hi
what is the best compressed audio format to perform a seamless loop?
i tried mp3,ogg,wma but no luck....
is wav the only way?
thanks
seamless loop format question?
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- KVRAF
- 11839 posts since 23 Nov, 2004 from west of east
What do you mean, no luck? The secret of a seamless loop is how the beginning and end points are set and cross-fade. Format is irrelevant for this process.
We escape the trap of our own subjectivity by
perceiving neither black nor white but shades of grey
perceiving neither black nor white but shades of grey
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- KVRAF
- 4822 posts since 14 Mar, 2002 from Somewhere else, on principle
No, format is NOT irrelevant. There's something about MP3s, and other compressed formats, where there will be a gap in them when you try and loop them.eduardo_b wrote:What do you mean, no luck? The secret of a seamless loop is how the beginning and end points are set and cross-fade. Format is irrelevant for this process.
Last edited by John Vulich on Thu Dec 27, 2007 1:11 am, edited 1 time in total.
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- KVRAF
- 2910 posts since 26 Jul, 2005 from dun unda
MP3 = Not good for looping, but OK for slicing, as the format adds silent gaps to the file.
OGG can loop seamlessly, I know that. But it can't do CBR compression, but otherwise it's probably the best format to work with in terms of compressed loops.
OGG can loop seamlessly, I know that. But it can't do CBR compression, but otherwise it's probably the best format to work with in terms of compressed loops.
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- KVRAF
- 11839 posts since 23 Nov, 2004 from west of east
Even when the editing display shows no actual space? I thought back and realized that none of the loops I've ever done were with anything but wav files, but only because I would have no reason to convert them to mp3 files first. Nonetheless, I can't see how the format would alter the characteristics of a loop at the endpoints.John Vulich wrote:No, format is NOT irrelevant. There's something about MP3s, and other compressed formats, where there will be a gap in them when you try and loop them.eduardo_b wrote:What do you mean, no luck? The secret of a seamless loop is how the beginning and end points are set and cross-fade. Format is irrelevant for this process.
We escape the trap of our own subjectivity by
perceiving neither black nor white but shades of grey
perceiving neither black nor white but shades of grey
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- KVRAF
- 4822 posts since 14 Mar, 2002 from Somewhere else, on principle
Check this article out...playmuzic wrote:hi
what is the best compressed audio format to perform a seamless loop?
i tried mp3,ogg,wma but no luck....
http://www.compuphase.com/mp3/mp3loops.htm
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- KVRAF
- 4822 posts since 14 Mar, 2002 from Somewhere else, on principle
MP3s contain a gap at the beginning and end of the file. This is a know issue.eduardo_b wrote:Nonetheless, I can't see how the format would alter the characteristics of a loop at the endpoints.
Last edited by John Vulich on Thu Dec 27, 2007 8:43 am, edited 1 time in total.
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- KVRAF
- 7154 posts since 19 Apr, 2002 from Utah
MaliceX is exactly right here--on both counts.MaliceX wrote:MP3 = Not good for looping, but OK for slicing, as the format adds silent gaps to the file.
OGG can loop seamlessly, I know that. But it can't do CBR compression, but otherwise it's probably the best format to work with in terms of compressed loops.
As has been mentioned here, and for the reasons mentioned, the mp3 format is horrible for looping.
You might find Imageline's Edison software (available in FLStudio or in the Juicepack) useful. It does the OGG looping just fine. It was something I (as well as many others) pushed for in it a long time ago, and was pleased when Gol added it. It is the only program that I am aware of that does it easily, without a lot of conversion trickery.
--Sean
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- KVRist
- Topic Starter
- 48 posts since 13 Jun, 2005
thank you guys
actually i have done several experiment with mp3,ogg,wma.
none of them loop seamlessly.
they all have specific change in the beginning and the end of audio after encoding(compression).even ogg does,but it's the best one though.
so looks like i have to stick with microsoft wave
actually i have done several experiment with mp3,ogg,wma.
none of them loop seamlessly.
they all have specific change in the beginning and the end of audio after encoding(compression).even ogg does,but it's the best one though.
so looks like i have to stick with microsoft wave
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- KVRAF
- 2910 posts since 26 Jul, 2005 from dun unda
In my experience, OGG didn't exhibit inserted gaps in its audio streams, and REAPER clearly shows OGG looping in action as well. (IIRC) What are you using to test this?
But yeah, WAV is always the best in universal looping support.
But yeah, WAV is always the best in universal looping support.
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- KVRAF
- 4822 posts since 14 Mar, 2002 from Somewhere else, on principle
Did you even bother to read the link that I posted?playmuzic wrote:thank you guys
actually i have done several experiment with mp3,ogg,wma.
none of them loop seamlessly.
they all have specific change in the beginning and the end of audio after encoding(compression).even ogg does,but it's the best one though.
so looks like i have to stick with microsoft wave
http://www.compuphase.com/mp3/mp3loops.htm
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- KVRAF
- 6937 posts since 4 Jun, 2004 from Utrecht, Holland
A bump for that article. It explains very well what the problems with looping MP3's are, and how to overcome them. The playback engine has a critical role here too! So it might be useful to investigate what you're using to play back the MP3, and why looping-enabled MP3's don't work in your situation.John Vulich wrote:Did you even bother to read the link that I posted?
http://www.compuphase.com/mp3/mp3loops.htm
Anyway, I just stick with WAV files. They're larger, but easier to work with. Not very good to put on a website. But the article John referred to provided some good clues how to play a gapless looping MP3 on a website.
My MusicCalc is temporary offline.
We are the KVR collective. Resistance is futile. You will be assimilated.
We are the KVR collective. Resistance is futile. You will be assimilated.