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shrinking audio files

post #1 of 4
10/29/03 at 5:13am
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Hey, my friend is a young pastor and he wants to record his sermons. He can create .wav files via his Tungston and he typically preaches for about 45 minutes. It creates about a 10 mb .wav file. He's got a Sager w/ Nero on it, and when he converts to mp3 or mp3pro, it only reduces the files size by about 100K.

What is the best free or inexpensive way to shrink these files for emailing? It's a sermon, so sound quality is not a real issues. I appreciate the help!
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post #2 of 4
10/29/03 at 5:29am
Not sure about that. The shrinkage you note is about what I get between wav and mp3 files. He could try to zip or rar them. I don't know how that fairs.

In any case, at 10 megs, he should get 60 or so sermons, a year's worth at least, on a CD. That's pretty good. I assume he wants to email them to folks. I just don't see that working all that well.

Maybe something with Kazaa, I don't download that way so I don't know what they do. Kinda hard to believe they actually download 10 meg files, its not so bad with cable broadband but dial-up would take forever. You'd get sick of the song before you downloaded it.

I'll see what I can find.
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post #3 of 4
10/29/03 at 5:46am
Since its just voice and you say he's not real concerned with the best audio reproduction, as long as he can clearly be understood, probably the best you can do is to drop the bit rate and the output sampling rate. He'd have to play around with that a bit to cut it down as much as he wanted and still get a usable product. You can do that with Neo-Audio. You can also play with the wave forms some, cut out unneeded portions of the spectrum with Audacity. You can get both of those by searching with Google. Neo-Audio is from the folks at Napster, I think. Audacity is just a bunch of crazies. But they are good programs. Audacity is sort of alpha/beta. There are some quirks and bugs, but nothing harmful I've found. Just make sure you have copies of anything you mess with.
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post #4 of 4
10/29/03 at 2:25pm

Re: shrinking audio files

Quote:
Originally posted by Investorguy
It creates about a 10 mb .wav file. He's got a Sager w/ Nero on it, and when he converts to mp3 or mp3pro, it only reduces the files size by about 100K.
If converting a 10MB .wav format file to a .mp3 format file only results in a 100k size decrease you are doing something wrong. A typical radio song between 3-5 minutes in length can be generalized at about 50MB .wav file let's say. Converting a 50MB .wav file to a .mp3 format file results in like a 5MB .mp3 file when using a 128 bitrate. A converted 10MB .wav file in .mp3 format should be around 1MB in size. Try another conversion program because something is very wrong with those figures you're quoting.
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