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Sound clip errors


I’m trying to include sound clips in my experiment. I input $sounds (same name as in my Excel file) into a sound component in the Sound box. I read another answer saying that .ogg was compatible with PsychoPy so I changed all of my .m4a’s to .ogg’s. All of the sound clips work, and are labelled with .ogg both in the relevant directory and in the Excel file. However I’m getting the following message:

1.9943 ERROR Requested audio device ‘auto’ that is not available on this hardware. The ‘audioDevice’ preference should be one of [u’Built-in Output’]
12.8073 WARNING t of last frame was 20.41ms (=1/48)
2018-02-02 19:35:35.110 python[8205:6174853] ApplePersistenceIgnoreState: Existing state will not be touched. New state will be written to (null)
Fatal Python error: (pygame parachute) Segmentation Fault

This results in an inability for Esc to work after attempting to run the routine, so I’m having to use command+option+Esc instead. Any idea what I could be doing wrong here?

Thank you again for any advice anybody can provide, it’s much appreciated!