I've got several "spoken word" mp3 files that I'd like to speed up. e.g. Windows media player has the option of playing 1.4x the normal play rate, but I'd like to fix it in the mp3 file so that my hardware mp3 player that doesn't have this ability uses this speed. Pref just by dropping frames, not pitch shifting.
Is there an app that does this? Bonus brownie points for Linux w/ GCC source code CLI apps since I'm running on a non-Intel Linux platform. [or Windows, if I must]
Thanks
Paul
Full Version: Speeding up mp3 files
most audio editors can do this (e.g. SoundForge on Windows), however that doesn't work on MP3s directly. if you have the source of your audiobooks at hand then this is a good option.
I'm not aware of any tools that can do this directly.
edit: http://www.hydrogenaudio.org/forums/index....topic=30931&hl=
I'm not aware of any tools that can do this directly.
edit: http://www.hydrogenaudio.org/forums/index....topic=30931&hl=
QUOTE (Digga @ Mar 30 2005, 08:32 AM)
most audio editors can do this (e.g. SoundForge on Windows), however that doesn't work on MP3s directly. if you have the source of your audiobooks at hand then this is a good option.
I'm not aware of any tools that can do this directly.
edit: http://www.hydrogenaudio.org/forums/index....topic=30931&hl=
I'm not aware of any tools that can do this directly.
edit: http://www.hydrogenaudio.org/forums/index....topic=30931&hl=
SoundTouch looks like the ticket - I'll give that a whirl.
Thanks!
Paul
QUOTE (paulhar @ Mar 30 2005, 08:47 AM)
SoundTouch looks like the ticket - I'll give that a whirl.
Thanks!
Paul
Thanks!
Paul
Doh - I didn't RTFM. It does WAV not MP3 so I guess I'm now looking for appropriate apps. I'm not sure if I can get lame to compile (though I'll give it a go), but is there a mp3 -> wav program?
Thanks
Paul
QUOTE (paulhar @ Mar 30 2005, 05:53 PM)
I'm not sure if I can get lame to compile (though I'll give it a go), but is there a mp3 -> wav program?
yep, lot's of 
you can do this with LAME too (via commandline or frontend) or any audio editor or foobar2k or...be aware though that decode and reencode (=transcoding) will reduce quality.
edit: spelling
On Linux, you can use SoX to decode, speed up and Lame to re-encode. Another option for decoding is mpg123 or mpg321. There will be quality loss, but whether it is audible or not will depend on what the bitrate of the MP3s are (and how you listen).
QUOTE (paulhar @ Mar 30 2005, 06:53 PM)
QUOTE (paulhar @ Mar 30 2005, 08:47 AM)
SoundTouch looks like the ticket - I'll give that a whirl.
Doh - I didn't RTFM. It does WAV not MP3 so I guess I'm now looking for appropriate apps. I'm not sure if I can get lame to compile (though I'll give it a go), but is there a mp3 -> wav program?
As stated in above mentioned thread, SoundTouch is available as a DSP plugin for foobar2000, which means you could use foobar2000 to convert your files in one operation:
yourfile.mp3->foobar with Sountouch DSP->format of your choice (eg: lame mp3)
(Be sure to check the "Use DSP" box in diskwriter preferences)
Of course, you will still have some quality loss due to transcoding, as Digga mentioned.
You can also use another application if you prefer.
Note: 40% faster seems quite a lot
QUOTE (paulhar @ Mar 30 2005, 08:53 AM)
....but is there a mp3 -> wav program?
Give Audacity a whirl.
QUOTE
The Free, Cross-Platform Sound Editor
Audacity is free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems.
Audacity is free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems.
http://audacity.sourceforge.net/
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.