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How to use EqualizerFilter in real-time ? #61

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Mitra-M opened this issue Mar 5, 2016 · 4 comments
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How to use EqualizerFilter in real-time ? #61

Mitra-M opened this issue Mar 5, 2016 · 4 comments

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@Mitra-M
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Mitra-M commented Mar 5, 2016

I need to apply a high-pass filter on input AudioEndPoint devices (microphones ).

Please tell me should I write a custom DSP filter? or can I use EqualizerFilter for it?

Thanks in advance.

and special thanks to autors of cscore.
(sorry for my english)

@filoe filoe added the question label Mar 5, 2016
@filoe filoe self-assigned this Mar 5, 2016
@filoe
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filoe commented Mar 5, 2016

The Equalizer you are talking about is not a high-pass filter. But internally it uses the BiQuad filter which can be used to create a high-pass filter. We can add the high-pass filter as feature request if you want to.

@Mitra-M
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Mitra-M commented Mar 5, 2016

aha ,Thank you so much.
it is very good if you add High/Mid/Low filters to cscore. and add a sample to apply them on audio of input / output devices.
thanks again.

@filoe filoe added this to the CSCore 1.1 release milestone Mar 5, 2016
@filoe
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filoe commented Mar 5, 2016

Gonna implement it in the next few days. Should not be a big deal.

filoe added a commit that referenced this issue Mar 24, 2016
…elf- and Highshelf-filter. Peak already existed (see Equalizer class). See #61. Dsp filters based on the implementation of earlevel.com.
@filoe
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filoe commented Mar 24, 2016

I've implemented the requested filters and a little playback example. Apply it to input devices the same way as every other audio-filter. For example, take a look at the "Recorder"-sample.

@filoe filoe closed this as completed Apr 10, 2016
opcon pushed a commit to opcon/cscore that referenced this issue May 15, 2016
…elf- and Highshelf-filter. Peak already existed (see Equalizer class). See filoe#61. Dsp filters based on the implementation of earlevel.com.
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