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Weird noise on start playing

What Education System

May 30, 2017 17:20

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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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2 comments

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  HiFiBerry team May 30, 2017 20:03

  Hi,

  I guess, your file has some metadata at the beginning that aplay just interprets as sound data. I recommend to use mplayer instead of aplay. aplay's capabilities are very limited.

  Best regards,
  Daniel

• 0
  
  What Education System June 01, 2017 15:36

  Hi Daniel,

  Good point: we have tried that but the result is the same. I guess that we have to assume that the noise is unavoidable.

  Best regards, What Education System.