WO2019006779A1 - 有源线阵音响声场调校的方法、装置及系统 - Google Patents

有源线阵音响声场调校的方法、装置及系统 Download PDF

Info

Publication number
WO2019006779A1
WO2019006779A1 PCT/CN2017/093466 CN2017093466W WO2019006779A1 WO 2019006779 A1 WO2019006779 A1 WO 2019006779A1 CN 2017093466 W CN2017093466 W CN 2017093466W WO 2019006779 A1 WO2019006779 A1 WO 2019006779A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
sound
subwoofer
signal
full frequency
Prior art date
Application number
PCT/CN2017/093466
Other languages
English (en)
French (fr)
Inventor
何欢潮
何伟峰
何图
郭泳茵
Original Assignee
广州飞达音响股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州飞达音响股份有限公司 filed Critical 广州飞达音响股份有限公司
Publication of WO2019006779A1 publication Critical patent/WO2019006779A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers

Definitions

  • the present invention relates to the field of audio technology, and in particular, to a method, device and system for adjusting a sound field of an active line array.
  • Line array audio is formed by linear array of multiple audio units, and its sound reinforcement system is unmatched by ordinary audio.
  • there is a certain problem with the line array audio There is interference between the sound units of the line array sound. If not handled properly, the sound quality of the entire line array sound will be deteriorated. Therefore, for the line array sound. Tuning is crucial.
  • the tuning of the traditional line array audio is only to do some simple high-low frequency and frequency response compensation for the line array audio. The adjustment by this method is not only time-consuming, inefficient, but also difficult to achieve the desired sound quality.
  • a method for sound field adjustment of an active line array sound comprising a subwoofer unit and more than one full frequency unit; the method comprising the steps of:
  • the sound field calibration information is compared by comparing the audio signal with the The test sound signal is obtained.
  • a method for sound field adjustment of an active line array comprising:
  • the terminal sends an audio signal to the active line array sound through the network
  • the active line array sound respectively receives the audio signal through the subwoofer unit and the full frequency unit; and the sound signal corresponding to the audio signal respectively output by the subwoofer unit and the full frequency unit, according to The sound signal output by the subwoofer unit and the full frequency unit obtains a test sound signal;
  • the active line array audio receives the sound field calibration information, and separately adjusts the subwoofer unit and each full frequency unit according to the sound field calibration information.
  • An apparatus for active line array sound adjustment comprising a subwoofer unit and more than one full frequency unit;
  • the adjustment device includes:
  • a receiving module configured to receive, by the subwoofer unit and the full frequency unit, an audio signal sent by the terminal through the network, respectively;
  • a conversion module configured to obtain a test sound signal according to the sound signal corresponding to the audio signal output by the subwoofer unit and the full frequency unit respectively, according to the sound signal output by the subwoofer unit and the full frequency unit ;
  • a calibration module configured to receive sound field calibration information sent by the terminal through the network, and perform adjustment on the subwoofer unit and each full frequency unit according to the sound field calibration information; the sound field calibration information is compared by comparing the audio signal with The test sound signal is obtained.
  • An active line array sound calibration system includes a terminal and an active line array sound, and the terminal and the active line array sound are connected through a network;
  • the active line array sound includes a subwoofer unit and more than one full frequency unit;
  • the subwoofer unit and each of the full frequency units include: a network signal input interface and a DSP number Word signal processor;
  • the subwoofer unit and the respective full frequency units receive the audio signal through respective network signal input interfaces, and pass the DSP digital signal processor pair The audio signal is processed and the corresponding sound signal is output to obtain a test sound signal;
  • the active line array audio receives the sound field calibration information to separately adjust the subwoofer unit and each full frequency unit according to the sound field calibration information.
  • the above method and device for adjusting the sound field of the active line array sound and the active line array sound system respectively receive the audio signal transmitted by the terminal through the network through the subwoofer unit and the full frequency unit, and output the sound signal corresponding to the audio signal, according to the output
  • the sound signal obtains a test sound signal
  • the terminal compares the test sound signal and the audio signal to obtain sound field calibration information and sends it to the active line array sound, thereby remotely adjusting the subwoofer unit of the active line array sound and
  • the full-frequency unit the above solution of the present invention directly obtains the adjustment information of the sound field directly for the output effect of the active line array sound, and does not need to be adjusted according to the experience of the technician, greatly improves the efficiency of the sound field adjustment, and obtains an ideal sound field effect.
  • FIG. 1 is a schematic flow chart of a method for sound field adjustment of an active line array in an embodiment
  • FIG. 2 is a schematic flow chart of a method for sound field adjustment of an active line array in another embodiment
  • FIG. 3 is a schematic structural view of an apparatus for adjusting the sound field of an active line array in an embodiment
  • FIG. 4 is a schematic structural diagram of an active line array sound adjustment system in an embodiment.
  • FIG. 1 is a schematic flow chart of a method for adjusting the sound field of an active line array in an embodiment, as shown in FIG. 1.
  • the active line array sound includes a subwoofer unit and more than one full frequency unit; the method includes the steps of:
  • S101 Receive an audio signal sent by the terminal through the network by using the subwoofer unit and the full frequency unit respectively.
  • the subwoofer can output the sound signal of the ultra-low frequency band by frequency division, the full frequency unit can output the full frequency signal, and the ultra low frequency unit and the full frequency unit can input the network signal.
  • the subwoofer unit and the full frequency unit receive the audio signal transmitted by the terminal through the network, wherein the audio signal is a data signal for testing the sound field effect of the active line array sound.
  • the subwoofer unit and the full frequency unit After receiving the audio signal, the subwoofer unit and the full frequency unit output a sound signal corresponding to the audio signal through a certain process, and the ultra low frequency unit and the full frequency unit output sound have different frequency bands, so the ultra low frequency is
  • the test sound signal is obtained by combining the sound signal outputted by the unit and the full frequency unit, wherein the test sound signal is a sound signal audible to the human ear corresponding to the audio signal.
  • S103 Receive sound field calibration information sent by the terminal through the network, and perform adjustment on the subwoofer unit and each full frequency unit according to the sound field calibration information; the sound field calibration information compares the audio signal with the test sound The signal is obtained.
  • the sound field calibration information can be obtained, and according to the sound field calibration information, the ultra low frequency unit and each full frequency unit can be adjusted to change the active line.
