lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected

[dankcushions]

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

Thank you for the reply.
At no point did I change the audio driver - what should it be to set to please?

it shouldn't be set at all. the default if it's not set is alsathread, when using an updated version of retroarch.

I did put it to config_save_on_exit but why would that affect save states please?

it doesn't directly, but it means you create these massive config files, and break away from the retropie config hierarchy, new defaults, etc. that's fine if you're happy to support and maintain your own configs, but that doesn't appear to be the case :)

the location of the file is

/opt/retropie/configs/all/retroarch/config/

are you sure? because the config files that retropie uses for master system are
/opt/retropie/configs/all/retroarch.cfg
and
/opt/retropie/configs/mastersystem/retroarch.cfg

[uncledisgusting]

@dankcushions said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

Thank you for the reply.
At no point did I change the audio driver - what should it be to set to please?

it shouldn't be set at all. the default if it's not set is alsathread, when using an updated version of retroarch.

I did put it to config_save_on_exit but why would that affect save states please?

it doesn't directly, but it means you create these massive config files, and break away from the retropie config hierarchy, new defaults, etc. that's fine if you're happy to support and maintain your own configs, but that doesn't appear to be the case :)

the location of the file is

/opt/retropie/configs/all/retroarch/config/

are you sure? because the config files that retropie uses for genesis are
/opt/retropie/configs/all/retroarch.cfg
and
/opt/retropie/configs/megadrive/retroarch.cfg

I am sure - the exact file and its location is:

/opt/retropie/configs/all/retroarch/config/genesis_plus_gx_libreto.cfg

I changed audiodriver from "alsa" to "alsathread" and I am having exactly the same problem. Sound is perfect, I save the state and then restore it and it is totally garbled

I have done many retropie builds using the same setup and have never had this issue before just with this emulator.

[dankcushions]

@uncledisgusting that’s a config override, not the configs. i suppose it’s same difference but it shows that your set up is a bit of a rabbit hole. why did you create an override? if you don’t know, delete that file and then try again. if same issue please upload the files i mentioned.

i think it’s going to be a struggle to diagnose any issue if we can’t recreate it and you aren’t able to provide logs.

[uncledisgusting]

@dankcushions said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

@uncledisgusting that’s a config override, not the configs. i suppose it’s same difference but it shows that your set up is a bit of a rabbit hole. why did you create an override? if you don’t know, delete that file and then try again. if same issue please upload the files i mentioned.

i think it’s going to be a struggle to diagnose any issue if we can’t recreate it and you aren’t able to provide logs.

I deleted this file and have had some interesting results

I can save and restore snapshots with no problems on games that do not have the FM sound upgrades such as Alex Kidd in Miracle World, Choplifter

However I am still having the garbled sound problems when restoring snapshots on games that utitlise the FM sound upgrades such as Wonderboy in Monster Land and Fantasy Zone II. There are quite a lot of games on the Master System that make use of FM sound and the difference in quality is amazing!

In the retroarch options I have Master system FM set to auto and Master System core set to Nuked.

Please could you try and re-create the issue I am having with those two specific games.

[barbudreadmon]

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

Please could you try and re-create the issue I am having with those two specific games.

I couldn't reproduce this issue on my setup (note : i'm not on a pi4). Also, MAME is the default value for the Master System FM (YM2413) Core core option.

Edit : on a sidenote, i'm noticing genplus-gx is quite demanding with those settings (comparatively, cps3 games on FBNeo appear to be less demanding), so maybe you are running into some sort of performance issue ? Is your pi4 overclocked ? Do you have runahead or rewind enabled ?

[uncledisgusting]

@barbudreadmon said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

Please could you try and re-create the issue I am having with those two specific games.

I couldn't reproduce this issue on my setup (note : i'm not on a pi4). Also, MAME is the default value for the Master System FM (YM2413) Core core option.

Edit : on a sidenote, i'm noticing genplus-gx is quite demanding with those settings (comparatively, cps3 games on FBNeo appear to be less demanding), so maybe you are running into some sort of performance issue ? Is your pi4 overclocked ? Do you have runahead or rewind enabled ?

Thank you for the reply.
With Mame I notice a considerable decline in sound quality compared to the Nuked option

In terms of performance, it runs perfectly - there is no slowdown or sound issues until the snapshot is restored

Did you try and reproduce this option using the nuked setting? For some strange reason for it to be reproduced one has to play a minute or two of the FM games and progress slightly in the level as opposed to immediately saving and restoring - could you try that please?

[barbudreadmon]

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

Did you try and reproduce this option using the nuked setting?

Obviously since that was in your instructions.

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

For some strange reason for it to be reproduced one has to play a minute or two of the FM games and progress slightly in the level as opposed to immediately saving and restoring - could you try that please?

I still can't reproduce this even with those additional instructions.

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

In terms of performance, it runs perfectly - there is no slowdown or sound issues until the snapshot is restored

You avoided my questions...

[uncledisgusting]

@barbudreadmon said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

Did you try and reproduce this option using the nuked setting?

Obviously since that was in your instructions.

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

For some strange reason for it to be reproduced one has to play a minute or two of the FM games and progress slightly in the level as opposed to immediately saving and restoring - could you try that please?

I still can't reproduce this even with those additional instructions.

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

In terms of performance, it runs perfectly - there is no slowdown or sound issues until the snapshot is restored

You avoided my questions...

My pi 4 isn't overclocked - what settings would you suggest I use for that please?
I don't have runahead or rewind enabled - please excuse my ignorance but I don't know what those settings are and what they are used for - should they be enabled?

Thank you

[barbudreadmon]

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

My pi 4 isn't overclocked - what settings would you suggest I use for that please?

I don't have any recommendation, as i said i don't own a pi4. I'm just thinking that garbled sound can be the result of performance issues, and gpgx appears to be surprisingly demanding. So i'm wondering if an overclock could improve things.

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

should they be enabled?

Probably not, they are features that will lessen performances.

On a sidenote, savestates with the nuked setting appear to be broken to me : i just tried loading my savestates from yesterday and the core crashed, after some more tests it appears the core can't load savestates from another session on my setup (it works just fine if i set it to MAME). That might be related to your issue. Maybe report this to the author, and/or change setting/emulator.

[uncledisgusting]

@barbudreadmon said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

My pi 4 isn't overclocked - what settings would you suggest I use for that please?

I don't have any recommendation, as i said i don't own a pi4. I'm just thinking that garbled sound can be the result of performance issues, and gpgx appears to be surprisingly demanding. So i'm wondering if an overclock could improve things.

@uncledisgusting said in lr-genesis-plus-gx master system sound garbled after restoring save states - all games affected:

should they be enabled?

Probably not, they are features that will lessen performances.

On a sidenote, savestates with the nuked setting appear to be broken to me : i just tried loading my savestates from yesterday and the core crashed, after some more tests it appears the core can't load savestates from another session on my setup (it works just fine if i set it to MAME). That might be related to your issue. Maybe report this to the author, and/or change setting/emulator.

There are no performance issues whatsoever playing a game with nuked sound in the initial session

Your sidenote issue IS the issue that I have been concerned with the whole time. Thank you for corroborating that. I think this emulator is the only one with nuked fm sound.