Choppy/cracking audio with batocera under CRT w/ pal at 50hz

[dirDahsul]

Batocera build version

42

Your architecture

X86_64

Your Graphic Processor Unit(s) (GPU)

AMD/ATI R7 240

Issue description

I'm running the batocera crt script on my 50hz pal tv. Anyway, picture is set up and all, tv is okayish, but I have constant cracking choppy sound. Oh, ive correctly set up and am using the pal settings & all. Maybe behavior connected to the 50 hz screen? its kinda not standard .. maybe emulators are struggling to output the audio at 50hz??

What I've tried:

• All audio output settings (no change)
• Using separate speakers instead of the tv speaker (no change)
• global.retroarch.audio_driver=sdl2 (made the choppy sound quieter, so its a tiny bit more usable, but the audio quality was totally destroyed)
• audio crack/chop not present in main menu with the music there
• only tested with snes and nes games (i dont know if other console emulators will have this problem)
• global.retroarch.audio_driver=tinyalsa (no sound is coming at all ... maybe cuz i use vga to scart rgb, scart also carries audio like hdmi does)
• did not test tinyalsa with separate from scart speakers ... will test and update on this
• ah, i also tried to connect my pc headphones to the tv via the headphones jack ... audio correctly transferred to my headphones, but still choppy

All help is appreciated, I really ... REALLY like the os and the setup I made ... its literally dream-like .. just wish we could fix the audio

Detailed reproduction steps

launch nes or snes game, and it happens

Details of any attempts to fix this yourself

No response

Details of any modifications you have made to Batocera.

crt script

Logs and data

i tried running pw-top for audio issues that may come in .... but no audio issues are detected ... sorry that i cant provide log

[dirDahsul]

UPDATE: Tested global.retroarch.audio_driver=tinyalsa and connecting separate speakers to the aux port (instead of scart audio). No audio is present that way as well ... soo tinyalsa is not working for me at all, regardless of tv speakers or separate speakers

UPDATE2: Forgot to mention that I also tried the different audio latency options, that didn't work

[dirDahsul]

Oppp .. I fixed it ... you do nano batocera.conf and write a new line with this:
global.retroarch.video_refresh_rate = 50

that fixed it for me, gud enough

Update: this setting affects the emulation speed. I.e. US roms will be 'sped-up' to fit into 50hz. Using europe roms is preferable i guess, but damn europe has sped-up or slowed-down sound in their roms ... chock-full of incorrectly ported roms