Speaker PHat Questions

Support
1

Hello,

I have a Speaker Phat on my Pi 2, Questions:

  1. When I power the Pi from USB, the network crashes when I play a music file. Now I power the
    Pi through the hat and all works fine. Is that normal?

  2. I want to build a doorbell, so my file are only 1 or 2 seconds long. When I play nothing comes from
    the hat. How can I fix this?

2

That seems odd. What power supply are you using to power your Pi?

What filetype are your doorbell sound files, how are you playing them?

3

An old AT PSU

omxplayer -o alsa doorbell_01.mp3

4

I made few more test

First attempt
Play a playlist of five one seconds mp3s with vlc -> vlc and audio crashes (vumeter light up at half)

Second attempt
Play a playlist of five one seconds mp3s with vlc -> it plays :) and it play also one one second mp3 alone

But at start of each file it makes a noisy sound, like plugging in speaker

5

The noisy sound is something we’re looking into, but so far we’ve only got some hypothetical fixes. It’s a far more complex issue to fix than it would appear.

6

any news here?

filling char with nonsens

7

The fix at the moment is to use pulseaudio. I think a kernel level fix might be possible, but it’s not going to be imminent since it’s a colossal can of worms.

See: Speaker phat, loud clicks and removing the alsa driver