CN105246017B - A kind of audio digital signal processor and system - Google Patents
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Abstract
本发明公开了一种音频数字信号处理器及系统，包括：无限冲击响应单元、三个多频段动态范围控制器及编解码器增益模块，其中，三个多频段动态范围控制器分别与无限冲击响应单元及编解码器增益模块相连，并同时接收无限冲击响应单元发送的声音数据信号，分别对声音数据信号进行音量调节、低音频段压缩及高音频段放大并发送至编解码器增益模块，编解码器增益模块将接收到的信号增益后输出。本方案通过设置三个多频段动态范围控制器，分别进行音量调节、低音频段的压缩及高音频段的放大，增加了声音在低音及高音频段的细节表现，实现了更换喇叭时，无需调整多频段动态范围控制器的参数，实现了音频参数的规范化管理。
The invention discloses an audio digital signal processor and system, comprising: an infinite impact response unit, three multi-band dynamic range controllers and a codec gain module, wherein the three multi-band dynamic range controllers are respectively connected with the infinite impact The response unit is connected to the codec gain module, and simultaneously receives the sound data signal sent by the infinite impact response unit, respectively performs volume adjustment, low-frequency band compression and high-frequency band amplification on the sound data signal, and sends it to the codec gain module, codec The amplifier gain module outputs the received signal after gain. This solution sets three multi-band dynamic range controllers to adjust the volume, compress the low-frequency band and amplify the high-frequency band respectively, which increases the detailed performance of the sound in the low-frequency and high-frequency bands, and realizes that when replacing the speaker, there is no need to adjust the multi-band The parameters of the dynamic range controller realize the standardized management of audio parameters.
Description
技术领域technical field
本发明涉及音频领域，尤其涉及一种音频数字信号处理器及系统。The invention relates to the audio field, in particular to an audio digital signal processor and system.
背景技术Background technique
针对高通平台单喇叭设计，通常通过对音频数字信号处理器DSP的改善来实现对喇叭播放音质的改善。For the single-speaker design of the Qualcomm platform, the sound quality of the speaker is usually improved by improving the audio digital signal processor DSP.
目前，由于手机外观不同，就会选择不同尺寸的喇叭，不同尺寸的喇叭灵敏度差异很大，就会导致音频DSP中的多频段动态范围控制器MBDRC的参数为了匹配频响而发生较大的变化，不便于控制管理音频参数。At present, due to the different appearance of mobile phones, speakers of different sizes are selected, and the sensitivity of speakers of different sizes is very different, which will lead to a large change in the parameters of the multi-band dynamic range controller MBDRC in the audio DSP to match the frequency response. , it is not convenient to control and manage audio parameters.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本发明提供一种音频数字信号处理器及系统，以解决现有技术中手机采用不同的喇叭，导致音频DSP中的多频段动态范围控制器的参数由于频响的变化而发生变化，不便于管理音频参数的问题，其具体方案如下：In view of this, the present invention provides an audio digital signal processor and system to solve the problem that the mobile phone uses different speakers in the prior art, which causes the parameters of the multi-band dynamic range controller in the audio DSP to change due to changes in frequency response. , it is not convenient to manage audio parameters, the specific solution is as follows:
一种音频数字信号处理器，包括：无限冲击响应单元，第一多频段动态范围控制器，第二多频段动态范围控制器，第三多频段动态范围控制器以及编解码器增益模块，其中：An audio digital signal processor, comprising: an infinite impulse response unit, a first multi-band dynamic range controller, a second multi-band dynamic range controller, a third multi-band dynamic range controller and a codec gain module, wherein:
所述第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别与所述无限冲击响应单元及编解码器增益模块相连；The first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller are respectively connected to the infinite impulse response unit and the codec gain module;
所述无限冲击响应单元用于接收声音数据信号，并将所述声音数据信号分别发送至所述第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器；The infinite impulse response unit is used to receive the sound data signal, and send the sound data signal to the first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller respectively device;
所述第一多频段动态范围控制器接收所述声音数据信号，对所述声音数据信号的音量进行调节，并发送；The first multi-band dynamic range controller receives the sound data signal, adjusts the volume of the sound data signal, and sends it;
所述第二多频段动态范围控制器接收所述声音数据信号，对所述声音数据信号的低音频段进行压缩，并发送；The second multi-band dynamic range controller receives the sound data signal, compresses the low frequency range of the sound data signal, and sends it;
所述第三多频段动态范围控制器接收所述声音数据信号，对所述声音数据信号的高音频段进行放大，并发送；The third multi-band dynamic range controller receives the sound data signal, amplifies the high-frequency range of the sound data signal, and sends it;
所述编解码器增益模块用于同时接收所述第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别发送的调节音量后的声音数据信号、压缩后的低音频段数据信号及放大后的高音频段数据信号，并进行信号增益后输出。The codec gain module is configured to simultaneously receive volume-adjusted sound data signals respectively sent by the first multi-band dynamic range controller, the second multi-band dynamic range controller, and the third multi-band dynamic range controller, The compressed low-frequency data signal and the amplified high-frequency data signal are output after signal gain.
