Splitice Posted March 9, 2018 Share Posted March 9, 2018 We are in the process of migrating from NanoPI NEO's to NanoPI NEO Core's as part of that we are moving to mainline NEO Air / NEO Core images. I noticed that audio playback is soft / fades in at the start of the file. This only seems to occur on mainline images. Thoughts? Link to comment Share on other sites More sharing options...
Igor Posted March 9, 2018 Share Posted March 9, 2018 3 hours ago, Mathew Heard said: This only seems to occur on mainline images. Mainline kernel is not quite finished and is not recommended to use in production. ATM it is somewhere in a testing/bug hunting stage. A month. Few months. Link to comment Share on other sites More sharing options...
Splitice Posted March 9, 2018 Author Share Posted March 9, 2018 Unfortunately legacy has it's own problems on NEO Core too (e.g one big one is that it takes >3m to boot, I suspect it's trying to get the wifi/bt up). To those who find this thread a workaround is to transmit 500ms of blank wav, then wait 3 seconds then start the actual playback. This appears to prime the audio circuitry (DAC?), perhaps it's power saving. Priming appears to last for 20-30 seconds. Link to comment Share on other sites More sharing options...
guidol Posted March 9, 2018 Share Posted March 9, 2018 3 hours ago, Mathew Heard said: To those who find this thread a workaround is to transmit 500ms of blank wav, then wait 3 seconds then start the actual playback. This appears to prime the audio circuitry (DAC?), perhaps it's power saving. Priming appears to last for 20-30 seconds. thats the same with the NanoPi Duo Link to comment Share on other sites More sharing options...
yam1 Posted April 20, 2018 Share Posted April 20, 2018 You could use alsamixer to increase the volume, the default volume is too low. This is different from the default on the legacy which is close to 100%. 1 Link to comment Share on other sites More sharing options...
Johhny Blue Posted May 25, 2018 Share Posted May 25, 2018 I have been playing around with this as it is really annoying and have found that (on my board) by unmuting mic1, playback will be instant - but there is a loud pop/click. Does anyone know how to remove the click/pop? J. Link to comment Share on other sites More sharing options...
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