  • the sound field effect of the array sound can be obtained, and according to the sound field calibration information, the ultra low frequency unit and each full frequency unit can be adjusted to change the active line.
  • the audio signal transmitted by the terminal through the network is output, the corresponding test sound signal is output according to the audio signal, and then the test sound signal and the audio signal are compared to obtain a sound field.
  • Adjust the information adjust the subwoofer unit and each full-frequency unit according to the sound field adjustment information.
  • the step of respectively outputting the sound signal corresponding to the audio signal by the subwoofer unit and the full frequency unit comprises: respectively, by using the subwoofer unit and the full frequency unit
  • the audio signal is subjected to generator selection, input equalization adjustment, frequency division network adjustment, output equalization adjustment, delay adjustment processing, and/or power amplification processing, and outputs corresponding sound signals.
  • the audio signal is processed by performing the setting before the sound field adjustment, wherein the processing includes generator selection, input equalization adjustment, frequency division network adjustment, output equalization adjustment, delay adjustment processing, and/or power.
  • the amplification process is performed to obtain a sound signal corresponding to each unit output.
  • the processed audio signal is subjected to a filtering operation before the corresponding sound signal is output.
  • the sound field calibration information includes first calibration information and second calibration information; the first calibration information and the second calibration information each include: generator selection information, input equalization adjustment information, and a frequency division network. One or more of adjustment information, output equalization adjustment information, and delay adjustment processing information.
  • the step of adjusting the subwoofer unit and the full frequency unit according to the sound field calibration information comprises:
  • the generator, the input equalization, the frequency division network, the output equalization, and/or the delay module of the subwoofer are tuned according to the first calibration information.
  • the generator, input equalization, frequency division network, output equalization and/or delay module of each full frequency unit are calibrated according to the second calibration information.
  • the subwoofer unit and the full frequency unit are separately adjusted by using the first calibration information and the second calibration information, wherein the first adjustment information and the second adjustment information each include: generator selection information And inputting one or more of equalization adjustment information, frequency division network adjustment information, output balance adjustment information, and delay adjustment processing information. According to the corresponding adjustment information, the subwoofer unit and the full-frequency unit are tuned to make the re-playing effect ideal.
  • the step of adjusting the generator of the subwoofer unit and the full frequency unit comprises: adjusting a generator signal of the subwoofer unit and the full frequency unit generator, the generator signal comprising: white noise, pink noise Sweep signal;
  • the steps of adjusting the input equalization of the subwoofer unit and the full frequency unit include: compensating the frequency response curve of the subwoofer unit and the full frequency unit box; and dividing the subwoofer unit and the full frequency unit
  • the frequency network adjustment steps include: attenuation of the low pass filtering of the subwoofer unit The slope and the frequency dividing point are adjusted; the attenuation slope, the frequency dividing point and the band pass gain of the high-pass filtering of each full-frequency unit are adjusted; the steps of adjusting the output equalization of the subwoofer unit and the full-frequency unit include: The woofer unit and the full-frequency unit are adjusted with preset frequency, gain and bandwidth; the steps of adjusting the delay module of the subwoofer unit and the full-frequency unit include: adjusting the time for the
  • FIG. 2 is a schematic flow chart of a method for sound field adjustment of an active line array acoustics in another embodiment, the active line array sound comprising a subwoofer unit and more than one full frequency unit, as shown in FIG.
  • the steps of the method include:
  • the terminal sends an audio signal to the active line array audio through the network.
  • the active line array audio respectively receives the audio signal through the subwoofer unit and the full frequency unit; and the sound signal corresponding to the audio signal respectively output by the subwoofer unit and the full frequency unit respectively And obtaining a test sound signal according to the sound signal output by the subwoofer unit and the full frequency unit.
  • the terminal receives the test sound signal, obtains corresponding sound field calibration information by comparing the test sound signal and the audio signal, and sends the sound field calibration information to the active line array sound through a network.
  • the active line array audio receives the sound field calibration information, and adjusts the subwoofer unit and each full frequency unit according to the sound field calibration information.
  • the audio signal is generated by the terminal and transmitted to the active line array audio through the network.
  • the test sound signal is output, and the sound signal and the audio signal are tested and analyzed in the terminal through contrast analysis.
  • the sound field adjustment information is obtained, and the sound field is adjusted according to the sound field adjustment information, and the adjustment efficiency is high.
  • the step of obtaining the corresponding sound field calibration information by comparing the test sound signal and the audio signal may include: converting the test sound signal into an analog audio signal, and comparing the analog audio signal.
  • the frequency curve and the frequency curve of the audio signal obtain corresponding sound field calibration information.
  • the test sound signal is first converted into an analog audio signal, and then the terminal passes the analysis.
  • the difference between the frequency curve of the analog audio signal and the frequency curve of the audio signal is corrected, that is, the calibration information of the sound field.
  • the terminal generates an audio signal for testing, and sends the audio signal to the active line array audio through the network.
  • the active line array sound receives the audio signal for testing, and is processed by the electronic chip built in the subwoofer unit and the full frequency unit, respectively outputting a sound signal of a frequency band, combining the sound signals output by the subwoofer unit and the full frequency unit, A test sound signal is obtained, wherein the test sound signal is a sound signal audible to the human ear.
  • the terminal receives the test sound signal.
  • a sound collection device can be set on the site of the active line array audio installation, and the sound signal is converted into an analog audio signal by the sound collection device, and transmitted back to the terminal through the network, and the terminal returns through comparison.
  • the analog audio signal and the test audio signal obtain sound field calibration information, and the sound field calibration information is sent to the active line array sound through the network.
  • the full-frequency unit and the subwoofer unit in the active line array audio respectively receive the sound field adjustment information, and by changing the parameters of the built-in electronic chip, the following processes can be realized: generator, input equalization, frequency division network, output equalization And a delay module.