进一步的，所述编解码器增益模块包括：第一编解码器增益单元及第二编解码器增益单元，其中：Further, the codec gain module includes: a first codec gain unit and a second codec gain unit, wherein:
所述第一编解码器增益单元与第二多频段动态范围控制器相连，用于接收所述第二多频段动态范围控制器发送的压缩后的低音频段数据信号，并进行信号增益后输出；The first codec gain unit is connected to the second multi-band dynamic range controller, and is used to receive the compressed low-frequency data signal sent by the second multi-band dynamic range controller, and output it after signal gain;
所述第二编解码器增益单元与第三多频段动态范围控制器相连，用于接收所述第三多频段动态范围控制器发送的放大后的高音频段数据信号，并进行信号增益后输出。The second codec gain unit is connected to the third multi-band dynamic range controller, and is used for receiving the amplified high-frequency band data signal sent by the third multi-band dynamic range controller, and outputting after signal gain.
进一步的，所述编解码器增益模块还包括：第三编解码增益单元，其中：Further, the codec gain module further includes: a third codec gain unit, wherein:
所述第三编解码器增益单元与第一多频段动态范围控制器相连，用于接收所述第一多频段动态范围控制器发送的音量调节后的声音数据信号，并进行信号增益后输出。The third codec gain unit is connected to the first multi-band dynamic range controller, and is used for receiving the volume-adjusted sound data signal sent by the first multi-band dynamic range controller, and outputting after signal gain.
一种音频数字信号处理系统，包括：音频数字信号处理器，，其中：An audio digital signal processing system, comprising: an audio digital signal processor, wherein:
所述音频数字信号处理器包括：无限冲击响应单元，第一多频段动态范围控制器，第二多频段动态范围控制器，第三多频段动态范围控制器以及编解码器增益模块，其中：The audio digital signal processor includes: an infinite impulse response unit, a first multi-band dynamic range controller, a second multi-band dynamic range controller, a third multi-band dynamic range controller and a codec gain module, wherein:
所述第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别与所述无限冲击响应单元及编解码器增益模块相连；The first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller are respectively connected to the infinite impulse response unit and the codec gain module;
所述无限冲击响应单元用于接收声音数据信号，并将所述声音数据信号分别发送至所述第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器；The infinite impulse response unit is used to receive the sound data signal, and send the sound data signal to the first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller respectively device;
所述第一多频段动态范围控制器接收所述声音数据信号，对所述声音数据信号的音量进行调节，并发送；The first multi-band dynamic range controller receives the sound data signal, adjusts the volume of the sound data signal, and sends it;
所述第二多频段动态范围控制器接收所述声音数据信号，对所述声音数据信号的低音频段进行压缩，并发送；The second multi-band dynamic range controller receives the sound data signal, compresses the low frequency range of the sound data signal, and sends it;
所述第三多频段动态范围控制器接收所述声音数据信号，对所述声音数据信号的高音频段进行放大，并发送；The third multi-band dynamic range controller receives the sound data signal, amplifies the high-frequency range of the sound data signal, and sends it;
所述编解码器增益模块用于同时接收所述第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别发送的调节音量后的声音数据信号、压缩后的低音频段数据信号及放大后的高音频段数据信号，并进行信号增益后输出。The codec gain module is configured to simultaneously receive volume-adjusted sound data signals respectively sent by the first multi-band dynamic range controller, the second multi-band dynamic range controller, and the third multi-band dynamic range controller, The compressed low-frequency data signal and the amplified high-frequency data signal are output after signal gain.
进一步的，所述编解码器增益模块包括：第一编解码器增益单元及第二编解码器增益单元，其中：Further, the codec gain module includes: a first codec gain unit and a second codec gain unit, wherein:
所述第一编解码器增益单元与第二多频段动态范围控制器相连，用于接收所述第二多频段动态范围控制器发送的压缩后的低音频段数据信号，并进行信号增益后输出；The first codec gain unit is connected to the second multi-band dynamic range controller, and is used to receive the compressed low-frequency data signal sent by the second multi-band dynamic range controller, and output it after signal gain;
所述第二编解码器增益单元与第三多频段动态范围控制器相连，用于接收所述第三多频段动态范围控制器发送的放大后的高音频段数据信号，并进行信号增益后输出。The second codec gain unit is connected to the third multi-band dynamic range controller, and is used for receiving the amplified high-frequency band data signal sent by the third multi-band dynamic range controller, and outputting after signal gain.
进一步的，所述编解码器增益模块还包括：第三编解码增益单元，其中：Further, the codec gain module further includes: a third codec gain unit, wherein:
所述第三编解码器增益单元与第一多频段动态范围控制器相连，用于接收所述第一多频段动态范围控制器发送的音量调节后的声音数据信号，并进行信号增益后输出。The third codec gain unit is connected to the first multi-band dynamic range controller, and is used for receiving the volume-adjusted sound data signal sent by the first multi-band dynamic range controller, and outputting after signal gain.
