There's a strange sound problem with Rogue firmware... I originally thought there was a sound problem on my 280V because of the overclock, but It seems that there's something else that is happening..
I've confirmed this problem happens on both the 280V and 280M (V1.7.12), and I also just confirmed it happens on the Pocketgo V2/Powkiddy Q80. (V1.0.9)
The symptoms are.. that the sound will have pop noises, and also have "hiccups"..
It's most noticeable in Chocolate Doom, ECWolf, and scummvm..
I've also seen it happen with older GCW0 apps (Prosystem, DinguxVectrex, ColecoD, etc..)
It doesn't seem to happen with PCSX4ALL, FCEUX, Gabatte, Picodrive etc..
You can see it happen easily by turning on the unit and starting chocolate doom.. the debug output from chocolate doom also catches it.. I have the same output errors on all 3 consoles..
ALSA lib pcm.c:8545:(snd_pcm_recover) underrun error occured..
One thing that I also noticed.. is that it's some sort initialization problem.. if you start and then exit doom after s short delay repeat this 2-4 times then you'll notice the problem will go away, until you power off/on the console..
Just a note that it does not happen on the original firmware, and on the Dingux beta firmware.. maybe that can be a clue to what it is..
Hopefully this is something that you have some time to look at...