  • the full-frequency unit and the subwoofer unit in the active line array sound respectively analyze the sound field adjustment information, and obtain the content included in the sound field adjustment information, and the sound field adjustment information includes: generator selection information, input equalization adjustment information, One or more of the frequency division network adjustment information, the output balance adjustment information, and the delay adjustment processing information.
  • the sound field adjustment information includes generator selection information and frequency division network adjustment information, and the generator is adjusted according to the generator selection information, specifically one of selecting generator signals such as white noise, pink noise, and frequency sweep signal;
  • the frequency division network adjustment information the frequency division network is adjusted, specifically adjusting the attenuation slope and the frequency division point of the low pass filtering of the subwoofer unit, and the attenuation slope, the frequency dividing point and the band of the high pass filtering of each full frequency unit Adjust by the gain.
  • the present invention also provides an adjustment device for an active line array sound, which can be used to perform the above-mentioned active line array acoustic sound field adjustment. method.
  • an adjustment device for an active line array sound which can be used to perform the above-mentioned active line array acoustic sound field adjustment. method.
  • the adjustment School equipment includes:
  • the receiving module 41 is configured to receive, by the subwoofer unit and the full frequency unit, an audio signal sent by the terminal through the network.
  • the conversion module 42 is configured to obtain a test sound according to the sound signal corresponding to the audio signal output by the subwoofer unit and the full frequency unit respectively, according to the sound signal output by the subwoofer unit and the full frequency unit signal.
  • the calibration module 43 is configured to receive sound field calibration information sent by the terminal through the network, and perform adjustment on the subwoofer unit and each full frequency unit according to the sound field calibration information; the sound field calibration information is compared by comparing the audio signals Obtained with the test sound signal.
  • the receiving module 41 can receive the audio signal sent by the terminal through the network, and in the conversion module 42, convert the audio signal into a corresponding test sound signal, and the calibration module 43 receives the sound field calibration information, and has The sound field of the source line array is adjusted.
  • the efficiency of the sound field adjustment of the active line array can be improved, and the sound field effect of the active line array sound is ideal.
  • the conversion module 42 is further configured to perform generator selection, input equalization adjustment, frequency division network adjustment, output equalization adjustment, respectively, on the audio signal by using the subwoofer unit and the full frequency unit.
  • the delay adjustment process and/or the power amplification process output a corresponding sound signal.
  • the conversion module 42 performs the setting before the sound field adjustment to perform the audio signal. Processing, wherein the processing includes generator selection, input equalization adjustment, frequency division network adjustment, output equalization adjustment, delay adjustment processing, and/or power amplification processing, preferably, before processing the corresponding sound signal, the processed The audio signal is filtered.
  • the sound field calibration information includes first calibration information and second calibration information; the first calibration information and the second calibration information each include: generator selection information, input equalization adjustment information, and a frequency division network. One or more of adjustment information, output equalization adjustment information, and delay adjustment processing information;
  • the calibration module 43 is further configured to perform, according to the first calibration information, a generator, an input equalization, a frequency division network, an output equalization, and/or a delay module of the subwoofer, and The generator, input equalization, frequency division network, output equalization and/or delay module of each full frequency unit are calibrated according to the second calibration information.
  • the calibration module 43 adjusts the subwoofer unit and the full frequency unit respectively by using the first adjustment information and the second adjustment information, wherein the first adjustment information and the second adjustment information both include: One or more of generator selection information, input equalization adjustment information, frequency division network adjustment information, output equalization adjustment information, and delay adjustment processing information. According to the corresponding adjustment information, the subwoofer unit and the full-frequency unit are tuned to make the re-playing effect ideal.
  • the step of adjusting the generator of the subwoofer unit and the full frequency unit by the calibration module 43 comprises: adjusting the generator signals of the subwoofer unit and the full frequency unit generator, the generator signals including: white Noise, pink noise, sweeping signal; the steps of adjusting the input equalization of the subwoofer unit and the full-frequency unit include: compensating the frequency response curve of the subwoofer unit and the full-frequency unit box; for the subwoofer unit and the whole
  • the step of adjusting the frequency division network of the frequency unit includes: adjusting the attenuation slope and the frequency dividing point of the low pass filtering of the subwoofer unit; and the attenuation slope, the frequency dividing point and the band pass gain of the high pass filtering of each full frequency unit Adjusting; adjusting the output equalization of the subwoofer and the full-range unit includes: adjusting the preset frequency, gain, and bandwidth of the subwoofer and the full-range unit; and extending the subwoofer and the full-range unit
  • the step of adjusting the module includes: adjusting
  • An embodiment of the present invention provides an active line array sound calibration system, including a terminal and an active line array sound, wherein the terminal and the active line array sound are connected through a network;
  • the active line array sound includes a subwoofer unit and more than one full frequency unit;
  • the subwoofer unit and each of the full frequency units comprise: a network signal input interface and a DSP digital signal processor;
  • the terminal Transmitting, by the terminal, an audio signal to the active line array audio through a network; the subwoofer unit and the respective full frequency units receive the audio signal through respective network signal input interfaces, and pass the DSP digital signal processor pair The audio signal is processed and the corresponding sound signal is output to obtain a test sound signal; the terminal receives the test sound signal, compares the test sound signal and the audio signal, and obtains corresponding sound field calibration information, which is The active line array audio transmits the sound field calibration information; the active line array sound receives the sound field calibration information to separately adjust the subwoofer unit and each full frequency unit according to the sound field calibration information.
  • the sound field adjustment can be performed by the above-mentioned active line array acoustic sound field adjustment method, so that the tuning efficiency is greatly improved.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