进一步的，还包括：与所述音频数字信号处理器相连的数字功率放大器，与所述数字功率放大器相连的扬声器，其中：Further, it also includes: a digital power amplifier connected to the audio digital signal processor, and a speaker connected to the digital power amplifier, wherein:
所述数字功率放大器用于接收所述音频数字信号处理器输出的信号，驱动所述扬声器。The digital power amplifier is used to receive the signal output by the audio digital signal processor and drive the speaker.
进一步的，还包括：分别与所述音频数字信号处理器及数字功率放大器相连的数模转换电路，其中：Further, it also includes: a digital-to-analog conversion circuit respectively connected to the audio digital signal processor and the digital power amplifier, wherein:
所述数模转换电路用于接收所述音频数字信号处理器输出的信号，进行数模转换后输出至所述数字功率放大器。The digital-to-analog conversion circuit is used to receive the signal output by the audio digital signal processor, perform digital-to-analog conversion, and output it to the digital power amplifier.
进一步的，所述扬声器具体为：手机喇叭。Further, the speaker is specifically: a mobile phone speaker.
从上述技术方案可以看出，本申请公开的音频数字信号处理器及系统，包括：无限冲击响应单元、第一多频段动态范围控制器、第二多频段动态范围控制器、第三多频段动态范围控制器及编解码器增益模块，其中，第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别与无限冲击响应单元及编解码器增益模块相连，并同时接收无限冲击响应发送的声音数据信号，分别对声音数据信号进行音量调节、低音频段压缩及高音频段放大之后发送至编解码器增益模块，编解码器增益模块将接收到的信号增益后输出。本方案通过设置三个多频段动态范围控制器，分别进行音量调节、低音频段的压缩及高音频段的放大，增加了声音在低音及高音频段的细节表现，实现了更换喇叭时，无需调整多频段动态范围控制器的参数，实现了音频参数的规范化管理。It can be seen from the above technical solutions that the audio digital signal processor and system disclosed in the present application include: an infinite impulse response unit, a first multi-band dynamic range controller, a second multi-band dynamic range controller, a third multi-band dynamic range controller, and a third multi-band dynamic range controller. Range controller and codec gain module, wherein, the first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller are respectively connected with the infinite impulse response unit and the codec gain module Connected, and receive the sound data signal sent by the infinite impact response at the same time, respectively adjust the volume of the sound data signal, compress the low frequency band and amplify the high frequency band, and then send it to the codec gain module, and the codec gain module will gain the received signal After output. In this solution, three multi-band dynamic range controllers are set up to adjust the volume, compress the low-frequency band and amplify the high-frequency band respectively, which increases the detailed performance of the sound in the low-frequency and high-frequency bands, and realizes that when replacing the speaker, there is no need to adjust the multi-band The parameters of the dynamic range controller realize the standardized management of audio parameters.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.
图1为本发明实施例公开的一种音频数字信号处理器的结构示意图；FIG. 1 is a schematic structural diagram of an audio digital signal processor disclosed in an embodiment of the present invention;
图2为本发明实施例公开的一种音频数字信号处理器的结构示意图；Fig. 2 is a schematic structural diagram of an audio digital signal processor disclosed in an embodiment of the present invention;
图3为本发明实施例公开的一种音频数字信号处理系统的结构示意图。Fig. 3 is a schematic structural diagram of an audio digital signal processing system disclosed by an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
本发明公开了一种音频数字信号处理器，其结构示意图如图1所示，包括：The invention discloses an audio digital signal processor, the structural diagram of which is shown in Figure 1, including:
无限冲击响应单元11，第一多频段动态范围控制器12，第二多频段动态范围控制器13，第三多频段动态范围控制器14，以及编解码器增益模块15。An infinite impulse response unit 11 , a first multi-band dynamic range controller 12 , a second multi-band dynamic range controller 13 , a third multi-band dynamic range controller 14 , and a codec gain module 15 .
其中，第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14分别与无限冲击响应单元11及编解码器增益模块15相连。Wherein, the first multi-band dynamic range controller 12 , the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 are connected to the infinite impulse response unit 11 and the codec gain module 15 respectively.
无限冲击响应单元11用于接收声音数据信号，并将该声音数据信号分别发送至第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14中，由第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14分别同时接收该声音数据信号中的所有信号。The infinite impulse response unit 11 is used to receive the sound data signal, and send the sound data signal to the first multi-band dynamic range controller 12, the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 Among them, the first multi-band dynamic range controller 12 , the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 receive all the signals in the audio data signal simultaneously.
第一多频段动态范围控制器12接收该声音数据信号，对该声音数据信号的整体音量进行调节，并发送出去。The first multi-band dynamic range controller 12 receives the audio data signal, adjusts the overall volume of the audio data signal, and sends it out.
第二多频段动态范围控制器13接收该声音数据信号，对该声音数据信号的低音频段进行压缩，并发送出去，使得低音频段的声音以低频输出。The second multi-band dynamic range controller 13 receives the sound data signal, compresses the low frequency range of the sound data signal, and sends it out, so that the sound in the low frequency range is output at a low frequency.
