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Post subject: slowing down an mp3, free software?
Posted: Mon Jan 04, 2010 2:43 pm
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i need to slow down a section of a solo as its starting to get the better of me and there are no tabs for it. does anyone know of any software ( preferably free) that will slow down an mp3, without changing the pitch of the notes?

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Posted: Mon Jan 04, 2010 2:52 pm
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Try audacity i find it to be good http://audacity.sourceforge.net/

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Posted: Mon Jan 04, 2010 3:07 pm
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Another useful tool for that kind of exercise is the Tascam GT1. You put in a CD and you can slow it down, change pitch, create loops, etc. For example if you wanted to copy a SRV solo note for note but you wanted to play it in standard tuning, you could transpose it up a half step, make a loop of the solo itself and then slow the loop down to whatever speed you want, down to 1/32nd of normal. The more you modify it the more the overall sound quality and tone deteriorates but it does get the job done.

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Posted: Mon Jan 04, 2010 3:21 pm
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Audacity does do it. Drag and drop the mp3 into it. Find the part you want to slow down and highlight that section. Go to effects in the toolbar then select change tempo. You can also bring it back up to pitch after slowing it down.

AVS media editor will also do it, but you have to pay for that one.

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Posted: Tue Jan 05, 2010 3:34 am
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Audicatiy seems to do the trick.

one question though, when i slow down the tempo, the pitch goes down also, right, well how do i know what the new pitch is so that i can select that in the "pitch from" box on the change pitch box?


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Posted: Tue Jan 05, 2010 5:12 am
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I just tried it out. A song in C slowed down 10% shifted to Bb.

You need to work out the key of the song from a unaltered version, slow down a version for you to work on. Then raise the pitch back up. Its very easy to do though. You just select shift up, then the key you want. The pitch change options are in the effects section of the toolbar.

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Posted: Tue Jan 05, 2010 5:30 am
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+1 BMW

The GT1 was a great tool when I was first learning to play and still comes in hardy for those hard passages.

Amazing Slow Downer is great for only $20.

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Posted: Tue Jan 05, 2010 5:51 am
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Quicktime can slow down mp3. and it is a free download www.apple.com

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Posted: Tue Jan 05, 2010 11:04 am
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I use a product called Transcribe from Seventh String Software. Its not free though. With this software you can slow a section all the way down to 25% speed and maintain the same pitch. You can have that section repeat also.

Audacity is good open source software. i use it a lot also but, not so much for transcribing.

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Posted: Tue Jan 05, 2010 12:21 pm
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nikininja wrote:
Audacity does do it. Drag and drop the mp3 into it. Find the part you want to slow down and highlight that section. Go to effects in the toolbar then select change tempo. You can also bring it back up to pitch after slowing it down.

AVS media editor will also do it, but you have to pay for that one.


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Posted: Tue Jan 05, 2010 1:09 pm
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whuugh

You must be using a better version than me Mike. Mine definately dropped pitch. I tried the beta version and couldnt work it, I'm rubbish at technology.

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Posted: Tue Jan 05, 2010 1:20 pm
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nikininja wrote:
whuugh

You must be using a better version than me Mike. Mine definately dropped pitch. I tried the beta version and couldnt work it, I'm rubbish at technology.

If you select "Change Tempo" the pitch won't change, but if you choose "Change Speed" it will.......

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Posted: Tue Jan 05, 2010 2:00 pm
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Tochai wrote:
Try audacity i find it to be good http://audacity.sourceforge.net/

+1 on Audacity.

If you want to export your Audacity-edited files to MP3 format, you'll also need to download the free LAME MP3 Encoder. 8)

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