Splitting Sounds?
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Seph McMinnar
Registered User
Join date: 6 Oct 2008
Posts: 1
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04-14-2009 16:27
I'm trying to split sounds for a custom song I'm uploading for my SL violin. I used one sound splitting program but it ended up leaving gaps from .05 to .1 seconds long, and it make the song sounds terrible. Is there a program or method that will cut the sound chunks as closely and accurately as possible so that they flow properly when uploaded?
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Keira Wells
Blender Sculptor
Join date: 16 Mar 2008
Posts: 2,371
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04-14-2009 16:32
Audacity.
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Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
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04-14-2009 19:55
Almost any audio editing program will do the trick. Audacity and Goldwave are both good freebies. If you're looking to buy a program, I love Adobe Audition. Other popular choices are Sonar, SoundForge, and Cubase. All are overkill if the only thing you want to do is chop up a song, but all will certainly do the job.
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Gaia Clary
mesh weaver
Join date: 30 May 2007
Posts: 884
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04-15-2009 00:17
I recently have played with the sound system and i was running into a lot of very strange problems. I found that a song will only play correctly after all chunks have been fully downloaded. And frequently i can hear one of the chunks (the last one) repeating several times at random times after the whole song has played and finished. Interestingly others nearby often seam to NOT hear these repetitions. At other times they do but i don't . But i also found the situation where everybody could hear these artefacts.
I never found out, what exactly causes this problem and how to get rid of it. But i know that others have seen the same troubles. It may have to do with the SoundQueue which i use in order to let the adjacent chunks play "seamlessly"...
Until today i could not find any reliable solution but maybe someone here has got something at hand that really works ?
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Regan Flasheart
Adulterated content
Join date: 25 Nov 2005
Posts: 25
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04-20-2009 04:44
If others are hearing the sequence without errors, it may be a case of optimising the script.
There is a scripting function for preloading sounds to surrounding avatars' caches: llPreloadSound. With careful timing in the script to ensure the next part is played exactly as the first one ends, it should be possible to make it (almost) reliably seamless. (Certain scripting functions have a built in delay, llPreloadSound freezes the script for 1 second for example. Depending on how your script works, you may need to account for these built in delays in your timing calculations.)
+1 for Audacity. It's really excellent for SL sound editing.
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Amaranthim Talon
Voyager, Seeker, Curious
Join date: 14 Nov 2006
Posts: 12,032
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04-20-2009 13:25
Not to derail, but i have a wav sound to import into SL and it sd the bit rate was not appropriate for SL- will Audacity somehow helpme to compensate for that?
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"Yield to temptation. It may not pass your way again. " Robert A. Heinlein  http://talonfaire.blogspot.com/ Visit Talon Faire Main: http://slurl.com/secondlife/Misto%20Presto/216/21/155- Main Store XStreets: http://tinyurl.com/6r7ayn
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Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
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04-20-2009 15:38
Sounds for SL must be 16-bit stereo or mono, 44.1 KHz sampling. You can use any wave editor to resample the file at the proper depth and rate. Audacity will certainly do the job.
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Amaranthim Talon
Voyager, Seeker, Curious
Join date: 14 Nov 2006
Posts: 12,032
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04-21-2009 11:08
Thank you much 
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"Yield to temptation. It may not pass your way again. " Robert A. Heinlein  http://talonfaire.blogspot.com/ Visit Talon Faire Main: http://slurl.com/secondlife/Misto%20Presto/216/21/155- Main Store XStreets: http://tinyurl.com/6r7ayn
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Gaia Clary
mesh weaver
Join date: 30 May 2007
Posts: 884
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04-21-2009 13:52
From: Chosen Few Sounds for SL must be 16-bit stereo or mono, 44.1 KHz sampling. You can use any wave editor to resample the file at the proper depth and rate. Audacity will certainly do the job. I have been told, that stereo sounds uploaded to SL will be converted to mono. Do you know if that is true ?
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Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
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04-21-2009 14:35
I believe it is true, yes, Gaia. Presumably, it's to keep the file size as small as possible. There's really no need for stereo sound in SL.
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