第三多频段动态范围控制器14接收该声音数据信号，对该声音数据信号的高音频段进行放大，并发送出去，使得高音频段的声音以高频输出。The third multi-band dynamic range controller 14 receives the sound data signal, amplifies the high-frequency range of the sound data signal, and sends it out, so that the sound in the high-frequency range is output at high frequency.
编解码器增益模块15用于同时接收第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14分别发送的调节音量后的声音数据信号、压缩后的低音频段数据信号及放大后的高音频段数据信号，并进行信号增益，以调节各频段音量，并同时输出至数字功率放大器，以控制扬声器同时发出经过第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14调节后的三个声音，实现了同时对声音中的低音及高音进行处理，使得低音更低、高音更高，提高了声音在低音及高音频段的细节表现。The codec gain module 15 is used to simultaneously receive the volume-adjusted sound data signals sent by the first multi-band dynamic range controller 12, the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 respectively, The compressed low-frequency band data signal and the amplified high-frequency band data signal are signal-gained to adjust the volume of each frequency band, and output to a digital power amplifier at the same time to control the speaker to simultaneously send out the first multi-band dynamic range controller 12 , the three voices adjusted by the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 have realized that the bass and treble in the sound are processed simultaneously, making the bass lower and the treble higher, improving the The detailed performance of the sound in the bass and treble range.
本实施例公开的音频数字信号处理器，包括：无限冲击响应单元、第一多频段动态范围控制器、第二多频段动态范围控制器、第三多频段动态范围控制器及编解码器增益模块，其中，第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别与无限冲击响应单元及编解码器增益模块相连，并同时接收无限冲击响应发送的声音数据信号，分别对声音数据信号进行音量调节、低音频段压缩及高音频段放大之后发送至编解码器增益模块，编解码器增益模块将接收到的信号增益后输出。本方案通过设置三个多频段动态范围控制器，分别进行音量调节、低音频段的压缩及高音频段的放大，增加了声音在低音及高音频段的细节表现，实现了更换喇叭时，无需调整多频段动态范围控制器的参数，实现了音频参数的规范化管理。The audio digital signal processor disclosed in this embodiment includes: an infinite impulse response unit, a first multi-band dynamic range controller, a second multi-band dynamic range controller, a third multi-band dynamic range controller and a codec gain module , wherein, the first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller are respectively connected with the infinite impulse response unit and the codec gain module, and simultaneously receive the infinite impulse response transmission The sound data signal of the sound data signal is respectively adjusted for volume, compressed in the low frequency range, and amplified in the high frequency range, and then sent to the codec gain module, and the codec gain module outputs the received signal after gain. In this solution, three multi-band dynamic range controllers are set up to adjust the volume, compress the low-frequency band and amplify the high-frequency band respectively, which increases the detailed performance of the sound in the low-frequency and high-frequency bands, and realizes that when replacing the speaker, there is no need to adjust the multi-band The parameters of the dynamic range controller realize the standardized management of audio parameters.
本实施例公开了一种音频数字信号处理器，其结构示意图如图2所示，包括：This embodiment discloses an audio digital signal processor, the structural diagram of which is shown in Figure 2, including:
无限冲击响应单元21，第一多频段动态范围控制器22，第二多频段动态范围控制器23，第三多频段动态范围控制器24，第一编解码器增益单元25及第二编解码器增益单元26。Infinite impulse response unit 21, first multi-band dynamic range controller 22, second multi-band dynamic range controller 23, third multi-band dynamic range controller 24, first codec gain unit 25 and second codec Gain unit 26.
其中，无限冲击响应单元21分别与第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24相连，第二多频段动态范围控制器23与第一编解码器增益单元25相连，第三多频段动态范围控制器24与第二编解码器增益单元26相连。Wherein, the infinite impulse response unit 21 is respectively connected with the first multi-band dynamic range controller 22, the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24, and the second multi-band dynamic range controller 23 is connected with The first codec gain unit 25 is connected, and the third multi-band dynamic range controller 24 is connected to the second codec gain unit 26 .
无限冲击响应单元21用于接收声音数据信号，并将该声音数据信号分别发送至第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24中，由第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24分别同时接收该声音数据信号中的所有信号。The infinite impulse response unit 21 is used to receive the sound data signal, and send the sound data signal to the first multi-band dynamic range controller 22, the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24 Among them, the first multi-band dynamic range controller 22 , the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24 receive all the signals in the audio data signal simultaneously.
第二多频段动态范围控制器23接收该声音数据信号，对该声音数据信号的低音频段进行压缩，并发送至第一编解码器增益单元25，使得低音频段的声音以低频输出；第一编解码器增益单元25接收第二多频段动态范围控制器23发送的压缩后的低音频段数据信号，并进行信号增益后输出。The second multi-band dynamic range controller 23 receives the sound data signal, compresses the low frequency range of the sound data signal, and sends it to the first codec gain unit 25, so that the sound of the low frequency range is output at low frequency; the first codec The decoder gain unit 25 receives the compressed low frequency band data signal sent by the second multi-band dynamic range controller 23, and outputs the signal after gaining the signal.
