crackling/robotic audio stimuli via Opensesame
I am doing an alternative forced choice identification task in the fMRI scanner.
Some of the audio stimuli (speech sound - syllables) are combined with broadband noise, and the duration is 500ms. The audio files go through Openseame on PC (Windows 10, but not updating frequently to avoid technical issues with other softwares) to speaker (Opto Automatic Noise Cancellation device) and to the headphone in the scanner. Sometimes when running the Opensesame task (back-end: psycho), the stimuli become crackling/robotic sounds, especially when it is with noise. However, the audio files work well when I use laptop (Windows 10) to connect with devices.
Would anyone knows if I should adjust/notice something with PC when running Opensesame with audio files (.wav)?
Thank you very much!