发明公开
- 专利标题: SYSTEMS AND METHODS FOR PROCESSING AN AUDIO SIGNAL FOR REPLAY ON AN AUDIO DEVICE
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申请号: EP19180587.8申请日: 2019-06-17
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公开(公告)号: EP3595172A3公开(公告)日: 2020-04-22
- 发明人: Clark, Nicholas R.
- 申请人: Mimi Hearing Technologies GmbH
- 申请人地址: Boxhagener Strasse 82 10245 Berlin DE
- 专利权人: Mimi Hearing Technologies GmbH
- 当前专利权人: Mimi Hearing Technologies GmbH
- 当前专利权人地址: Boxhagener Strasse 82 10245 Berlin DE
- 代理机构: MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB
- 优先权: EP18178873 20180620; US201816019230 20180626; US201916244727 20190110; EP19152078 20190116; US201916440169 20190613
- 主分类号: H03G9/00
- IPC分类号: H03G9/00 ; H03G9/02 ; H03G9/18 ; H04R25/00 ; G10H1/16 ; H03G11/00
摘要:
Systems and methods for processing an audio signal are provided for replay on an audio device. An audio signal is spectrally decomposed into a plurality of subband signals using band pass filters. Each of the subband signals are provided to a respective modulator and subsequently, from the modulator output, provided to a respective first processing path that includes a first dynamic range compressor, DRC. Each subband signal is feedforward compressed by the respective first DRC to obtain a feedforward-compressed subband signal, wherein the first DRC is slowed relative to an instantaneous DRC. Subsequently, each feedforward-compressed subband signal is provided to a second processing path that includes a second DRC, wherein the feedforward-compressed subband signal is compressed by the respective second DRC and outputted to the respective modulator. Modulation of the subband signals is then performed in dependence on the output of the second processing path. Finally, the feedforward-compressed subband signals are recombined.
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