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How to upload MP3???

Opeo Bluebird
Registered User
Join date: 28 Jul 2009
Posts: 15
11-10-2009 01:05
I made a 10 sec long mp3 file but it will not show up when i click upload sound. what's wrong?
Novis Dyrssen
Girl Geek
Join date: 6 May 2007
Posts: 1,452
11-10-2009 01:14
You cannot upload mp3s. You can only upload (I think) wma files in a very specific rate. Someone else might have a clue about the rate needed.
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Kenbro Utu
Registered User
Join date: 26 Sep 2006
Posts: 483
11-10-2009 01:19
You can only upload wav files.

From the Wiki: "As the Knowledge Base says, "Valid sounds are any .WAV file in standard PCM format, 16-bit/44.1kHz/mono or stereo (which will be converted to mono anyway), less than or exactly 10 seconds in length. (10.000 seconds is fine, but 10.001 will fail to upload."

You will also want to boost the gain, because all wav files seem to lose volume when uploaded to SL.
Opeo Bluebird
Registered User
Join date: 28 Jul 2009
Posts: 15
11-10-2009 01:49
The wav file didn;t show up either
Ralektra Breda
Template Painter
Join date: 7 Apr 2008
Posts: 1,875
11-10-2009 03:22
If you go to the video tutorials by Torley Linden, there is one on how to upload sound. If you can't find the tutorials, you can search for Torley on Youtube and find them that way.
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Taylor Lubezki
Bratty - Neko
Join date: 12 Aug 2007
Posts: 498
11-10-2009 06:52
From: Opeo Bluebird
The wav file didn;t show up either


There is more than one type of wav file.. Make sure you are saving it as a ACM not a PCM.. the bit rate is VERY important.. must be 44.1 and as was said before it can't be 10.001 seconds in length.. no more than 10.0.

If you tell me what audio software you are using for your editing I might be able to assist you further.
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Lear Cale
wordy bugger
Join date: 22 Aug 2007
Posts: 3,569
11-10-2009 08:46
From: Kenbro Utu
You will also want to boost the gain, because all wav files seem to lose volume when uploaded to SL.
They're attenuated by SL's sound control panel sliders and your distance (usually, your camera's distance) from the object emitting the sound. They're also attenuated by the object's script, if it uses a volume less than the maximum when it plays the sound.

You would want to first normalize (so the highest peak is just below full scale) and then perhaps either compress (so the quietest parts are louder) or else increase the level and apply a peak limiter (so you don't have any clipping).
Taylor Lubezki
Bratty - Neko
Join date: 12 Aug 2007
Posts: 498
11-10-2009 09:15
In Adobe Audition..

Normalize - Hard Limit -2db - Normalize - Dynamic process with Drum Machine Limiter.. That will give you a good clear loud wav file.

Here is Torley's Link http://www.youtube.com/watch?v=QBVmFafFatE
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Opeo Bluebird
Registered User
Join date: 28 Jul 2009
Posts: 15
11-10-2009 11:37
I am using Audacity... how do I change the sample rate?

edit: ahh never mind, i got it. :)
thanks for the help everyone ^-^
Taylor Lubezki
Bratty - Neko
Join date: 12 Aug 2007
Posts: 498
11-10-2009 11:42
This wiki would explain it better than I could.. I only use Audacity for light studio / on air work..

http://wiki.audacityteam.org/index.php?title=WAV

I'll look at it here in a second and see though..
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Taylor Lubezki
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Join date: 12 Aug 2007
Posts: 498
11-10-2009 11:48
It seems that your default sample rate should be correct.. However

Open the file and highlight it.. The left of the file in your edit window you will see your file name with a small drop down arrow..

Click the arrow

Then Set Rate...

Hope this helps..
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Lear Cale
wordy bugger
Join date: 22 Aug 2007
Posts: 3,569
11-11-2009 04:57
From: Taylor Lubezki
In Adobe Audition..

Normalize - Hard Limit -2db - Normalize
Or better yet, -.5dB or -.1dB. 0dB is ideal, for software that works correctly, but not all software does.

Normalizing to -2dB was excellent advice from a serious expert (Mr. Katz), but it applied to the ADAT days, where hardware was not perfect at catching peaks. It's all software now, and that bit of advice no longer applies.

However, some software does get confused by 0dBFS values. Hopefully none any more (it used to be an issue back in early 2000's), but no harm in being on the safe side.