一种有源线阵音响声场调校的方法、装置和有源线阵音响系统。有源线阵音响包括一个超低音单元以及一个以上的全频单元，方法包括步骤：通过超低音单元和全频单元分别接收终端通过网络发送的一音频信号(S101)；通过超低音单元和全频单元分别输出的音频信号对应的声音信号，根据超低音单元和全频单元输出的声音信号得到一测试声音信号(S102)；接收终端通过网络发送的声场调校信息，根据声场调校信息对超低音单元和各个全频单元进行调校；声场调校信息通过比较音频信号与测试声音信号得到(S103)。直接针对有源线阵音响的输出效果，得到声场的调节信息，无需根据技术人员的经验调节，有利于提高有源线阵音响的声场调校效率。

Description

有源线阵音响声场调校的方法、装置及系统 技术领域
本发明涉及音响技术领域，特别是涉及一种有源线阵音响声场调校的方法、装置及系统。
背景技术
目前，大型的晚会、剧院以及户外演出，大多使用线阵音响，线阵音响是通过多个音响单元线性阵列而成，其扩音系统是普通音响无法比拟的。但是，线阵音响也存在一定的问题，线阵音响的各个音响单元之间，存在着声音的干涉，若处理不当，则会使整个线阵音响的音质变差，因此，对于线阵音响的调音是至关重要的。传统的线阵音响的调音，只是对线阵音响做一些简单的高低分频和频率响应补偿，通过这个方法调节不仅耗费时间长，效率低下，同时也很难达到理想的音质。
发明内容
基于此，提供一种有源线阵音响声场调校的方法和系统，解决有源线阵音响声场调校效率低的问题。
一种有源线阵音响声场调校的方法，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；所述方法包括步骤：
通过所述超低音单元和所述全频单元分别接收终端通过网络发送的一音频信号；
通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号；
接收终端通过网络发送的声场调校信息，根据所述声场调校信息对超低音单元和各个全频单元进行调校；所述声场调校信息通过比较所述音频信号与所 述测试声音信号得到。
一种有源线阵音响声场调校的方法，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；所述方法的步骤包括：
终端通过网络向有源线阵音响发送一音频信号；
有源线阵音响通过所述超低音单元和所述全频单元分别接收所述音频信号；并通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号；
终端接收所述测试声音信号，通过比较所述测试声音信号和所述音频信号，得到对应的声场调校信息，通过网络向所述有源线阵音响发送所述声场调校信息；
所述有源线阵音响接收所述声场调校信息，并根据所述声场调校信息对超低音单元和各个全频单元分别进行调校。
一种有源线阵音响调校的装置，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；
所述调校装置包括：
接收模块，用于通过所述超低音单元和所述全频单元分别接收终端通过网络发送的一音频信号；
转换模块，用于通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号；
调校模块，用于接收终端通过网络发送的声场调校信息，根据所述声场调校信息对超低音单元和各个全频单元进行调校；所述声场调校信息通过比较所述音频信号与所述测试声音信号得到。
一种有源线阵音响调校系统，包括终端和有源线阵音响，所述终端和有源线阵音响通过网络连接；
所述有源线阵音响包括一个超低音单元和一个以上的全频单元；
所述超低音单元和所述各个全频单元均包括：网络信号输入接口和DSP数 字信号处理器；
终端通过网络向所述有源线阵音响发送音频信号；所述超低音单元和所述各个全频单元通过各自的网络信号输入接口接收所述音频信号，并通过所述DSP数字信号处理器对音频信号进行处理并输出对应的声音信号，得到一测试声音信号；
终端接收所述测试声音信号，比较所述测试声音信号和所述音频信号，得到对应的声场调校信息，通过网络向所述有源线阵音响发送所述声场调校信息；
所述有源线阵音响接收所述声场调校信息，以根据所述声场调校信息对超低音单元和各个全频单元分别进行调校。
上述有源线阵音响声场调校的方法、装置和有源线阵音响系统，通过超低音单元和全频单元分别接收终端通过网络发送的音频信号，并输出音频信号对应的声音信号，根据输出的声音信号得到一测试声音信号，终端通过比较测试声音信号和音频信号，得到声场调校信息并发送给有源线阵音响，以此远程调校所述有源线阵音响的超低音单元和所述全频单元，本发明的上述方案，直接针对有源线阵音响的输出效果，得到声场的调节信息，无需根据技术人员的经验调节，大大提高声场调节的效率，得到理想的声场效果。
附图说明
图1为一实施例中有源线阵音响声场调校的方法的示意性流程图；
图2为另一实施例中有源线阵音响声场调校的方法的示意性流程图；
图3为一实施例中有源线阵音响声场调校的装置的示意性结构图；
图4为一实施例中有源线阵音响调校系统的示意性结构图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及取得的效果，下面结合附图及较佳实施例，对本发明实施例的技术方案，进行清楚和完整的描述。
图1为一实施例中有源线阵音响声场调校的方法的示意性流程图，如图1 所示，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；所述方法包括步骤：
S101，通过所述超低音单元和所述全频单元分别接收终端通过网络发送的一音频信号。
超低音单元可以通过分频输出超低频段的声音信号，全频单元可以输出全频信号，超低频单元和全频单元均可输入网络信号。在本步骤中，超低音单元和全频单元都接收终端通过网络发送的音频信号，其中，该音频信号为测试有源线阵音响输出声场效果的数据信号。