第三多频段动态范围控制器24接收该声音数据信号，对该声音数据信号的高音频段进行放大，并发送至第二编解码器增益单元26，使得高音频段的声音以高频输出；第二编解码器增益单元26接收第三多频段动态范围控制器24发送的放大后的高音频段数据信号，并进行信号增益后输出。The third multi-band dynamic range controller 24 receives the sound data signal, amplifies the treble section of the sound data signal, and sends it to the second codec gain unit 26, so that the sound of the treble section is output at high frequency; the second The codec gain unit 26 receives the amplified high-band data signal sent by the third multi-band dynamic range controller 24, and outputs the amplified signal after gaining the signal.
进一步的，本实施例公开的音频数字信号处理器还可以包括：第三编解码器增益单元27，其中：Further, the audio digital signal processor disclosed in this embodiment may further include: a third codec gain unit 27, wherein:
第三编解码器增益单元27与第一多频段动态范围控制器22相连，用于接收第一多频段动态范围控制器22发送的音量调节后的声音数据信号，并进行信号增益后输出。The third codec gain unit 27 is connected to the first multi-band dynamic range controller 22 for receiving the volume-adjusted sound data signal sent by the first multi-band dynamic range controller 22, and outputting after signal gain.
第一编解码器增益单元25、第二编解码器增益单元26及第三编解码器增益单元27用于分别调节各频段的音量，并同时输出至数字功率放大器，以控制扬声器同时发出经过第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24调节后的三个声音，实现了同时对声音中的低音及高音进行处理，使得低音更低、高音更高，提高了声音在低音及高音频段的细节表现。The first codec gain unit 25, the second codec gain unit 26 and the third codec gain unit 27 are used to adjust the volume of each frequency band respectively, and output to the digital power amplifier at the same time, so as to control the loudspeaker to simultaneously send out the The three voices adjusted by a multi-band dynamic range controller 22, the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24 have realized that the bass and treble in the sound are processed simultaneously, so that the bass Lower and higher treble, improving the detailed performance of the sound in the bass and treble range.
同时，采用第一编解码器增益单元25、第二编解码器增益单元26及第三编解码器增益单元27，以便于实现在扬声器发生变化时，无需调节各个频段多频段动态范围控制器的参数，只需要调节编解码器增益单元的参数即可。At the same time, the first codec gain unit 25, the second codec gain unit 26 and the third codec gain unit 27 are adopted, so that when the loudspeaker changes, there is no need to adjust the multi-band dynamic range controller of each frequency band. parameters, you only need to adjust the parameters of the codec gain unit.
例如，当前使用的通用尺寸的扬声器，各个频段多频段动态范围控制器的参数以及编解码器增益单元的参数均已调整好，若此时，需要将扬声器换成一个高频扬声器，此时，无需调整各个频段多频段动态范围控制器的参数，只需要适当调整编解码器增益单元的参数即可，如，将第三编解码器增益单元27的参数降低。For example, the current general-sized speaker, the parameters of the multi-band dynamic range controller of each frequency band and the parameters of the codec gain unit have been adjusted. If at this time, the speaker needs to be replaced by a high-frequency speaker, at this time, There is no need to adjust the parameters of the multi-band dynamic range controller for each frequency band, but only need to properly adjust the parameters of the codec gain unit, for example, reduce the parameters of the third codec gain unit 27 .
本实施例公开的音频数字信号处理器，包括：无限冲击响应单元、第一多频段动态范围控制器、第二多频段动态范围控制器、第三多频段动态范围控制器及编解码器增益模块，其中，第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别与无限冲击响应单元及编解码器增益模块相连，并同时接收无限冲击响应发送的声音数据信号，分别对声音数据信号进行音量调节、低音频段压缩及高音频段放大之后发送至编解码器增益模块，编解码器增益模块将接收到的信号增益后输出。本方案通过设置三个多频段动态范围控制器，分别进行音量调节、低音频段的压缩及高音频段的放大，增加了声音在低音及高音频段的细节表现，实现了更换喇叭时，无需调整多频段动态范围控制器的参数，实现了音频参数的规范化管理。The audio digital signal processor disclosed in this embodiment includes: an infinite impulse response unit, a first multi-band dynamic range controller, a second multi-band dynamic range controller, a third multi-band dynamic range controller and a codec gain module , wherein, the first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller are respectively connected with the infinite impulse response unit and the codec gain module, and simultaneously receive the infinite impulse response transmission The sound data signal of the sound data signal is respectively adjusted for volume, compressed in the low frequency range, and amplified in the high frequency range, and then sent to the codec gain module, and the codec gain module outputs the received signal after gain. In this solution, three multi-band dynamic range controllers are set up to adjust the volume, compress the low-frequency band and amplify the high-frequency band respectively, which increases the detailed performance of the sound in the low-frequency and high-frequency bands, and realizes that when replacing the speaker, there is no need to adjust the multi-band The parameters of the dynamic range controller realize the standardized management of audio parameters.