In any case a 2 dB difference is audible but not as much as one might think. 3dB is equivalent to going from 100W to 200W, which is noticeably louder, but not as much as one might hope after springing for a new amp. (You have to have 10 times the power to be twice as loud.)
Lear Cale
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Join date: 22 Aug 2007
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11-11-2009 05:00
From: Opeo Bluebird
I am using Audacity... how do I change the sample rate?

edit: ahh never mind, i got it. :)
thanks for the help everyone ^-^
Audacity is probably good enough for SL audio. However, for a far better result at this particular task, try r8brain, which is free.

It's best to record at 44.1K in the first place, if possible.
Taylor Lubezki
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Join date: 12 Aug 2007
Posts: 498
11-11-2009 07:38
From: Lear Cale
Or better yet, -.5dB or -.1dB. 0dB is ideal, for software that works correctly, but not all software does.

Normalizing to -2dB was excellent advice from a serious expert (Mr. Katz), but it applied to the ADAT days, where hardware was not perfect at catching peaks. It's all software now, and that bit of advice no longer applies.

However, some software does get confused by 0dBFS values. Hopefully none any more (it used to be an issue back in early 2000's), but no harm in being on the safe side.

In any case a 2 dB difference is audible but not as much as one might think. 3dB is equivalent to going from 100W to 200W, which is noticeably louder, but not as much as one might hope after springing for a new amp. (You have to have 10 times the power to be twice as loud.)



In Adobe Audition you still want to use the -2db. That is advice from a few serious experts such as Dave Diamond, Dave Foxx. Was even advice given in R.A.P. Magazine for the Radio industry just a few months back. We do it on every spot we produce here in the studios.
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Lear Cale
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Join date: 22 Aug 2007
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11-11-2009 07:48
From: Taylor Lubezki
In Adobe Audition you still want to use the -2db. That is advice from a few serious experts such as Dave Diamond, Dave Foxx. Was even advice given in R.A.P. Magazine for the Radio industry just a few months back. We do it on every spot we produce here in the studios.
Oh, is Adobe broken?

I've never seen a good argument for this bit of advice, other than Bob Katz's. Feel free to point me to it.

And it's ludicrous that they recommend this for radio. Commercial material in general is so overcompressed and normalized to the highest level to make it seem loud, much to the detriment of the material. Do you really think they'll just throw away 2dB when they compress like hell to get nominal levels above -6dB or even higher? It may be advice, but it's not followed! And it's silly, without a technical justification.

Normalizing to -2dB would not reduce the damage they do by overcompressing, but would reduce the benefit they get from it (loudness).
Taylor Lubezki
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Join date: 12 Aug 2007
Posts: 498
11-11-2009 08:03
http://www.rapmag.com/index.aspx

The subscription isn't the cheapest in the world but it's a great source from the industries leading talents.

Edited to add.. You are not normalizing to -2db. You are hard limiting to -2db.. There is a difference. ;)
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Lear Cale
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Join date: 22 Aug 2007
Posts: 3,569
11-11-2009 08:22
From: Taylor Lubezki
http://www.rapmag.com/index.aspx

The subscription isn't the cheapest in the world but it's a great source from the industries leading talents.

Edited to add.. You are not normalizing to -2db. You are hard limiting to -2db.. There is a difference. ;)
Thanks, I didn't read carefully enough. I see what you mean now. But compression might still be in appropriate, depending on the nature of the material. This would be the best first cut, though, for simplicity.
Taylor Lubezki
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Join date: 12 Aug 2007
Posts: 498
11-11-2009 08:28
From: Lear Cale
Interesting -- does hard limiting to -2dB mean that no peaks go above -2dB? If so, it's still just a wast of 2dB of dynamic range.



Yes it limits everything from going over -2db.. It's a great way to prevent any over modulation. Of course if your personal preferences is to hard limit at 0db.. that's fine as well.. Everyone that does production has their own tips and tricks they use.. Just because one does it one way and another does it differently doesn't make either process wrong.
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Lear Cale
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Join date: 22 Aug 2007
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11-11-2009 08:29
From: Taylor Lubezki
Yes it limits everything from going over -2db.. It's a great way to prevent any over modulation. Of course if your personal preferences is to hard limit at 0db.. that's fine as well.. Everyone that does production has their own tips and tricks they use.. Just because one does it one way and another does it differently doesn't make either process wrong.
I figured it out a moment later and edited my post accordingly. Normalizing to 0 and then hard limiting to 0 would have (pretty much) no effect. ;)
Taylor Lubezki
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Join date: 12 Aug 2007
Posts: 498
11-11-2009 08:34
From: Lear Cale
I figured it out a moment later and edited my post accordingly. Normalizing to 0 and then hard limiting to 0 would have (pretty much) no effect. ;)



ROFL this is true.. :P
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