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A little help with audio

 
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Mandy Nelson
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PostPosted: Tue Nov 03, 2009 12:44 pm    Post subject: A little help with audio Reply with quote

Boy oh boy...do any of you work in flash? Client is putting the audio in and it's coming out, um, horrible. Before I spend hours trying to change things on my end I thought I'd check in here. I have all of the original files in 48k, 16 bit, mono wav. Is there an ideal size they should be so that they don't sound so tinny or distorted?
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todd ellis
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PostPosted: Tue Nov 03, 2009 1:12 pm    Post subject: Reply with quote

flash typically likes uncompressed audio formats like .wav of .aiff - so i don't see a problem there. as the files are imported into flash they are converted/compressed to .mp3 - so the issue may lie there.

sorry - not much more help than that, except to say i doubt it's your audio causing the malfunction.
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Deirdre
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PostPosted: Tue Nov 03, 2009 1:12 pm    Post subject: Reply with quote

Here's what Flash Help says:

Quote:
Sounds can use large amounts of disk space and RAM. However, mp3 sound data is compressed and smaller than WAV or AIFF sound data. Generally, when using WAV or AIFF files, it’s best to use 16-22 kHz mono sounds (stereo uses twice as much data as mono), but Flash can import either 8- or 16-bit sounds at sample rates of 11, 22, or 44 kHz. Sounds recorded in formats that are not multiples of 11 kHz (such as 8, 32, or 96 kHz) are resampled when imported into Flash. Flash can convert sounds to lower sample rates on export.
If you want to add effects to sounds in Flash, it’s best to import 16-bit sounds. If you have limited RAM, keep your sound clips short or work with 8-bit sounds instead of 16‑bit sounds.


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Mandy Nelson
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PostPosted: Tue Nov 03, 2009 1:23 pm    Post subject: Reply with quote

I thank you!
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todd ellis
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PostPosted: Tue Nov 03, 2009 1:41 pm    Post subject: Reply with quote

so, does 44k, 16-bit help?


i didn't know about the "divisible by 11" thing. that's interesting.
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bobsouer
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PostPosted: Tue Nov 03, 2009 1:59 pm    Post subject: Reply with quote

Mandy,

The first thing that came to mind for me, too was converting your audio to 44.1Khz first and then re-import.
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Eddie Eagle
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PostPosted: Tue Nov 03, 2009 2:07 pm    Post subject: Reply with quote

I've been using the Allock video to flash converter and it works pretty well. I get good audio out of it. It allows audio to be converted from 80 kbps to 192 kbps and a range of 11025 to 44100.
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Chris Ratliff
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PostPosted: Tue Nov 03, 2009 7:22 pm    Post subject: Reply with quote

Mandy, I'm afraid I can't help but I can offer another view. I "re-did" (pardon the southern slang, it comes out when I blog and message) a web flash for a national product. The original that was used, which was offered for reference, really really really sounded like junk. Probably much like what you're talking about. That tells me some clients don't care what it sound like. Hey, I don't question. I just give the best I've got and let them worry about the how to's.
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bransom
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PostPosted: Wed Nov 04, 2009 7:30 am    Post subject: Reply with quote

Hi, Mandy,

I do a lot of work in Flash and one thing to watch out for is Flash's default "Publish" settings — it defaults to truly awful audio quality, treating final compressed size as far more important than quality. To fix:

Click the File menu, choose Publish Settings. In the window that opens, click the Flash tab (it doesn't look like a tab but it is). You'll see settings for Audio Stream and Audio Event. Even a small bump up in the bit rate of these, say from the default 16 kbps to 24 kbps, can make a big difference. When possible, I choose 48 kbps or higher.

And, as others have said, when importing to Flash, start with a WAV or AIF file.

Hope this helps...
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Mandy Nelson
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PostPosted: Wed Nov 04, 2009 8:09 am    Post subject: Reply with quote

Bob, I could just hug you! I forwarded the message to the client and he was ever so grateful. He's a full-on animation guy who is only just starting to design more stuff with sound (much to my happiness because he's amazing and likes working with me).

Thanks to all for your taking the time to answer. I knew I was coming to the right place. *warm fuzzy feeling*
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bransom
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PostPosted: Wed Nov 04, 2009 8:25 am    Post subject: Reply with quote

Hi, Mandy,

I'm glad it was an easy fix!

Working with audio in Flash always requires a bit of trial and error. File sizes DO matter on the web, and the audio file is usually the single biggest item in the Flash file. My usual method of working with it is to set the Publish settings pretty high so at least during the animation phase, I don't have to listen to crap. When it comes time to really begin testing, I start dialing down quality and watching the effect on file size. There's usually a semi-happy median that can be reached where the audio isn't too awful and the file will still load in a reasonable time.
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Deirdre
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PostPosted: Wed Nov 04, 2009 8:28 am    Post subject: Reply with quote

Yay! I knew there were options for audio resolution, but I couldn't remember where they were.

Thanks for this spiffy info!
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Mandy Nelson
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PostPosted: Thu Nov 05, 2009 9:44 am    Post subject: Reply with quote

Phew - I'm glad to say I got a sneak peak a bit ago and it is sooooo much better sounding now. Thanks again.
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