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Inconsistent skipping with 24-bit playback

Cameron

July 07, 2024 18:47

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I have a hifiberry on my raspberry Pi 4b+ running picoreplayer and playing through squeezelite. Most of the time it's great all the way up to 192/24 whether playing local files or streamed (Qobuz). On occasion, the player will skip incessantly when playing 24bit files regardless of source. The only fix I can find is a restart of the Pi but sometimes that only works for a minute other times it works forever. I recently moved and had to change from a wired connection to wireless, which appears to be the genesis of the issue, but there should be no reason the connection can't keep up. One thought I had was that the pi is overheating, but I don't know how I'd fit a fan on it with the hifiberry dac in place. I am using the steel hifiberry case. Any suggestions or thoughts what could be happening or where I can look to narrow it down further?

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3 comments

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  HiFiBerry team July 08, 2024 07:54

  Wireless dropouts are not unusual. As 192kHz material requires a higher bandwidth it makes sense that you see this only at 192/24. Try moving you system closer to the access point and see if something changes. 

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  Geoff W July 09, 2024 03:47

  (Having trouble posting... trying a different browser.)

  Yep, your wifi has to be good.  

  Check wifi signal strength and bandwidth to the Pi if your router / wireless AP provides this information.  

  I'm using RPi 4B's as server and client to play multiple 96kHz 32-bit audio streams.  I was getting dropouts and found the Pis had connected to my 2.4 GHz network for some reason.  I have both 2.4 and 5 on the same SSID.  Check your Pi is connecting to 5GHz. 

  Once is steering both Pi's to 5 GHz it works perfectly.  Three streams of 96kHz 32-bit stereo shows roughly 25 Mbps throughput.  

  I'm using Mopidy and Snapcast; so it's different software. 

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  HiFiBerry team July 09, 2024 06:13

  5GHz networks are quite good if there's a lot of traffic in the 2.4GHz region. However, the range is lower. If you have a a long distance to the access point or lots of walls in between, 2.4GHz might work better.