| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 08231 | Sound | Minor | Always | Feb 23, 2022, 01:31 | Jul 8, 2022, 16:11 |
| Tester | ICEknight | View Status | Public | Platform | MAME (Official Binary) |
| Assigned To | aaron | Resolution | Fixed | OS | Windows 10/11 (64-bit) |
| Status [?] | Resolved | Driver | |||
| Version | 0.240 | Fixed in Version | 0.246 | Build | 64-bit |
| Fixed in Git Commit | 4384558 | Github Pull Request # | |||
| Summary |
 08231: genesis and clones [ejim2u]: Slight differences in YM2612 emulation |
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| Description |
I've recorded what may be a good test case for the YM2612's "ladder effect", a track from Earthworm Jim 2 which Tommy Tallarico has mentioned was made specifically to exploit said effect (I'm assuming to add to the cringiness of the level where it's used): Hardware used: Japanese Mega Drive VA1 (note that this may accentuate these effects, in comparison with later hardware revisions) |
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| Steps To Reproduce |
Load savestate or: -Start a game -Pause, then enter A, C, C, A, B, A, B, Left to enter the sound test -Select the sount test, press A until the track number is 0 -Press C to play the track |
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| Additional Information | Sound in the video was amplified by 20dB, since Mega Drive recordings tend to sound pretty faint. | ||||
| Github Commit | |||||
| Flags | Verified with Original | ||||
| Regression Version | |||||
| Affected Sets / Systems | genesis and clones [ejim2u] | ||||
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Attached Files
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 0.zip (45,958 bytes) Feb 23, 2022, 01:31 Uploaded by ICEknight | ||||
 No.19838
Haze Senior Tester
Feb 23, 2022, 12:12
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This should be reported to Aaron on his github page https://github.com/aaronsgiles/ymfm |
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 No.19839
ICEknight Tester
Feb 23, 2022, 16:23
edited on: Feb 23, 2022, 16:31
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Thanks, just posted it there too: https://github.com/aaronsgiles/ymfm/issues/28 |
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No.19842
Augusto Tester
Feb 25, 2022, 07:59
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Have you compared using Retroarch core genesis plus gx using Nuked YM2612 ? |
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No.19857
ICEknight Tester
Feb 27, 2022, 21:33
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Nope, only testing MAME. |
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No.20361
ICEknight Tester
Jul 6, 2022, 09:46
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This has apparently just been fixed in ymfm by Aaron: https://github.com/aaronsgiles/ymfm/commit/1d02129da46b20069b46fdcbbfa676e10fcc6186 |