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" <[email protected]> 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 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#3396): https://groups.io/g/all-audio/message/3396 Mute This Topic: https://groups.io/mt/74656765/21656 Group Owner: [email protected] Unsubscribe: https://groups.io/g/all-audio/leave/1074140/405281159/xyzzy [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
