Pitch shifting Audio

Monte Goulding monte at sweattechnologies.com
Fri Sep 20 17:36:04 EDT 2013


On 21/09/2013, at 7:08 AM, Mark Wilcox <m_p_wilcox at yahoo.co.uk> wrote:

> Pulling the audio out of a video to be able to pitch shift it in real-time could be done with ffmpeg (you need to decode it before you can pitch shift), although on mobile platforms that is extremely inefficient vs using system frameworks that take advantage of dedicated hardware. If you need this you might as well be replacing LiveCode's multimedia support.

mergAV is part of the way there but that's just iOS and OS X. If there's an Android equivalent of AVFoundation I'd love to hear about it as I thought ffmpeg was used there for that type of stuff. The video composition stuff in AVFoundation blew me away with its performance on mobile.

Cheers

--
Monte Goulding

M E R Goulding - software development services
mergExt - There's an external for that!








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