Comparison of audio formats?

[Fontain]

Which different audio formats are available when ripping a DVD, and what are there advantages?

I havn't been able to find an easy to understand comparison of this topic, so maybe you can help or direct me to the proper place.

Thank you!

[KpeX]

Remember that you don't have to reencode audio at all, DVD's common AC3 format is already compressed (lossy). What formats are available depends on what format you're encoding to, which I didn't see in your post. As far as general PC playback, there are a wide range of formats available. There are some tests here (http://audio.samharris.us/test/) that are quite good, and you can use all of those formats for video with the exception of Musepack, which may change in the future. I'd say right now most users ripping DVD are either keeping the original AC3 for surround sound or encoding to MP3 for 2 channel, it's old and well tested and compatible with almost every container format. Vorbis does well at low bitrates, and AAC appears to be the format of the future, especially now with HE-AAC to cover low bitrates. hope this makes sense and helps,

[Tuning]

You have mp3/Ogg/AAC/Ac3/DTS/WMA ..etc for audio part of the movie.But be aware that Ogg/AAC is not supported with AVI.And u might have played the mp3/Ogg/WMA in ur favourite audio player.The advantage of these formats is better quality in smaller size.Among these Ac3[Dolby Digital]/DTS is known to every body and obviously it has advantage of multichannel sound.The other formats capable of multichannel[5.1] are Ogg vorbis/WMA/AAC.If u use these codecs for ur rips, u certainly need to install the DS[Direct Show]Filters of respective ones.(Except for mp3-it already installed with windows).
And one more for quality considerations u can refer the sticky/FAQ sections in this audio encoding forum.

:D Tuning

[DSPguru]

assuming you want to transcode a 448kbps ac3 into smaller lossy format, my personal recommendation would be, in short :
1. to create AVI - encode to stereo mp3
2. to create stereo OGM/MKV - encode to stereo vorbis
3. to create multichannel OGM/MKV/MP4 - encode to 5.1aac LC or HE, depending on the quality/space you can efford.

reasoning :
1. old and working method. existence of some stand-alone AVI+MP3 players
2. vorbis is a free codec & there are lots of free good vorbis encoding tools
3. aac is more advanced than ac3 & vorbis in represnting multichannel audio.

[echooff]

DvdAudio Explained (http://www.dvddemystified.com/dvdfaq.html#3.6.2)


Try this

[Sirber]

you guys always forget realaudio :devil: :p

[bond]

Originally posted by Fontain
I havn't been able to find an easy to understand comparison of this topic, so maybe you can help or direct me to the proper placeyou can find uptodate, reliable and independend comparisons of the quality of the most popular audio codecs here (thanks to rjamorim):
at 128kbps (http://audio.samharris.us/test/128extension/results.html)
at 64kbps (http://audio.samharris.us/test/64test/results.html)

(@sirber: the last comparison clearly shows that there are at least 3 formats which are better than realaudio/cook with 95% confidence at low bitrates like 64kbps ;) )

[KpeX]

My link must have been too subtle for Bond ;)

[Tuning]

@Sirber
you guys always forget realaudio

Idea!(Yellow bulb-..blinks-blinks..):D
Then use only real audio in Surreal UI(Funny.....fun?..?).All newbies will be forced to use it...popularity increases...New forum....etc(Happy then? :D )


:D Tuning