If you have those tools available to you why not just edit the audio to fit the time. DMc On Jan 22, 2011, at 10:29 AM, Iain Laird wrote:
> Hello Sursounders, > > I'm a long time lurker on the list hoping to pick your collective brains on > something. > > I have a B-format recording made outdoors on an ST350 which I am attempting > to speed up using a phase vocoder. The aim being to make the recording > occur over a much shorter period of time without affecting the pitch or the > spatial image. > > I have made numerous attempts on many different algorithms including Logic > pro 8, Audacity, a number of Matlab scripts and Max patches and SoundHack. I > am getting a range of results, some produce audible distortion due to the > resynthesis but most appear to break down the spatial image, for instance a > source which clearly travels right to left in the recording has no clear > direction after processing. During playback it feels like phase errors are > being introduced which I guess is to be expected with this type of > processing. > > I am due to bury my head in some books and papers on phase vocoders over the > next few days to see if I can shed any light on what is going on here but > any pointers, advice, examples or resources that anyone could suggest would > be fantastic. > > Thanks in advance! > > Iain > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110122/9feda0d2/attachment.html> > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound Danny McCarty Monolith Media, Inc. 4183 Summit View Hood River, Or 97031 415-331-7628 541-399-0089 Cell http://www.monolithmedia.net/ http://www.danielmccarty.com/ _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