S102，通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号。
在本步骤中，超低音单元和全频单元接收到音频信号之后，通过一定的处理，输出音频信号对应的声音信号，由于超低频单元和全频单元输出声音的频带不同，因此，将超低频单元和全频单元输出的声音信号结合，便可得到测试声音信号，其中，测试声音信号为音频信号对应的人耳可听到的声音信号。
S103，接收终端通过网络发送的声场调校信息，根据所述声场调校信息对超低音单元和各个全频单元进行调校；所述声场调校信息通过比较所述音频信号与所述测试声音信号得到。
在本步骤中，通过比较测试用的音频信号与测试声音信号，可以得到声场调校信息，根据声场调校信息，即可对超低频单元和各个全频单元进行调校，从而改变有源线阵音响的声场效果。
根据本实施例的方案，在进行有源线阵音响的声场调校时，接收终端通过网络发送的音频信号，根据音频信号输出对应的测试声音信号，然后比较测试声音信号和音频信号，得到声场调校信息，根据声场调校信息，对超低音单元和各个全频单元进行调校，通过这种调节方式，直接针对有源线阵音响的输出效果，得到声场的调节信息，无需根据技术人员的经验调节，大大提高声场调节的效率，得到理想的声场效果。
在一实施例中，通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号的步骤，包括：通过所述超低音单元和所述全频单元分别对所述音频信号进行发生器选择、输入均衡调节、分频网络调节、输出均衡调节、延时调节处理和/或功率放大处理，输出对应的声音信号。
本实施例的方案，以进行声场调节前的设置，对音频信号进行处理，其中，处理过程包括发生器选择、输入均衡调节、分频网络调节、输出均衡调节、延时调节处理和/或功率放大处理，得到各个单元输出对应的声音信号，优选的，在输出对应的声音信号之前，将处理后的音频信号进行滤波操作。
在一实施例中，声场调校信息包括第一调校信息和第二调校信息；第一调校信息和第二调校信息均包括：发生器选择信息、输入均衡调节信息、分频网络调节信息、输出均衡调节信息、延时调节处理信息中的一种以上。
优选的，根据所述声场调校信息对超低音单元和全频单元进行调校的步骤包括：
根据所述第一调校信息对所述超低音单元的发生器、输入均衡、分频网络、输出均衡和/或延时模块进行调校。
根据所述第二调校信息对各个全频单元的发生器、输入均衡、分频网络、输出均衡和/或延时模块进行调校。
本实施例的方案，通过第一调校信息和第二调校信息，分别对超低音单元和全频单元进行调校，其中，第一调节信息和第二调节信息均包括：发生器选择信息、输入均衡调节信息、分频网络调节信息、输出均衡调节信息、延时调节处理信息中的一种以上。根据相应的调节信息，对超低音单元和全频单元进行调校，使再次播放效果趋于理想。
优选的，对超低音单元和全频单元的发生器进行调校的步骤包括：对超低音单元和全频单元发生器的发生器信号进行调节，所述发生器信号包括：白噪声、粉噪声、扫频信号；对超低音单元和全频单元的输入均衡进行调校的步骤包括：对超低音单元和全频单元箱体的频率响应曲线进行补偿；对超低音单元和全频单元的分频网络进行调校的步骤包括：对超低音单元的低通滤波的衰减 斜率、分频点进行调节；对各个全频单元的高通滤波的衰减斜率、分频点以及带通增益进行调节；对超低音单元和全频单元的输出均衡进行调校的步骤包括：对超低音单元和全频单元预设频点、增益以及带宽进行调节；对超低音单元和全频单元的延时模块进行调校的步骤包括：调节超低音单元和全频单元输出声音信号的时间。
图2为另一实施例中有源线阵音响声场调校的方法的示意性流程图，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元，如图2所示，所述方法的步骤包括：
S201，终端通过网络向有源线阵音响发送一音频信号。
S202，有源线阵音响通过所述超低音单元和所述全频单元分别接收所述音频信号；并通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号。
S203，终端接收所述测试声音信号，通过比较所述测试声音信号和所述音频信号，得到对应的声场调校信息，通过网络向所述有源线阵音响发送所述声场调校信息。
S204，述有源线阵音响接收所述声场调校信息，并根据所述声场调校信息对超低音单元和各个全频单元分别进行调校。
根据本实施例的方案，通过终端产生音频信号，通过网络发送给有源线阵音响，有源线阵音响接收音频信号后，输出测试声音信号，在终端中通过对比分析测试声音信号和音频信号，得到声场调校信息，根据声场调校信息，进行声场的调校，调校效率高。
在一实施例中，通过比较所述测试声音信号和所述音频信号，得到对应的声场调校信息的步骤，可以包括：将所述测试声音信号转换为模拟音频信号，比较所述模拟音频信号的频率曲线和所述音频信号的频率曲线，得到对应的声场调校信息。
在本实施中，先将测试声音信号转换为模拟音频信号，然后终端通过分析 模拟音频信号的频率曲线和音频信号的频率曲线的差异，得到修正结果，即声场的调校信息。
以下，结合一具体实施例，对有源线阵音响声场调校的方法进行说明。
S301，终端生成测试用的音频信号，并将音频信号通过网络发送给有源线阵音响。
S302，有源线阵音响接收测试用的音频信号，并通过超低音单元和全频单元内置的电子芯片处理，分别输出一频段的声音信号，结合超低音单元和全频单元输出的声音信号，得到一测试声音信号，其中，该测试声音信号为人耳可听到的声音信号。
S303，终端接收测试声音信号，具体可以在有源线阵音响安装的现场设置一声音采集设备，通过声音采集设备将声音信号转换为模拟音频信号，通过网络传回终端中，终端通过比较传回的模拟音频信号和测试用的音频信号，得到声场调校信息，并将声场调校信息通过网络发送给有源线阵音响。
