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The Slip - Artworks
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Podcasting Legal guide
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Autres articles (96)
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MediaSPIP 0.1 Beta version
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To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
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Sur d’autres sites (7492)
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Convert audio files to mp3 using ffmpeg [closed]
24 mars, par Hrishikesh -Rishi- ChoudhariI need to convert audio files to mp3 using ffmpeg.



When I write the command as
ffmpeg -i audio.ogg -acodec mp3 newfile.mp3
, I get the error :


FFmpeg version 0.5.2, Copyright (c) 2000-2009 Fabrice Bellard, et al.
 configuration: 
 libavutil 49.15. 0 / 49.15. 0
 libavcodec 52.20. 1 / 52.20. 1
 libavformat 52.31. 0 / 52.31. 0
 libavdevice 52. 1. 0 / 52. 1. 0
 built on Jun 24 2010 14:56:20, gcc: 4.4.1
Input #0, mp3, from 'ZHRE.mp3':
 Duration: 00:04:12.52, start: 0.000000, bitrate: 208 kb/s
 Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 256 kb/s
Output #0, mp3, to 'audio.mp3':
 Stream #0.0: Audio: 0x0000, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
 Stream #0.0 -> #0.0
Unsupported codec for output stream #0.0




I also ran this command :



ffmpeg -formats | grep mp3




and got this in response :



FFmpeg version 0.5.2, Copyright (c) 2000-2009 Fabrice Bellard, et al.
 configuration: 
 libavutil 49.15. 0 / 49.15. 0
 libavcodec 52.20. 1 / 52.20. 1
 libavformat 52.31. 0 / 52.31. 0
 libavdevice 52. 1. 0 / 52. 1. 0
 built on Jun 24 2010 14:56:20, gcc: 4.4.1
 DE mp3 MPEG audio layer 3
 D A mp3 MP3 (MPEG audio layer 3)
 D A mp3adu ADU (Application Data Unit) MP3 (MPEG audio layer 3)
 D A mp3on4 MP3onMP4
 text2movsub remove_extra noise mov2textsub mp3decomp mp3comp mjpegadump imxdump h264_mp4toannexb dump_extra




I guess that the mp3 codec isn't installed. Am I on the right track here ?


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Audacity vocal removal failed when ffmpeg-conversion was involved
10 mars 2018, par fyangI downloaded some songs coded with FLAC, and Audacity could remove the vocals quite well.
When I downloaded songs coded with ALAC, I must use ffmpeg to convert them to some other forms because Audacity didn’t recognise .m4a files.
I used the command
ffmpeg -i "song 01.m4a" -f flac "song 01.flac"
. Now Audacity could load the song, but its vocal removal failed to remove the vocals.I tried again with this command in order to be precise,
ffmpeg -i "song 01.m4a" -af "pan=stereo|c0=c0|c1=c1" -f flac "song 01.flac"
, and vocal removal did not work either.I tried to do it manually by splitting, inverting and changing both channels to mono, but the vocals were still there.
I think the problem lies with the ffmpeg conversion step. Is there any fix ? Thanks !
Below is the result of the conversion :
ffmpeg -i "song 01.m4a" -af "pan=stereo|c0=c0|c1=c1" -f flac "song 01.flac"
ffmpeg version N-90143-gb6652f5100 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libmfx --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth
libavutil 56. 7.101 / 56. 7.101
libavcodec 58. 12.102 / 58. 12.102
libavformat 58. 9.100 / 58. 9.100
libavdevice 58. 2.100 / 58. 2.100
libavfilter 7. 12.100 / 7. 12.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000019f2b258000] stream 0, timescale not set
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'song 01.m4a':
Metadata:
major_brand : M4A
minor_version : 0
compatible_brands: M4A mp42isom
creation_time : 2009-12-27T00:15:23.000000Z
track : 1/10
genre :
album :
artist :
comment : ExactAudioCopy v0.95b4
DISCID :
iTunNORM : 00000F32 00000E1D 0000547D 00005B93 0006C3CA 0006C43E 00007FF8 00007FFF 00058227 0003593B
title : song 01
encoder : iTunes 9.0.2.25
date : 2005
album_artist :
lyrics :
Duration: 00:08:10.84, start: 0.000000, bitrate: 921 kb/s
Stream #0:0(und): Audio: alac (alac / 0x63616C61), 44100 Hz, stereo, s16p, 920 kb/s (default)
Metadata:
creation_time : 2009-12-27T00:15:23.000000Z
Stream #0:1: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 300x300 [SAR 100:100 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
Stream mapping:
Stream #0:0 -> #0:0 (alac (native) -> flac (native))
Press [q] to stop, [?] for help
[Parsed_pan_0 @ 0000019f2b2a6fc0] Pure channel mapping detected: 0 1
Output #0, flac, to 'song 01.flac':
Metadata:
major_brand : M4A
minor_version : 0
compatible_brands: M4A mp42isom
lyrics :
TRACKNUMBER : 1/10
genre :
album :
artist :
DESCRIPTION : ExactAudioCopy v0.95b4
DISCID :
iTunNORM : 00000F32 00000E1D 0000547D 00005B93 0006C3CA 0006C43E 00007FF8 00007FFF 00058227 0003593B
title : song 01
ALBUMARTIST :
date : 2005
encoder : Lavf58.9.100
Stream #0:0(und): Audio: flac, 44100 Hz, stereo, s16, 128 kb/s (default)
Metadata:
creation_time : 2009-12-27T00:15:23.000000Z
encoder : Lavc58.12.102 flac
size= 54518kB time=00:08:10.84 bitrate= 909.9kbits/s speed= 35x
video:0kB audio:54508kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.018294% -
Convert Process Output to Progressbar C# [on hold]
28 mars 2018, par adrifcastrSo I am using FFMPEG to convert a audio file, and I need to get a progressbar to show the current conversion process. So as reading through Stackoverflow I found this, which uses a Streamreader to get the complete duration of the file and the current progress into a string. This didn’t work for me, I assumed it’s because I am using WPF. So can someone help me to get those values and then use them to calculate the percentage and show it with a Progressbar ?
Below are samples of what’s displayed in FFMPEG’s output stream.
//Complete Duration of the Audio file being converted
Duration: 06:41:03.68, start: 0.000000, bitrate: 64 kb/s
//Current conversion progress
size= 1197kB time=00:02:02.14 bitrate= 80.3kbits/s speed=42.9x