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Wednesday 25.11.2009 / 13:18
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afterdawn.com > forums > cdr and digital audio discussion > audio > changing mp3 file bitrate.
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Changing mp3 file bitrate.
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coachop
Junior Member
_ 		4. October 2009 @ 18:50 _ Link to this message    Send private message to this user   
Is there a way to change the bit rate of a mp3 file without re-ripping the cds?? I have some audiobook files that I forgot to change the rip bitrate prior to ripping & they are using alot of hardrive space.
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attar
AfterDawn Addict
_ 		5. October 2009 @ 06:25 _ Link to this message    Send private message to this user   
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Mez
Senior Member
_ 		5. October 2009 @ 08:54 _ Link to this message    Send private message to this user   
Any converter will do it. However, if you increase the bit rate the app just makes up the data to increase the bit rate since there is no way for it to know what was really there. It will either sound the same or worse but the file will be much bigger. So reducing the bitrate is the the only way you should go. Be prepared to have conciderable quality loss. You lose quality converting any lossy file. You can lose very hearable quality going from 128 to 128.
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coachop
Junior Member
_ 		5. October 2009 @ 11:48 _ Link to this message    Send private message to this user   
I'll try it thanks.
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Mez
Senior Member
_ 		5. October 2009 @ 13:16 _ Link to this message    Send private message to this user   
So you want to make them smaller? What are you starting with? If you are starting with lossless you can do whatever. I prefer a VBR mp3 because they have the best compression to quality.

Are these audio books? The US library stores then at only 25 BR. I can't hear the difference between 25 and 128.
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coachop
Junior Member
_ 		6. October 2009 @ 02:10 _ Link to this message    Send private message to this user   
No they are audio books on cds I ripped to my hardrive & forgot to change the bitrate before I did them. So I have all these books that were ripped at 192kbs. I don't want them taking up all that space & it's too many to re-rip.I'm going to reduce it 32kbs & join them into just a few tracks per book.
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Mez
Senior Member
_ 		6. October 2009 @ 10:14 _ Link to this message    Send private message to this user   
I do the same except that I do not join any tracks. What is the purpose of that?
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coachop
Junior Member
_ 		6. October 2009 @ 11:45 _ Link to this message    Send private message to this user   
Alot of the audiobook cds have up to 99 tracks some are 10 seconds or up to 2 mins long for bookmarking. I don't need or want that many tracks for each cd. So I join them & reduce a book that may have as many as 12 or more cds down to 4 or 5 tracks & use my mp3 players book mark feature to save my place. NetLibrary does this so when you checkout a book file it's one big file. I'm doing the same thing mine are just broken up into a few parts.Doing a fast-forward on a book that is one file 20hrs. long can take a while but 2-4 is easier & faster
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Mez
Senior Member
_ 		6. October 2009 @ 12:16 _ Link to this message    Send private message to this user   
I have an extensive audio book library and never saw 2 minute tracks before. Mine have all been in chapters which is perfect for me. I can almost understand the effort to clean that up. Other than it is work and I don't think I would care since I always turn each book into a play list to insure the order. I can move the files by the play list with my software.
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coachop
Junior Member
_ 		7. October 2009 @ 01:18 _ Link to this message    Send private message to this user   
Yeah ,it is work but worth it to me since I have more than a few that were done in that manner.Drives me nuts opening Media Player with all those damn files for one cd & the book may be as many as 8 or more. I'd much rather just have 8 tracks instead of 800.
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Mez
Senior Member
_ 		7. October 2009 @ 07:29 _ Link to this message    Send private message to this user   
Media Player is not advised. Not only is it crap but it sends information out as to what your are doing and robot apps check out your computer. I recomend Media Monkey. It is full featured and there is a great free version.
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coachop
Junior Member
_ 		7. October 2009 @ 11:35 _ Link to this message    Send private message to this user   
Tried It don't like it. Besides Media Player has no internet access on my computer.The one with my music ,books ect in not online.
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Mez
Senior Member
_ 		7. October 2009 @ 20:28 _ Link to this message    Send private message to this user   
That is real smart.
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