本实施例公开了一种音频数字信号处理系统，包括：音频数字信号处理器，其中，音频数字信号处理器的结构示意图如图1所示，包括：This embodiment discloses an audio digital signal processing system, including: an audio digital signal processor, wherein, a schematic structural diagram of the audio digital signal processor is shown in FIG. 1 , including:
无限冲击响应单元11，第一多频段动态范围控制器12，第二多频段动态范围控制器13，第三多频段动态范围控制器14，以及编解码器增益模块15。An infinite impulse response unit 11 , a first multi-band dynamic range controller 12 , a second multi-band dynamic range controller 13 , a third multi-band dynamic range controller 14 , and a codec gain module 15 .
其中，第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14分别与无限冲击响应单元11及编解码器增益模块15相连。Wherein, the first multi-band dynamic range controller 12 , the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 are connected to the infinite impulse response unit 11 and the codec gain module 15 respectively.
无限冲击响应单元11用于接收声音数据信号，并将该声音数据信号分别发送至第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14中，由第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14分别同时接收该声音数据信号中的所有信号。The infinite impulse response unit 11 is used to receive the sound data signal, and send the sound data signal to the first multi-band dynamic range controller 12, the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 Among them, the first multi-band dynamic range controller 12 , the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 receive all the signals in the audio data signal simultaneously.
第一多频段动态范围控制器12接收该声音数据信号，对该声音数据信号的整体音量进行调节，并发送出去。The first multi-band dynamic range controller 12 receives the audio data signal, adjusts the overall volume of the audio data signal, and sends it out.
第二多频段动态范围控制器13接收该声音数据信号，对该声音数据信号的低音频段进行压缩，并发送出去，使得低音频段的声音以低频输出。The second multi-band dynamic range controller 13 receives the sound data signal, compresses the low frequency range of the sound data signal, and sends it out, so that the sound in the low frequency range is output at a low frequency.
第三多频段动态范围控制器14接收该声音数据信号，对该声音数据信号的高音频段进行放大，并发送出去，使得高音频段的声音以高频输出。The third multi-band dynamic range controller 14 receives the sound data signal, amplifies the high-frequency range of the sound data signal, and sends it out, so that the sound in the high-frequency range is output at high frequency.
编解码器增益模块15用于同时接收第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14分别发送的调节音量后的声音数据信号、压缩后的低音频段数据信号及放大后的高音频段数据信号，并进行信号增益，以调节各频段音量，并同时输出至数字功率放大器，以控制扬声器同时发出经过第一多频段动态范围控制器12、第二多频段动态范围控制器13及第三多频段动态范围控制器14调节后的三个声音，实现了同时对声音中的低音及高音进行处理，使得低音更低、高音更高，提高了声音在低音及高音频段的细节表现。The codec gain module 15 is used to simultaneously receive the volume-adjusted sound data signals sent by the first multi-band dynamic range controller 12, the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 respectively, The compressed low-frequency band data signal and the amplified high-frequency band data signal are signal-gained to adjust the volume of each frequency band, and output to a digital power amplifier at the same time to control the speaker to simultaneously send out the first multi-band dynamic range controller 12 , the three voices adjusted by the second multi-band dynamic range controller 13 and the third multi-band dynamic range controller 14 have realized that the bass and treble in the sound are processed simultaneously, making the bass lower and the treble higher, improving the The detailed performance of the sound in the bass and treble range.
进一步的，本实施例公开的音频数字信号处理系统的结构示意图如图3所示，包括：Further, the structural diagram of the audio digital signal processing system disclosed in this embodiment is shown in Figure 3, including:
音频数字信号处理器31，与音频数字信号处理器31相连的数字功率放大器32，与数字功率放大器32相连的扬声器33。An audio digital signal processor 31 , a digital power amplifier 32 connected to the audio digital signal processor 31 , and a speaker 33 connected to the digital power amplifier 32 .
数字功率放大器32用于接收音频数字信号处理器输出的信号，控制开关，以实现驱动扬声器33的作用。The digital power amplifier 32 is used to receive the signal output by the audio digital signal processor, and control the switch to realize the function of driving the speaker 33 .
其中，扬声器33可以为：普通的用于播放音乐的喇叭，此处，扬声器33也可以通过受话器来代替，用来实现手机通话。其中，手机常用尺寸的喇叭有9*16mm、15*11mm、13*18mm等尺寸，根据不同尺寸的喇叭，调整音频数字信号处理器31中的各个单元的参数。Wherein, the loudspeaker 33 can be: a common loudspeaker for playing music, and here, the loudspeaker 33 can also be replaced by a receiver to realize a mobile phone call. Among them, the speakers of commonly used sizes for mobile phones are 9*16mm, 15*11mm, 13*18mm and other sizes, and the parameters of each unit in the audio digital signal processor 31 are adjusted according to the speakers of different sizes.
进一步的，本实施例公开的音频数字信号处理系统，还可以包括：数模转换电路，其中：Further, the audio digital signal processing system disclosed in this embodiment may further include: a digital-to-analog conversion circuit, wherein:
数模转换电路分别与音频数字信号处理器及数字功率放大器相连，用于接收音频数字信号处理器输出的信号，进行数模转换后输出至数字功率放大器。The digital-to-analog conversion circuit is respectively connected with the audio digital signal processor and the digital power amplifier, and is used for receiving the signal output by the audio digital signal processor, performing digital-to-analog conversion, and outputting to the digital power amplifier.
