Weird noise on start playing

Hi there,

We are programming a little script in Ruby, and we are doing a syscall to "aplay" player. This syscall for some reason is producing a strange noise before playing.

Instead trying to describe that noise I'll paste a link here to download 3 files: a WAV file of the noise and 2 screenshots.

Here is the link: http://ficheros.unoycero.com/clientes/24?hash=4d134bc072212ace2df385dae143139da74ec0ef

We are using a Raspberry Pi 3 with Digi + Standard.

Some feedback would be more than welcome! :)

Best regards, What Education System team.




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