S304，有源线阵音响中的全频单元和超低音单元分别接收声场调校信息，通过改变内置电子芯片的参数，可以实现如下环节的处理：发生器、输入均衡、分频网络、输出均衡以及延时模块。
S305，有源线阵音响中的全频单元和超低音单元分别解析声场调校信息，得到声场调校信息包含的内容，声场调节信息包含的内容包括：发生器选择信息、输入均衡调节信息、分频网络调节信息、输出均衡调节信息、延时调节处理信息中的一种以上。
S306，根据解析得到的声场调校信息实现有源线阵音响中的全频单元和超低音单元的调节，以实现有源线阵音响的声场调节。例如，声场调节信息包括发生器选择信息和分频网络调节信息，根据发生器选择信息，对发生器进行调节，具体为选择白噪声、粉噪声以及扫频信号等发生器信号中的一种；根据分频网络调节信息，对分频网络进行调节，具体对超低音单元的低通滤波的衰减斜率、分频点进行调节，对各个全频单元的高通滤波的衰减斜率、分频点以及带通增益进行调节。
S307，根据需要重复上述S301-S306的步骤，直到有源线阵音响输出的声场趋于理想。
基于与上述实施例中的有源线阵音响声场调校的方法相同的思想，本发明还提供有源线阵音响的调校装置，该装置可用于执行上述有源线阵音响声场调校的方法。为了便于说明，有源线阵音响的调校装置实施例的结构示意图中，仅仅示出了与本发明实施例相关的部分，本领域技术人员可以理解，图示结构并不构成对系统的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
图4为一实施例中有源线阵音响调校的装置示意性结构图，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；如图4所示，所述调校装置包括：
接收模块41，用于通过所述超低音单元和所述全频单元分别接收终端通过网络发送的一音频信号。
转换模块42，用于通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号。
调校模块43，用于接收终端通过网络发送的声场调校信息，根据所述声场调校信息对超低音单元和各个全频单元进行调校；所述声场调校信息通过比较所述音频信号与所述测试声音信号得到。
在本实施例中，接收模块41可以接收终端通过网络发送的音频信号，并在转换模块42中，将音频信号转换为对应的测试声音信号，调校模块43接收声场调校信息，并对有源线阵音响的声场进行调校。通过本实施例的方案，可以提高有源线阵音响声场调校的效率，使有源线阵音响的声场效果趋于理想。
在一实施例中，所述转换模块42还用于通过所述超低音单元和所述全频单元分别对所述音频信号进行发生器选择、输入均衡调节、分频网络调节、输出均衡调节、延时调节处理和/或功率放大处理，输出对应的声音信号。
本实施例的方案，转换模块42以进行声场调校前的设置，对音频信号进行 处理，其中，处理过程包括发生器选择、输入均衡调节、分频网络调节、输出均衡调节、延时调节处理和/或功率放大处理，优选的，在输出对应的声音信号之前，将处理后的音频信号进行滤波操作。
在一实施例中，声场调校信息包括第一调校信息和第二调校信息；第一调校信息和第二调校信息均包括：发生器选择信息、输入均衡调节信息、分频网络调节信息、输出均衡调节信息、延时调节处理信息中的一种以上；
优选的，所述调校模块43还用于根据所述第一调校信息对所述超低音单元的发生器、输入均衡、分频网络、输出均衡和/或延时模块进行调校，以及根据所述第二调校信息对各个全频单元的发生器、输入均衡、分频网络、输出均衡和/或延时模块进行调校。
本实施例的方案，通过第一调校信息和第二调校信息，调校模块43分别对超低音单元和全频单元进行调校，其中，第一调节信息和第二调节信息均包括：发生器选择信息、输入均衡调节信息、分频网络调节信息、输出均衡调节信息、延时调节处理信息中的一种以上。根据相应的调节信息，对超低音单元和全频单元进行调校，使再次播放效果趋于理想。
优选的，调校模块43对超低音单元和全频单元的发生器进行调校的步骤包括：对超低音单元和全频单元发生器的发生器信号进行调节，所述发生器信号包括：白噪声、粉噪声、扫频信号；对超低音单元和全频单元的输入均衡进行调校的步骤包括：对超低音单元和全频单元箱体的频率响应曲线进行补偿；对超低音单元和全频单元的分频网络进行调校的步骤包括：对超低音单元的低通滤波的衰减斜率、分频点进行调节；对各个全频单元的高通滤波的衰减斜率、分频点以及带通增益进行调节；对超低音单元和全频单元的输出均衡进行调校的步骤包括：对超低音单元和全频单元预设频点、增益以及带宽进行调节；对超低音单元和全频单元的延时模块进行调校的步骤包括：调节超低音单元和全频单元输出声音信号的时间。
本发明实施例提供一种有源线阵音响调校系统，包括终端和有源线阵音响，所述终端和有源线阵音响通过网络连接；
所述有源线阵音响包括一个超低音单元和一个以上的全频单元；
所述超低音单元和所述各个全频单元均包括：网络信号输入接口和DSP数字信号处理器；
终端通过网络向所述有源线阵音响发送音频信号；所述超低音单元和所述各个全频单元通过各自的网络信号输入接口接收所述音频信号，并通过所述DSP数字信号处理器对音频信号进行处理并输出对应的声音信号，得到一测试声音信号；终端接收所述测试声音信号，比较所述测试声音信号和所述音频信号，得到对应的声场调校信息，通过网络向所述有源线阵音响发送所述声场调校信息；所述有源线阵音响接收所述声场调校信息，以根据所述声场调校信息对超低音单元和各个全频单元分别进行调校。
本实施例的有源线阵音响调校系统，可以通过上述有源线阵音响声场调校的方法进行声场调校，使调音的效率大大提高。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (9)

