| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 03764 | Sound | Minor | Always | Mar 3, 2010, 13:12 | Mar 6, 2011, 23:49 |
| Tester | Jerry | View Status | Public | Platform | MAME (Official Binary) |
| Assigned To | Resolution | Fixed | OS | Windows 2000 | |
| Status [?] | Resolved | Driver | |||
| Version | 0.136u3 | Fixed in Version | 0.141u4 | Build | Normal |
| Fixed in Git Commit | Github Pull Request # | ||||
| Summary | 03764: kuniokun, kuniokunb: PCM sound base line gets shifted little by little. | ||||
| Description |
PCM sound base line is dropping down little by little. On modern OS, this doesn't appear for some reason (difference of wav handling by unsigned or signed?, or rounding up?). |
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| Steps To Reproduce |
If you continue inserting credits slowly, the ADPCM output baseline reaches -30000 after 6 or 7 credit voices. This causes broken sound on some PCs. It seems that usually this doesn't appear on rather modern OS like Windows XP and Vista/7. In this case, you can confirm the dropdown by -wavewrite option and an wav editor. |
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| Additional Information | If you don't have the problem on you PC, maybe attached mp3s are also played correctly. | ||||
| Github Commit | |||||
| Flags | |||||
| Regression Version | |||||
| Affected Sets / Systems | kuniokun, kuniokunb | ||||
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Attached Files
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 kunio.mp3 (453,120 bytes) Mar 4, 2010, 13:09 | ||||
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kuniokun.mp3 (675,944 bytes) Mar 4, 2010, 14:41 | |||||
 k.jpg (207,519 bytes) Mar 5, 2010, 12:35 | |||||
 No.05822
Fujix Administrator
Mar 3, 2010, 14:18
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Jerry, I send you an email asking details in JAPANESE. Please check out. |
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No.05825
Fujix Administrator
Mar 4, 2010, 13:09
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According to the report author, PCM sound is getting broken little by little. One of the easiest points to reproduce is when inserting credits, the voice becomes noisy and finally plays only noise. He thought the regression was 0.129u6 first, but it doesn't have to do with the problem. The sound problem can be seen both in kuniokun and renegade. I tested the game based on his description, but no repro for now. Attached a recording. |
 No.05826
Jerry Viewer
Mar 4, 2010, 14:15
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Changed in src\drivers/renegade.c line 208 from renegade_adpcm.end = offs + len/2; to renegade_adpcm.end = offs + len/4; |
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No.05827
Fujix Administrator
Mar 4, 2010, 21:58
edited on: Mar 4, 2010, 22:00
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According to his mail, kuniokun.mp3 is a recording on his PC. And the source change is a fix for this problem. Still no repro for me though. Windows 2000?? |
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No.05829
Fujix Administrator
Mar 5, 2010, 12:17
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I converted his mp3 to wav format and figured out that the ADPCM base line is getting shifted little by little. This can be seen on my upload too. On Windows XP and later OS, the mp3 files are properly played. This problem appears only in the WAVE format. Maybe windows 2000 or some special hardware unveil the problem. Confirmed the issue now. |
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No.05835
Fujix Administrator
Mar 6, 2010, 17:40
edited on: Mar 6, 2010, 17:41
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Received a fix for this problem from the reporter (not the previous hacky workaround):static WRITE8_HANDLER( adpcm_play_w )
{
int offs;
int len;
offs = (data - 0x2c) * 0x2000;
len = 0x2000 * 2;
/* kludge to avoid reading past end of ROM */
if (offs + len > 0x20000)
len = 0x1000;
if (offs >= 0 && offs+len <= 0x20000)
{
renegade_adpcm.current = offs;
renegade_adpcm.end = offs + len/2;
renegade_adpcm.nibble = 4;
renegade_adpcm.playing = 1;
+ reset_adpcm(&renegade_adpcm.adpcm);
} |
 No.07298
hap Developer
Mar 6, 2011, 23:48
edited on: Mar 6, 2011, 23:52
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Ok. -- Fixed by Jerry, sorry for taking so long (ohh! exactly 1 year after prev comment :P) |