本实施例公开的音频数字信号处理系统，其中，包括：音频数字信号处理器、数字功率放大器及扬声器，其中，音频数字信号处理器包括：无限冲击响应单元、第一多频段动态范围控制器、第二多频段动态范围控制器、第三多频段动态范围控制器及编解码器增益模块，其中，第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别与无限冲击响应单元及编解码器增益模块相连，并同时接收无限冲击响应发送的声音数据信号，分别对声音数据信号进行音量调节、低音频段压缩及高音频段放大之后发送至编解码器增益模块，编解码器增益模块将接收到的信号增益后输出。本方案通过设置三个多频段动态范围控制器，分别进行音量调节、低音频段的压缩及高音频段的放大，增加了声音在低音及高音频段的细节表现，实现了更换喇叭时，无需调整多频段动态范围控制器的参数，实现了音频参数的规范化管理。The audio digital signal processing system disclosed in this embodiment includes: an audio digital signal processor, a digital power amplifier, and a loudspeaker, wherein the audio digital signal processor includes: an infinite impulse response unit, a first multi-band dynamic range controller, The second multi-band dynamic range controller, the third multi-band dynamic range controller and the codec gain module, wherein the first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range The controller is connected with the IIR unit and the codec gain module respectively, and simultaneously receives the sound data signal sent by the IIR, respectively adjusts the volume of the sound data signal, compresses the low frequency range and amplifies the high frequency range, and then sends it to the codec Gain module, the codec gain module outputs the received signal after gain. In this solution, three multi-band dynamic range controllers are set up to adjust the volume, compress the low-frequency band and amplify the high-frequency band respectively, which increases the detailed performance of the sound in the low-frequency and high-frequency bands, and realizes that when replacing the speaker, there is no need to adjust the multi-band The parameters of the dynamic range controller realize the standardized management of audio parameters.
本实施例公开了一种音频数字信号处理系统，其结构示意图如图3所示，包括：This embodiment discloses an audio digital signal processing system, the structural diagram of which is shown in Figure 3, including:
音频数字信号处理器31，与音频数字信号处理器31相连的数字功率放大器32，与数字功率放大器32相连的扬声器33。An audio digital signal processor 31 , a digital power amplifier 32 connected to the audio digital signal processor 31 , and a speaker 33 connected to the digital power amplifier 32 .
其中，音频数字信号处理器31的结构示意图可以如图2所示，包括：无限冲击响应单元21，第一多频段动态范围控制器22，第二多频段动态范围控制器23，第三多频段动态范围控制器24，第一编解码器增益单元25及第二编解码器增益单元26。Wherein, the structural diagram of audio digital signal processor 31 can be as shown in Figure 2, comprises: infinite impulse response unit 21, the first multi-band dynamic range controller 22, the second multi-band dynamic range controller 23, the third multi-band A dynamic range controller 24 , a first codec gain unit 25 and a second codec gain unit 26 .
其中，无限冲击响应单元21分别与第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24相连，第二多频段动态范围控制器23与第一编解码器增益单元25相连，第三多频段动态范围控制器24与第二编解码器增益单元26相连。Wherein, the infinite impulse response unit 21 is respectively connected with the first multi-band dynamic range controller 22, the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24, and the second multi-band dynamic range controller 23 is connected with The first codec gain unit 25 is connected, and the third multi-band dynamic range controller 24 is connected to the second codec gain unit 26 .
无限冲击响应单元21用于接收声音数据信号，并将该声音数据信号分别发送至第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24中，由第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24分别同时接收该声音数据信号中的所有信号。The infinite impulse response unit 21 is used to receive the sound data signal, and send the sound data signal to the first multi-band dynamic range controller 22, the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24 Among them, the first multi-band dynamic range controller 22 , the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24 receive all the signals in the audio data signal simultaneously.
第二多频段动态范围控制器23接收该声音数据信号，对该声音数据信号的低音频段进行压缩，并发送至第一编解码器增益单元25，使得低音频段的声音以低频输出；第一编解码器增益单元25接收第二多频段动态范围控制器23发送的压缩后的低音频段数据信号，并进行信号增益后输出。The second multi-band dynamic range controller 23 receives the sound data signal, compresses the low frequency range of the sound data signal, and sends it to the first codec gain unit 25, so that the sound of the low frequency range is output at low frequency; the first codec The decoder gain unit 25 receives the compressed low frequency band data signal sent by the second multi-band dynamic range controller 23, and outputs the signal after gaining the signal.
第三多频段动态范围控制器24接收该声音数据信号，对该声音数据信号的高音频段进行放大，并发送至第二编解码器增益单元26，使得高音频段的声音以高频输出；第二编解码器增益单元26接收第三多频段动态范围控制器24发送的放大后的高音频段数据信号，并进行信号增益后输出。The third multi-band dynamic range controller 24 receives the sound data signal, amplifies the treble section of the sound data signal, and sends it to the second codec gain unit 26, so that the sound of the treble section is output at high frequency; the second The codec gain unit 26 receives the amplified high-band data signal sent by the third multi-band dynamic range controller 24, and outputs the amplified signal after gaining the signal.
