Opened 9 years ago

Closed 6 years ago

#2178 closed enhancement (needs_more_info)

audio denoise filter

Reported by: rain Owned by:
Priority: wish Component: avfilter
Version: git-master Keywords: denoise
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no


Summary of the bug:
How to reproduce:

% ffplay -f oss -i /dev/dsp
ffmpeg version git-2012-12-14-5c78a81
built on ubuntu

Change History (6)

comment:1 by rain, 9 years ago

audio denoise

comment:2 by Carl Eugen Hoyos, 9 years ago

Component: FFplayavfilter
Keywords: denoise added
Priority: normalwish
Type: taskenhancement

Since at least for me it is not entirely clear if a "denoise filter" is something reasonably defined: Could you either add some explanation what the filter should do or point to a documentation (or an example filter)?

in reply to:  2 comment:3 by rain, 9 years ago

For example,ffmpeg filter:“aformat”.
Convert the input audio to one of the specified formats.

But I want one filter which can reduce the audio noise,eliminate the broken sound and echo.

The input audio is captured from the pc's microphone,and the output audio is very clear.

If you want to know all the filters of the ffmpeg,you can use "ffmpeg -filters".

comment:4 by Ganesh Ajjanagadde, 7 years ago

It should be clear that such a general purpose filter cannot exist: one has to know what kind of noise you are looking for in order to filter it out. Different algorithms will work well against different kinds of noise.

A quick internet search will show a number of approaches taken for this. Do you want something like Audacity's approach set:

comment:5 by Ganesh Ajjanagadde, 7 years ago

Cc: added

comment:6 by Elon Musk, 6 years ago

Resolution: needs_more_info
Status: newclosed

Feel free to reopen, once you provide input audio files with noise.

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