Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
03737 Speed Minor Have not tried Feb 17, 2010, 20:13 Dec 16, 2021, 20:48
Tester Ace View Status Public Platform MAME (Official Binary)
Assigned To aaron Resolution Fixed OS Windows 10/11 (64-bit)
Status [?] Resolved Driver
Version 0.135 Fixed in Version 0.239 Build
Fixed in Git Commit d187a28 Github Pull Request #
Summary 03737: salamand, lifefrce: Music speed is slow.
Description Music speed is slower than the original.
Steps To Reproduce
Additional Information This report was derived from 03538.
Github Commit
Flags Verified with Original
Regression Version
Affected Sets / Systems salamand, lifefrce
Attached Files
mp3 file icon salamander_stage_1_and_2.mp3 (8,865,173 bytes) Feb 17, 2010, 20:13
related to 03538ResolvedFujix  salamand, lifefrce, lifefrcej, salamandj: Music is too quiet in Salamander and Lifeforce 
related to 03754Resolvedaaron  scontra, scontraj: Flaws in sound emulation 
related to 07078Resolvedaaron  tmnt, tmntua, tmntj: Sound or gameplay is slow if comparing with arcade 
related to 08146Resolvedaaron  contra and clones: Sound and music is slightly too slow 
User avatar
Senior Tester
Feb 18, 2010, 14:00
I think I fixed this issue but since I have difficulties in judging by myself I attached a test MAME. It supports only salamander and clones so don't use with other games in the driver.
User avatar
Feb 18, 2010, 15:16
edited on: Feb 18, 2010, 15:17
Thank you Mamesick for the fix. Stereo and volumes are correct now :)

I compared the time for the first loop of music, MAME is 36.464 seconds and the original is 34.526 seconds. It's 5.6 % faster in the original.
User avatar
Senior Tester
Feb 18, 2010, 17:10
edited on: Feb 18, 2010, 17:13
Uhm. We need measurements from a PCB because clocking the M68000 to 10MHz music is perfect (or very very close...). I can also fix 03539 (only music speed I guess) but I have to check some things first.
User avatar
Mar 9, 2010, 00:34
Clocking the M68000 to 10MHz? Don't you mean clocking the Z80 to 10MHz? The Z80 is Salamander's sound CPU. When overclocked to 10MHz, the speed of the music is perfect, however, some notes in the music appear to come out wrong when the Z80 is overclocked that high. Why is that?