进一步的，本实施例公开的音频数字信号处理器还可以包括：第三编解码器增益单元27，其中：Further, the audio digital signal processor disclosed in this embodiment may further include: a third codec gain unit 27, wherein:
第三编解码器增益单元27与第一多频段动态范围控制器22相连，用于接收第一多频段动态范围控制器22发送的音量调节后的声音数据信号，并进行信号增益后输出。The third codec gain unit 27 is connected to the first multi-band dynamic range controller 22 for receiving the volume-adjusted sound data signal sent by the first multi-band dynamic range controller 22, and outputting after signal gain.
第一编解码器增益单元25、第二编解码器增益单元26及第三编解码器增益单元27用于分别调节各频段的音量，并同时输出至数字功率放大器，以控制扬声器同时发出经过第一多频段动态范围控制器22、第二多频段动态范围控制器23及第三多频段动态范围控制器24调节后的三个声音，实现了同时对声音中的低音及高音进行处理，使得低音更低、高音更高，提高了声音在低音及高音频段的细节表现。The first codec gain unit 25, the second codec gain unit 26 and the third codec gain unit 27 are used to adjust the volume of each frequency band respectively, and output to the digital power amplifier at the same time, so as to control the loudspeaker to simultaneously send out the The three voices adjusted by a multi-band dynamic range controller 22, the second multi-band dynamic range controller 23 and the third multi-band dynamic range controller 24 have realized that the bass and treble in the sound are processed simultaneously, so that the bass Lower and higher treble, improving the detailed performance of the sound in the bass and treble range.
同时，采用第一编解码器增益单元25、第二编解码器增益单元26及第三编解码器增益单元27，以便于实现在扬声器发生变化时，无需调节各个频段多频段动态范围控制器的参数，只需要调节编解码器增益单元的参数即可。At the same time, the first codec gain unit 25, the second codec gain unit 26 and the third codec gain unit 27 are adopted, so that when the loudspeaker changes, there is no need to adjust the multi-band dynamic range controller of each frequency band. parameters, you only need to adjust the parameters of the codec gain unit.
例如，当前使用的通用尺寸的扬声器，各个频段多频段动态范围控制器的参数以及编解码器增益单元的参数均已调整好，若此时，需要将扬声器换成一个高频扬声器，此时，无需调整各个频段多频段动态范围控制器的参数，只需要适当调整编解码器增益单元的参数即可，如，将第三编解码器增益单元27的参数降低。For example, the current general-sized speaker, the parameters of the multi-band dynamic range controller of each frequency band and the parameters of the codec gain unit have been adjusted. If at this time, the speaker needs to be replaced by a high-frequency speaker, at this time, There is no need to adjust the parameters of the multi-band dynamic range controller for each frequency band, but only need to properly adjust the parameters of the codec gain unit, for example, reduce the parameters of the third codec gain unit 27 .
本实施例公开的音频数字信号处理器，包括：无限冲击响应单元、第一多频段动态范围控制器、第二多频段动态范围控制器、第三多频段动态范围控制器及编解码器增益模块，其中，第一多频段动态范围控制器、第二多频段动态范围控制器及第三多频段动态范围控制器分别与无限冲击响应单元及编解码器增益模块相连，并同时接收无限冲击响应发送的声音数据信号，分别对声音数据信号进行音量调节、低音频段压缩及高音频段放大之后发送至编解码器增益模块，编解码器增益模块将接收到的信号增益后输出。本方案通过设置三个多频段动态范围控制器，分别进行音量调节、低音频段的压缩及高音频段的放大，增加了声音在低音及高音频段的细节表现，实现了更换喇叭时，无需调整多频段动态范围控制器的参数，实现了音频参数的规范化管理。The audio digital signal processor disclosed in this embodiment includes: an infinite impulse response unit, a first multi-band dynamic range controller, a second multi-band dynamic range controller, a third multi-band dynamic range controller and a codec gain module , wherein, the first multi-band dynamic range controller, the second multi-band dynamic range controller and the third multi-band dynamic range controller are respectively connected with the infinite impulse response unit and the codec gain module, and simultaneously receive the infinite impulse response transmission The sound data signal of the sound data signal is respectively adjusted for volume, compressed in the low frequency range, and amplified in the high frequency range, and then sent to the codec gain module, and the codec gain module outputs the received signal after gain. In this solution, three multi-band dynamic range controllers are set up to adjust the volume, compress the low-frequency band and amplify the high-frequency band respectively, which increases the detailed performance of the sound in the low-frequency and high-frequency bands, and realizes that when replacing the speaker, there is no need to adjust the multi-band The parameters of the dynamic range controller realize the standardized management of audio parameters.
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part.
专业人员还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。Professionals may further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the possibilities of hardware and software. Interchangeability, the above description has generally described the components and steps of each example in terms of functionality. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.
结合本文中所公开的实施例描述的方法或算法的步骤可以直接用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
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