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Audio play rate
Posted: Sat Feb 01, 2014 6:36 pm
by teacherguy
I have been spending time this morning learning how to alter the play rate in a stack in order to alter the pitch of a sound file (which is exactly what I want to do). Is there any way to do this in iOS?
Re: Audio play rate
Posted: Sat Feb 01, 2014 7:16 pm
by Mark
Hi,
Use the mobileControlSet command to change the playRate property of a native player control on iOS. Read the dictionary entry for mobileControlSet.
Code: Select all
mobileControlSet gPlayerControlID,"playRate",-1 // backwards, normal speed
mobileControlSet gPlayerControlID,"playRate",0 // stop
mobileControlSet gPlayerControlID,"playRate",0.25 // slowly
mobileControlSet gPlayerControlID,"playRate",2 // forward, twice the normal speed
Kind regards,
Mark
Re: Audio play rate
Posted: Sat Feb 01, 2014 7:45 pm
by teacherguy
Thank you Mark, I just tried this.
It would appear that QT is intervening and maintaining the pitch regardless of the playback rate. Not the result I was hoping for.
