audio from video

[ecos]

hello!
how do I extract the audio of a video file?
thanks!

[bat999]

a video file

Which video file?

[ronmaz]

Type your question in the search box and click on search

[netmask56]

A bit more info would help - avi, mkv, mpg, flv, vob, etc etc different solutions.
Best to post a mediainfo report (text mode) and then we will all know...

[Baldrick]

Pazera Free Audio Extractor supports most formats.

[misermidas]

If you are not an expert you may use Coyote free video converter (http://www.koyotesoft.com/).
Be aware :this is not real free ware and you will get a lot of useless ware when you download it if you don't care.
You will be able to easily convert from many video formats to mp3 (I suppose this is what you want to do).
the free version has an output size limit of 1 GB ,but that doesn't matter for audio.

If you are an expert it will be better to use some video demultiplexing tool an an audio reencoding tool if needed.

VLC can do it but I do not like the converting tool of VLC.

[misermidas]

If you are not an expert you may use Coyote free video converter (http://www.koyotesoft.com/).
Be aware :this is not real free ware and you will get a lot of useless ware when you download it if you don't care.
You will be able to easily convert from many video formats to mp3 (I suppose this is what you want to do).
the free version has an 1 GB output size limit, but that doesn't matter for audio.

If you are an expert it will be better to use some video demultiplexing tool an an audio reencoding tool if needed.

VLC can do it but I do not like the converting tool of VLC.

[ecos]

I didnt thought that there are so many ways to do one simple thing

A bit more info would help - avi, mkv, mpg, flv, vob, etc etc different solutions.
Best to post a mediainfo report (text mode) and then we will all know...

General
Complete name :	\...\M2U645.MPG
Format :	MPEG-PS
File size :	649 MiB
Duration :	24mn 54s
Overall bit rate mode :	Variable
Overall bit rate :	3 691 Kbps

Video
ID :	224 (0xE0)
Format :	MPEG Video
Format version :	Version 2
Format profile :	Main@Main
Format settings, BVOP :	Yes
Format settings, Matrix :	Custom
Format settings, GOP :	M=3, N=12
Duration :	24mn 34s
Bit rate mode :	Variable
Bit rate :	3 170 Kbps
Maximum bit rate :	9 100 Kbps
Width :	720 pixels
Height :	576 pixels
Display aspect ratio :	16:9
Frame rate :	25.000 fps
Standard :	PAL
Color space :	YUV
Chroma subsampling :	4:2:0
Bit depth :	8 bits
Scan type :	Interlaced
Scan order :	Top Field First
Compression mode :	Lossy
Bits/(Pixel*Frame) :	0.306
Stream size :	557 MiB (86%)

Audio
ID :	189 (0xBD)-128 (0x80)
Format :	AC-3
Format/Info :	Audio Coding 3
Mode extension :	CM (complete main)
Muxing mode :	DVD-Video
Duration :	24mn 33s
Bit rate mode :	Constant
Bit rate :	448 Kbps
Channel(s) :	6 channels
Channel positions :	Front: L C R, Side: L R, LFE
Sampling rate :	48.0 KHz
Bit depth :	16 bits
Compression mode :	Lossy
Delay relative to video :	-112ms
Stream size :	78.7 MiB (12%)

[Baldrick]

Tsmuxer, add the mpg, select the ac3 audio track, demux. Or https://www.videohelp.com/tools/sections/video-de-multiplexers

[ecos]

Tsmuxer, add the mpg, select the ac3 audio track, demux. Or https://www.videohelp.com/tools/sections/video-de-multiplexers

thanks!

now i need to convert it to a more mainstream audio format, as lossless as possible :S

any tool?

[olyteddy]

AVI DeMux is a pretty versatile converter. Load your video, set the audio to what you want for output and click 'Save' in the audio drop down menu. Remember to add the extension to the filename as AVI DeMux doesn't automatically do that.

[transporterfan]

FormatFactory will do most video to audio, audio to audio conversions.

[Cornucopia]

Tsmuxer, add the mpg, select the ac3 audio track, demux. Or https://www.videohelp.com/tools/sections/video-de-multiplexers

thanks!

now i need to convert it to a more mainstream audio format, as lossless as possible :S

any tool?

Ac3 isn't common enough for you? Just get an Ac3 decoder for Acm/Dshow and you're done - ready to listen. Avoiding transcoding is as lossless as you can get.

Scott

[misermidas]

To ecos : only demultiplexing is lossless .
.MP3 is a most mainstream format , you may have good quality by choosing high bit-rate such as 256 kbits/second or higher . Quality will also depend on your re-encoding software with the same bit-rate ,but I can't tell you more about this.

To olyteddy : Thanks ,I didn't know avi demux could output audio files,I will try next time.