  1. 一种有源线阵音响声场调校的方法，其特征在于，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；
    所述方法包括步骤：
    通过所述超低音单元和所述全频单元分别接收终端通过网络发送的一音频信号；
    通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号；
    接收终端通过网络发送的声场调校信息，根据所述声场调校信息对超低音单元和各个全频单元进行调校；所述声场调校信息通过比较所述音频信号与所述测试声音信号得到。
  2. 根据权利要求1所述的有源线阵音响声场调校的方法，其特征在于，通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号的步骤，包括：
    所述超低音单元和所述全频单元分别对所述音频信号进行发生器选择、输入均衡调节、分频网络调节、输出均衡调节、延时调节处理和/或功率放大处理，输出对应的声音信号。
  3. 根据权利要求2所述的有源线阵音响声场调校的方法，其特征在于，所述声场调校信息包括第一调校信息和第二调校信息；
    第一调校信息和第二调校信息均包括：发生器选择信息、输入均衡调节信息、分频网络调节信息、输出均衡调节信息、延时调节处理信息中的一种以上；
    所述根据所述声场调校信息对超低音单元和全频单元进行调校的步骤，包括：
    根据所述第一调校信息对所述超低音单元的发生器、输入均衡、分频网络、输出均衡和/或延时模块进行调校；
    根据所述第二调校信息对各个全频单元的发生器、输入均衡、分频网络、 输出均衡和/或延时模块进行调校。
  4. 根据权利要求3所述的有源线阵音响声场调校的方法，其特征在于，
    对超低音单元和全频单元的发生器进行调校的步骤包括：对超低音单元和全频单元发生器的发生器信号进行调节，所述发生器信号包括：白噪声、粉噪声、扫频信号；
    对超低音单元和全频单元的输入均衡进行调校的步骤包括：对超低音单元和全频单元箱体的频率响应曲线进行补偿；
    对超低音单元和全频单元的分频网络进行调校的步骤包括：对超低音单元的低通滤波的衰减斜率、分频点进行调节；对各个全频单元的高通滤波的衰减斜率、分频点以及带通增益进行调节；
    对超低音单元和全频单元的输出均衡进行调校的步骤包括：对超低音单元和全频单元预设频点、增益以及带宽进行调节；
    对超低音单元和全频单元的延时模块进行调校的步骤包括：调节超低音单元和全频单元输出声音信号的时间。
  5. 根据权利要求2-4任一项所述的有源线阵音响声场调校的方法，其特征在于，所述超低音单元和所述全频单元分别对所述音频信号进行发生器选择、输入均衡调节、分频网络调节、输出均衡调节、延时调节处理和/或功率放大处理之后，还包括：对处理后的音频信号进行滤波操作，然后输出对应的声音信号。
  6. 一种有源线阵音响声场调校的方法，其特征在于，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；
    所述方法的步骤包括：
    终端通过网络向有源线阵音响发送一音频信号；
    有源线阵音响通过所述超低音单元和所述全频单元分别接收所述音频信号；并通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到并输出一测试声音信号；
    终端接收所述测试声音信号，比较所述测试声音信号和所述音频信号，得到对应的声场调校信息，通过网络向所述有源线阵音响发送所述声场调校信息；
    所述有源线阵音响接收所述声场调校信息，并根据所述声场调校信息对超低音单元和各个全频单元分别进行调校。
  7. 根据权利要求6所述的有源线阵音响声场调校的方法，其特征在于，所述通过比较所述测试声音信号和所述音频信号，得到对应的声场调校信息的步骤，包括：
    将所述测试声音信号转换为模拟音频信号，比较所述模拟音频信号的频率曲线和所述音频信号的频率曲线，得到对应的声场调校信息。
  8. 一种有源线阵音响调校的装置，其特征在于，所述有源线阵音响包括一个超低音单元以及一个以上的全频单元；
    所述装置包括：
    接收模块，用于通过所述超低音单元和所述全频单元分别接收终端通过网络发送的一音频信号；
    转换模块，用于通过所述超低音单元和所述全频单元分别输出的所述音频信号对应的声音信号，根据所述超低音单元和所述全频单元输出的声音信号得到一测试声音信号；
    调校模块，用于接收终端通过网络发送的声场调校信息，根据所述声场调校信息对超低音单元和各个全频单元进行调校；所述声场调校信息通过比较所述音频信号与所述测试声音信号得到。
  9. 一种有源线阵音响调校系统，其特征在于，包括终端和有源线阵音响，所述终端和有源线阵音响通过网络连接；
    所述有源线阵音响包括一个超低音单元和一个以上的全频单元；
    所述超低音单元和所述各个全频单元均包括：网络信号输入接口和DSP数字信号处理器；
    终端通过网络向所述有源线阵音响发送音频信号；所述超低音单元和所述各个全频单元通过各自的网络信号输入接口接收所述音频信号，并通过所述 DSP数字信号处理器对音频信号进行处理并输出对应的声音信号，得到一测试声音信号；
    终端接收所述测试声音信号，比较所述测试声音信号和所述音频信号，得到对应的声场调校信息，通过网络向所述有源线阵音响发送所述声场调校信息；
    所述有源线阵音响接收所述声场调校信息，以根据所述声场调校信息对超低音单元和各个全频单元分别进行调校。
PCT/CN2017/093466 2017-07-07 2017-07-19 有源线阵音响声场调校的方法、装置及系统 WO2019006779A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710550844.7 2017-07-07
CN201710550844.7A CN107396274A (zh) 2017-07-07 2017-07-07 有源线阵音响声场调校的方法、装置及系统

