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Increasing the Speed of a WAV File
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Darran Ross
Hi list.
I've got a folder of wav files that I'd like to increase the speed of without effecting the pitch. Can anyone recommend a program to do same? Thanks to anyone who can help. Darran |
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Colin Howard
Greetings,
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GoldWave's time warp facility will achieve this. Go to menu and effects, to time warp, go to first preset which is similarity, tab across to specify change in length or percent, mine is by default set to percent, decide which you need, tab again and you will see an appropriate value, amend as desired, tab round to ok, enter, job complete. Suggest try on a small sample first, if happy, undo and apply to required total of audio. Be aware, as this is quite a complex algorythm, it may take a fairly long time and also be aware make several small changes rather than one large change. Make sure your undo scheme can cope with a largish numbers of ctrl-z, I have mine set to 15, on my system, the maximum allowed seems to be 20, not sure if this is a GoldWave or system limit. It can be found under options then go down to file storage, on my system is labelled undo lefels. I am still using GW V5.70, on both WXP laptop and W7 desktop. On Wed, 3 Jun 2020 20:05:36 +0100, "Darran Ross via groups.io"
<darran.ross@...> wrote: -Hi list. - -I've got a folder of wav files that I'd like to increase the speed of without effecting the pitch. - -Can anyone recommend a program to do same? - -Thanks to anyone who can help. - -Darran - - - - --- This email has been checked for viruses by AVG. https://www.avg.com |
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Darran Ross
Many thanks Colin, this worked a treat!
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Darran ----- Original Message -----
From: "Colin Howard" <Colin@...> To: <all-audio@groups.io> Sent: Thursday, June 04, 2020 12:41 PM Subject: Re: [all-audio] Increasing the Speed of a WAV File Greetings, GoldWave's time warp facility will achieve this. Go to menu and effects, to time warp, go to first preset which is similarity, tab across to specify change in length or percent, mine is by default set to percent, decide which you need, tab again and you will see an appropriate value, amend as desired, tab round to ok, enter, job complete. Suggest try on a small sample first, if happy, undo and apply to required total of audio. Be aware, as this is quite a complex algorythm, it may take a fairly long time and also be aware make several small changes rather than one large change. Make sure your undo scheme can cope with a largish numbers of ctrl-z, I have mine set to 15, on my system, the maximum allowed seems to be 20, not sure if this is a GoldWave or system limit. It can be found under options then go down to file storage, on my system is labelled undo lefels. I am still using GW V5.70, on both WXP laptop and W7 desktop. On Wed, 3 Jun 2020 20:05:36 +0100, "Darran Ross via groups.io" <darran.ross@...> wrote: -Hi list. - -I've got a folder of wav files that I'd like to increase the speed of without effecting the pitch. - -Can anyone recommend a program to do same? - -Thanks to anyone who can help. - -Darran - - - - --- This email has been checked for viruses by AVG. https://www.avg.com __________ ESET Internet Security __________ This email was scanned, no threats were found. Detection engine version: 21439 (20200604) https://www.eset.com |
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Colin Howard
Darran,
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Pleased it worked for you. There are other values in the tabs but not altogether sure how these can be used, maybe more trials experimenting with these setting could produce better quality sound. As, no doubt, you have noticed, there are other algorythms available, but I have found the first one, similarity, gives consistently the best results. On Thu, 4 Jun 2020 15:51:20 +0100, "Darran Ross via groups.io"
<darran.ross@...> wrote: -Many thanks Colin, this worked a treat! - --- This email has been checked for viruses by AVG. https://www.avg.com |
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