| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 03910 | Sound | Major | Always | Jun 30, 2010, 21:09 | Jul 5, 2010, 11:50 |
| Tester | hap | View Status | Public | Platform | |
| Assigned To | hap | Resolution | Fixed | OS | |
| Status [?] | Resolved | Driver | |||
| Version | 0.138u2 | Fixed in Version | 0.138u3 | Build | |
| Fixed in Git Commit | Github Pull Request # | ||||
| Summary | 03910: All sets using stereo sound: Right speaker is louder than left speaker | ||||
| Description |
Right speaker is louder than left speaker in games with stereo sound. easily audible in eg. qsound logo in sfa2 as well as neogeo booting fanfare |
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| Steps To Reproduce | |||||
| Additional Information | |||||
| Github Commit | |||||
| Flags | |||||
| Regression Version | 0.138u2 | ||||
| Affected Sets / Systems | All sets using stereo sound | ||||
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Attached Files
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 sfau1.wav (1,272,862 bytes) Jun 30, 2010, 21:39 | ||||
| sfau2.wav (1,277,534 bytes) Jun 30, 2010, 21:39 | |||||
 No.06317
Tafoid Administrator
Jun 30, 2010, 21:40
edited on: Jun 30, 2010, 21:42
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Confirmed and attached -wavwrite of the set, sfa in u1 and u2 for comparison. The right channel seems pretty much double what it should be. |
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 No.06320
hap Developer
Jul 1, 2010, 19:38
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found the cause: When setting up stereo speakers (sound.h/c), right speaker m_config.m_x is 0.2 (correct), and left speaker should be -0.2 but it is 0.0, resulting in a 'mono' left speaker. Why this happens? dunno... that puzzle is for Aaron :P |
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No.06334
hap Developer
Jul 4, 2010, 22:20
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Ok, the problem is that doing "* (double)(1 << 24)" and then "/ (double)(1 << 24)" converts any negative value to 0.0. This is not just used in sound.h/c, but also eg. video.h/c where eg. astrocde.c last param of "MDRV_SCREEN_DEFAULT_POSITION(1.1, 0.0, 1.18, -0.018)" (_yoffs) is converted to 0.0. my build is 32-bit btw |