Thread: VSA Audio

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Has anyone experienced audio drift when using VSA and a three axis skull? After my initial set up and tweeking I ran my entire sence and it seems the audio is slightly ahead of jaw movements now. Is there a way to delay the entire audio track by say 200ms?

Originally Posted by chuckb0004

Has anyone experienced audio drift when using VSA and a three axis skull? After my initial set up and tweeking I ran my entire sence and it seems the audio is slightly ahead of jaw movements now. Is there a way to delay the entire audio track by say 200ms?

Haven't had any problems, yet!

What format of sound file are you using? I remember reading somewhere that this kind of problem can occur with MP3 format, so they recommended Wave files for more accuracy.

Don't know if that helps, just thought I'd mention it.

Thanks for the tip I am using a WAV file. I belive it could be my audio hardware since the computer I am using is an old desk top too late to upgrade so I will have to deal with it this season and save up for a better set up for next year.

You should be able to edit the audio file using a program like Audacity or even Windows Sound Recorder and add 200 ms of silence to the beginning of the track, save it as a new file just to leave the original intact, and change you VSA to use this file. This is assuming the delay in the routine is only at the beginning, not accumulating throughout the track.

Mark