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
