Mudanças entre as edições de "Audio 5.1"
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} | } | ||
| − | * http://linux.p2pforum.it/wiki/Hardware_supportato#Abilitare_l.27audio_5.1 | + | * retirado de http://linux.p2pforum.it/wiki/Hardware_supportato#Abilitare_l.27audio_5.1 |
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| + | configurando arquivo no formato ac3 com multicanal (de 1 para 5) | ||
| + | |||
| + | com ffmpeg: | ||
| + | ffmpeg -i l.wav -i r.wav -i sl.wav -i sr.wav -i c.wav -ab 192k -ar \ | ||
| + | 48000 -ac 5 -acodec ac3 -y surround.ac3 | ||
| + | |||
| + | $ apt-cache show aften | ||
| + | Description: audio AC3 encoder | ||
| + | Aften is an audio encoder which generates compressed audio streams based on | ||
| + | ATSC A/52 specification. This type of audio is also known as AC-3 or Dolby® | ||
| + | Digital and is one of the audio codecs used in DVD-Video content. | ||
| + | Bugs: mailto:marillat@debian.org | ||
| + | Homepage: http://aften.sourceforge.net/ | ||
| + | |||
| + | |||
| + | usando: | ||
| + | sox -M L.wav R.wav C.wav SL.wav SR.wav surround.wav | ||
| + | aften -b 448 -cmix 0 -smix 0 -dsur 2 -acmod 7 surround.wav surround.ac3 | ||
| + | |||
| + | sobre os parâmetros usados acima: | ||
| + | * -b 448 — Bitrate in kbps (4 channels: 384 kbps, 5 channels: 448 kbps) | ||
| + | * -smix 2 — Surround mix level ( 0: -3dB, 1: -6dB, 2: 0 ) | ||
| + | * -dsur 2 — (2: Dolby surround encoded, 0: not indicated, 1: not Dolby surround encoded) | ||
| + | * -acmod 7 — Audio coding mode, or channel order (7: L,R,C,SL,SR) | ||
| + | |||
| + | com mplayer. | ||
| + | mencoder -ovc copy video.avi -audiofile surround.ac3 -oac copy -o newvideo.avi | ||
| + | |||
| + | assistindo em mplayer com 6 canais, usando jack | ||
| + | mplayer newvideo.avi -ao jack -channels 6 | ||
| + | |||
| + | |||
| + | * retirado de [http://parumi.wordpress.com/2007/12/12/how-to-create-multichannel-51-ac3-audio-and-video-in-linux/ How to create multichannel (5.1) AC3 audio (and video) in Linux] | ||
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Mais sobre audio 5.1 no computador | Mais sobre audio 5.1 no computador | ||
Edição das 16h35min de 2 de maio de 2009
~/.asoundrc
pcm.!default {
type plug
slave.pcm "surround51"
slave.channels 6
route_policy duplicate
}
configurando arquivo no formato ac3 com multicanal (de 1 para 5)
com ffmpeg:
ffmpeg -i l.wav -i r.wav -i sl.wav -i sr.wav -i c.wav -ab 192k -ar \ 48000 -ac 5 -acodec ac3 -y surround.ac3
$ apt-cache show aften
Description: audio AC3 encoder Aften is an audio encoder which generates compressed audio streams based on ATSC A/52 specification. This type of audio is also known as AC-3 or Dolby® Digital and is one of the audio codecs used in DVD-Video content. Bugs: mailto:marillat@debian.org Homepage: http://aften.sourceforge.net/
usando:
sox -M L.wav R.wav C.wav SL.wav SR.wav surround.wav aften -b 448 -cmix 0 -smix 0 -dsur 2 -acmod 7 surround.wav surround.ac3
sobre os parâmetros usados acima:
- -b 448 — Bitrate in kbps (4 channels: 384 kbps, 5 channels: 448 kbps)
- -smix 2 — Surround mix level ( 0: -3dB, 1: -6dB, 2: 0 )
- -dsur 2 — (2: Dolby surround encoded, 0: not indicated, 1: not Dolby surround encoded)
- -acmod 7 — Audio coding mode, or channel order (7: L,R,C,SL,SR)
com mplayer.
mencoder -ovc copy video.avi -audiofile surround.ac3 -oac copy -o newvideo.avi
assistindo em mplayer com 6 canais, usando jack
mplayer newvideo.avi -ao jack -channels 6
Mais sobre audio 5.1 no computador
Surround Sound
