02-02-2023, 07:40 AM
My 2 cents on this issue.
Powersupplies are realy the biggest problem when using a Rpi with Moode. My system consists of a Rpi 3B+, Allo Kali reclocker and an Allo Piano 2.1, running the latest Moode version (32bit) and strictly in Stereo mode. Rpi and Kali reclocker powered separately. No usb device in use.
In order to test if a better sound would be obtained with a different powersupply I bougt an IFi powersupply. Measuring the output without load and with load (Rpi) the voltages showed to be ok, 5.17V and 5 V.
However using this PSU strange behaviours occurred during boot. The command "dmesg" showed undervoltage detected (this was not visible with the command "moodeutl -l"). This problem could be overcome by lowering the cpu/dram and gpu frequencies and voltages in config.txt.
As I had access to an Allo Shanti powersupply powering the Kali reclocker things got worse. No sound from the Piano Dac, Sound on the subwoofer exits only, soundcard switching from stereo (2.0) setting to "double stereo" or even "double mono". From the latter status no recovery was possible, a new sd-card had to be burned.
Another thing that occurred was that the Alsamixer was not set to 100% (while in "fixed (0 db output)" volume mode.
Many more things occurred, no MPD, no alsamixer etc. etc.
A note on why, at the moment, I'm using the 32b version vice the 64b version of moode is that with poor powersupplies while updating the music library the system is running out of memory and is freezing. I know this because sometimes I was able to ssh into the system en noticed with dmesg that an automatic recovery system was running (name of the system I did forget).
A second note is that I encountered the same problems using a Rpi 4B 2Gb memory.
The past month I've been experimenting with all kinds of powersupplies and the only valid conclusion is that Moode is solid.
Most problems, more than you can imagins, are caused by inadequate powersupplies.
Regards
Wim
Powersupplies are realy the biggest problem when using a Rpi with Moode. My system consists of a Rpi 3B+, Allo Kali reclocker and an Allo Piano 2.1, running the latest Moode version (32bit) and strictly in Stereo mode. Rpi and Kali reclocker powered separately. No usb device in use.
In order to test if a better sound would be obtained with a different powersupply I bougt an IFi powersupply. Measuring the output without load and with load (Rpi) the voltages showed to be ok, 5.17V and 5 V.
However using this PSU strange behaviours occurred during boot. The command "dmesg" showed undervoltage detected (this was not visible with the command "moodeutl -l"). This problem could be overcome by lowering the cpu/dram and gpu frequencies and voltages in config.txt.
As I had access to an Allo Shanti powersupply powering the Kali reclocker things got worse. No sound from the Piano Dac, Sound on the subwoofer exits only, soundcard switching from stereo (2.0) setting to "double stereo" or even "double mono". From the latter status no recovery was possible, a new sd-card had to be burned.
Another thing that occurred was that the Alsamixer was not set to 100% (while in "fixed (0 db output)" volume mode.
Many more things occurred, no MPD, no alsamixer etc. etc.
A note on why, at the moment, I'm using the 32b version vice the 64b version of moode is that with poor powersupplies while updating the music library the system is running out of memory and is freezing. I know this because sometimes I was able to ssh into the system en noticed with dmesg that an automatic recovery system was running (name of the system I did forget).
A second note is that I encountered the same problems using a Rpi 4B 2Gb memory.
The past month I've been experimenting with all kinds of powersupplies and the only valid conclusion is that Moode is solid.
Most problems, more than you can imagins, are caused by inadequate powersupplies.
Regards
Wim
