I'd like to improve the sound quality of a 8 kbps audiobook that I can get for free from www.audiobooksforfree.com. They charge $$$ for higher quality files (ranging from 16kbps to 48kbps), but not for the free 8kbps.
Can downsampled files be edited to sound "upsampled"???
I started out by playing around with the filters in GoldWave (e.g. Effect, Filter....) but don't know much about this topic or the filters....
The reduced quality files sound a little more garbled than the original files.
I've attached an example of an 8kbps file
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Soopafresh - - - Thanks for that site
To actually answer your question (seeing as nobody actually did),
No, once it's been downsampled to that low of a bitrate, it's pretty much destroyed.
I would not even pay for a 48kbps mp3 file no matter what it was
To get an audio file down that small, information has to be removed, once it is gone, it is gone forever!!!!!!Originally a member since 2001, LONG LIVE TARAN's!!!
Actually, Noahtuck, it (48kbps) shouldn't be bad at all IF:
1. It's actually just speech, and
2. It's a mono stream, and
3. It's been preprocessed correctly (gaps in speech actually replaced w/ digital silence, remainder bandlimited and dynamic-range-compressed).
(VBR doesn't hurt either--unless your player can't handle it)
I've done numerous files this way (as an online VoiceOver sampler for my old company).
But I agree with you about 8kbps--GIGO. Nothing you can do about it except use it as a guide track for synthetic speech (which is WAY too much work for most people).
Excellent feedbacks, thanks.
http://librivox.org should keep me busy for a while...
I've already started on the "Popular History of Ireland" audiobook....
P.S. A quick google search for librivox.org resulted in this find:
Bookmark this link:
Where these other book resources were unveiled:
....Original Top 10 list with full reviews (here and here)
Gutenberg Project Top 100 - Popular books from the oldest producer of free ebooks on the Internet
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