ffmpeg does not recognize any audio filters

08
2014-07

Sudh

I am trying to reduce noise from the audio files I extracted from videos. The objective is to recognize speech so I was trying to filter out the frequencies above 300 and below 3000hz. I tried to use equalizer filter by issuing command:

ffmpeg -f lavfi -i "amovie=input.wav,equalizer=f=1300:width_type=h:width=1000" output.wav

but it gives me error :

C:\Users\Sudh\Downloads>ffmpeg -f lavfi -i "amovie=input.wav,equalizer=f=300:w
th_type=h:width=3000" output.wav >output.txt
ffmpeg version git-2012-03-03-663d727-xuggle-4.0 Copyright (c) 2000-2012 the F
peg developers
  built on Mar 20 2012 16:24:58 with gcc 4.5.2
  configuration: --prefix=/d/desarrollo/xuggle --extra-version=xuggle-4.0 --ex
a-cflags=-I/d/desarrollo/xuggle/xuggle_v5/xuggle-xuggler-win/build/native/x86_
-w64-mingw32/captive/stage/d/desarrollo/xuggle/include --extra-ldflags=-L/d/de
rrollo/xuggle/xuggle_v5/xuggle-xuggler-win/build/native/x86_64-w64-mingw32/cap
ve/stage/d/desarrollo/xuggle/lib --enable-shared --enable-gpl --enable-nonfree
-enable-libx264 --enable-version3 --enable-cross-compile --cross-prefix= --arc
x86_64 --target-os=mingw32 --enable-libmp3lame --enable-libvorbis --enable-lib
eora --enable-libspeex --enable-libvo-aacenc --enable-libopencore-amrnb --enab
-libopencore-amrwb --enable-librtmp --enable-openssl --enable-zlib --enable-li
px
  libavutil      51. 41.100 / 51. 41.100
  libavcodec     54.  4.100 / 54.  4.100
  libavformat    54.  1.100 / 54.  1.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 62.101 /  2. 62.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  7.100 /  0.  7.100
  libpostproc    52.  0.100 / 52.  0.100
[wav @ 00000000006DB360] max_analyze_duration 5000000 reached at 5120000
[amovie @ 00000000006D9DF0] seek_point:0 format_name:(null) file_name:input.wa
stream_index:0
[lavfi @ 00000000006D97F0] No such filter: 'equalizer'
amovie=input.wav,equalizer=f=300:width_type=h:width=3000: Invalid argument

I tried to use bandreject filter too

ffmpeg -f lavfi -i "amovie=input.wav,equalizer=f=1300:width_type=h:width=1000" output.wav

but with the same result saying No such filter bandreject

What am I missing? ALso please let me know if there is a better way to reduce noise usiong ffmpeg.

Also I am using latest 64 bit static version from http://ffmpeg.zeranoe.com/builds/

Answers

Sudh

I found the solution, which was simply migrating to the new version of ffmpeg from http://ffmpeg.zeranoe.com/builds/ . Also make sure to restart the system and change environment variables to remove traces of older ffmpeg.

Related Question

Can't get ffmpeg to use frei0r on OSX (through homebrew)

osx ffmpeg homebrew

user861181

I am trying to get ffmpeg to use frei0r plugin and although I was able to get frei0r show up in filters list, I get the error:

 [frei0r @ 0x10331c1c0] Could not find module 'glow'
 Error initializing filter 'frei0r' with args 'glow:0.5'

I use homebrew. I got ffmpeg to build with --enable-frei0r --enable-filter=frei0r the instruction from this git:

https://github.com/mxcl/homebrew/commit/f63399c3d0241e7534e73b9fe9d4413b151414b9

But can't get to actually using the frei0r.

EDIT: Here is full output:

$ ffmpeg -i 1.mp4 -vf -vf frei0r=glow:0.5 output.mpg
 ffmpeg version 0.10 Copyright (c) 2000-2012 the FFmpeg developers  built on Mar  4 2012       11:47:02 with clang 3.0 (tags/Apple/clang-211.10.1)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/0.10 --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-libfreetype --cc=/usr/bin/clang --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --disable-ffplay --enable-frei0r --enable-filter=frei0r --enable-filter=frei0r_src --enable-libopencv
  libavutil      51. 34.101 / 51. 34.101
  libavcodec     53. 60.100 / 53. 60.100
  libavformat    53. 31.100 / 53. 31.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 60.100 /  2. 60.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  6.100 /  0.  6.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 2011-12-15 10:24:56
    encoder         : Lavf53.24.0
  Duration: 00:00:15.44, start: 0.000000, bitrate: 2736 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 2604 kb/s, 23.98 fps, 23.98 tbr, 48k tbn, 47.95 tbc
    Metadata:
      creation_time   : 2011-12-15 10:24:56
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 128 kb/s
    Metadata:
      creation_time   : 2011-12-15 10:24:56
      handler_name    : 
[NULL @ 0x7fcb9184a400] Unable to find a suitable output format for 'frei0r=glow:0.5'
frei0r=glow:0.5: Invalid argument

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ffmpeg does not recognize any audio filters