Console programs and/or libraries for working with sound. Noise reduction, sound straightening

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andry2011-03-09 17:36:18

linux

andry, 2011-03-09 17:36:18

Good afternoon,

Interested in such programs. It is necessary to skip the sound that the user is recording in order to make the most candy. The project is in PHP, there are no problems wrapping other languages through the console.

Google only gives the -nr option to ffmpeg, but that's not it at all.

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4 answer(s)

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Sergey Ermakov, 2011-03-09
@andry

SoX is a cross-platform console utility that allows you to convert audio files from format to format, as well as process sound with various effects. There is equalization, noise reduction. There is even distortion.
SoX feature list

S

Sergey Ermakov, 2011-03-09
@blew

Ecasound offers a console mode. Sound processing, LADSPA effects, multitrack mixing, etc. are supported.
Pecl has an ancient wrapper over Ecasound.

J

Jazzist, 2011-03-10
@Jazzist

SOX + LADSPA. By the way, SOX expands and can be easily finished for specific needs. The code is wonderful.

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andry, 2011-03-10
@andry

I'm sorry the question is right there. Is there a formal sound quality metric. Not bitrate, framerate, etc., but something that speaks about the level of noise, or just fantasize - audibility or speech intelligibility? I found it by video, but I can't find it by sound. From a physical point of view, I understand that this is practically not realistic in general terms, but you never know where progress has come.