HI all and DJ X, thanks a lot for this answer! I asked myself the same many many times. I will put a test on this to see how it works. Sonar 6 and 7 have even greater tools for that but I dont know if they are accessible. regards, Patrick Schuppe -----Ursprungliche Nachricht----- Von: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx]Im Auftrag von D!J!X! Gesendet: Freitag, 26. Oktober 2007 00:21 An: ddots-l@xxxxxxxxxxxxx Betreff: [ddots-l] Re: how to change tempo of audio file Import the file, select the track, then use edit>groov clip looping. This should acidize it to the project as close as it can; if not you'll have to use sound forge to acidize the file. Note, if it's an entire song you are doing, make sure you remove as much empty space at the end and the beginning as you can, so that it won't interfear with the acidizing... HTH, D!J!X! ---------------------------------------------------------------------------- -- From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of blue wings Sent: Thursday, October 25, 2007 5:17 PM To: ddots-l@xxxxxxxxxxxxx Subject: [ddots-l] how to change tempo of audio file Hey,how can i change the tempo of audio file for example mp3 in sonar?