Publications (1)

Publication Number Publication Date
WO2019006779A1 true WO2019006779A1 (zh) 2019-01-10

Family

ID=60334491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/093466 WO2019006779A1 (zh) 2017-07-07 2017-07-19 有源线阵音响声场调校的方法、装置及系统

Country Status (2)

Country Link
CN (1) CN107396274A (zh)
WO (1) WO2019006779A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107948862B (zh) * 2017-12-26 2020-08-11 广州励丰文化科技股份有限公司 一种音箱设备的自动补偿延时方法及系统
CN107948864B (zh) * 2017-12-29 2020-07-07 广州励丰文化科技股份有限公司 一种基于音箱设备的延时补偿方法及系统
CN108513243B (zh) * 2018-02-28 2020-12-08 成都星环科技有限公司 一种智能声场校准系统
CN112511966B (zh) * 2020-11-06 2021-12-17 华南理工大学 一种车载立体声重放的自适应主动分频方法
CN112929808A (zh) * 2021-02-05 2021-06-08 四川湖山电器股份有限公司 检测校园广播播音设备能否正常工作的方法、模块及系统
CN116582792B (zh) * 2023-07-07 2023-09-26 深圳市湖山科技有限公司 一种无束缚远近场自由可控的音响装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000354300A (ja) * 1999-06-11 2000-12-19 Accuphase Laboratory Inc マルチチャンネルオーディオ再生装置
CN101137250A (zh) * 2007-10-08 2008-03-05 卢灿光 一种车载音响自适应音场调节方法及装置
JP2008245123A (ja) * 2007-03-28 2008-10-09 Clarion Co Ltd 音場補正装置、音場補正方法及び制御プログラム
CN201138867Y (zh) * 2008-01-09 2008-10-22 龚立风 一种有源线性阵列音响
US20090274307A1 (en) * 2005-07-11 2009-11-05 Pioneer Corporation Audio system
CN102611962A (zh) * 2012-02-09 2012-07-25 苏州上声电子有限公司 基于无线通信网络的扬声器阵列空域响应均衡与声场控制方法和装置
CN103220597A (zh) * 2013-03-29 2013-07-24 苏州上声电子有限公司 车内声场均衡装置
CN103414991A (zh) * 2013-05-21 2013-11-27 杭州联汇数字科技有限公司 一种室内扩声系统自适应调整方法
JP2016123059A (ja) * 2014-12-25 2016-07-07 ヤマハ株式会社 信号生成装置、および端末装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101282592A (zh) * 2008-05-15 2008-10-08 华硕电脑股份有限公司 具有音场调校功能的音响系统以及音场调校的方法
CN101355753A (zh) * 2008-07-10 2009-01-28 深圳华为通信技术有限公司 一种音频信号调节方法及移动终端
KR20100066949A (ko) * 2008-12-10 2010-06-18 삼성전자주식회사 오디오 기기 및 그의 신호보정방법
CN104918198A (zh) * 2015-05-11 2015-09-16 阔地教育科技有限公司 一种基于在线课堂的音频校准方法及装置
CN206024078U (zh) * 2016-09-12 2017-03-15 广州声德电子有限公司 四进四出fir音箱处理器
CN106303799A (zh) * 2016-09-12 2017-01-04 广州声德电子有限公司 四进八出fir音箱处理器及其控制方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000354300A (ja) * 1999-06-11 2000-12-19 Accuphase Laboratory Inc マルチチャンネルオーディオ再生装置
US20090274307A1 (en) * 2005-07-11 2009-11-05 Pioneer Corporation Audio system
JP2008245123A (ja) * 2007-03-28 2008-10-09 Clarion Co Ltd 音場補正装置、音場補正方法及び制御プログラム
CN101137250A (zh) * 2007-10-08 2008-03-05 卢灿光 一种车载音响自适应音场调节方法及装置
CN201138867Y (zh) * 2008-01-09 2008-10-22 龚立风 一种有源线性阵列音响
CN102611962A (zh) * 2012-02-09 2012-07-25 苏州上声电子有限公司 基于无线通信网络的扬声器阵列空域响应均衡与声场控制方法和装置
CN103220597A (zh) * 2013-03-29 2013-07-24 苏州上声电子有限公司 车内声场均衡装置
CN103414991A (zh) * 2013-05-21 2013-11-27 杭州联汇数字科技有限公司 一种室内扩声系统自适应调整方法
JP2016123059A (ja) * 2014-12-25 2016-07-07 ヤマハ株式会社 信号生成装置、および端末装置

Also Published As

Publication number Publication date
CN107396274A (zh) 2017-11-24

Similar Documents

Publication Publication Date Title
WO2019006779A1 (zh) 有源线阵音响声场调校的方法、装置及系统
KR102154877B1 (ko) 협대역폭 디지털 신호 처리 시스템 및 방법
US10009705B2 (en) Audio enhancement for head-mounted speakers
US9955261B2 (en) Method and apparatus for adjusting a cross-over frequency of a loudspeaker
CN106713794B (zh) 一种调节音频均衡的方法及提供均衡调节的音频系统
KR20120080593A (ko) 청각 검사 및 보정 방법
CN104604254A (zh) 声音处理装置、方法和程序
CN109905808B (zh) 用于调节智能语音设备的方法和装置
JP2012231391A (ja) 音信号処理装置、及び音信号処理方法
US20200335078A1 (en) Audio adjustment method and associated audio adjustment device for active noise cancellation
CN115604628A (zh) 一种基于耳机喇叭频响的滤波器校准方法及装置
CN102137316B (zh) 数字高保真多通道麦克风系统
KR101606546B1 (ko) 무선 마이크를 이용한 원격 음향 조율 시스템 및 그 방법
TW201916006A (zh) 音訊處理裝置及方法
US9930441B1 (en) Audio playing system
US10136241B1 (en) Audio playing system capable of automatically personally compensating
KR102393176B1 (ko) 최적의 음향 설정장치 및 그 방법
CN104936082A (zh) 声音输出装置及其等化器调整方法
KR102508413B1 (ko) 주파수 스펙트럼 보정을 위한 오디오 신호 처리 방법 및 장치
US10524052B2 (en) Dominant sub-band determination
US8934996B2 (en) Transmission apparatus and transmission method
JP2005318521A (ja) 増幅装置
RU2265951C2 (ru) Способ и устройство для коррекции частотных искажений (автоматический эквалайзер)
TWI837748B (zh) 耳機裝置、其補償方法及電腦程式產品
US20240015448A1 (en) Hearing-aid audio control method and system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17916892

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17916892

Country of ref document: EP

Kind code of ref document: A1