Hi,
I think it might your .mp3 sound file - it is huge (~58MB).
Note - the
playsound action uses the WebAudio API and that API fully loads and decodes the sound file before playing - and a compressed 58MB mp3 files needs as decoded sound samples surely an huge amount of memory (in your case: 2428sec * 44100hz * 32bit * 2stereo = ~817MB).
Try using
streamsound instead - that will load and play the file chunk-wise and use much less memory.
Best regards,
Klaus