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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07305 Sound Minor Always 28 days ago 28 days ago
Tester robcfg View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS MacOS X
Status [?] Confirmed Driver dragon.cpp
Version 0.209 Fixed in Version Build 64-bit
Summary MESS-specific 07305: dragon32, dragon64, dragon64h, dragon200, dragon200e: DAC sound not working
Description I did a small assembler program to play 3000hz sampled sound through the Dragon's DAC and found that it works as intended on a real Dragon and on XRoar, but on MAME it produces no sound at all.
Steps To Reproduce I've attached my program along a sampled sound, the original asm source code and a video of XRoar playing the sample for comparison.

Just start a Dragon machine with the vmailsnd.cas file and type:

CLOADM
EXEC 20000

The result should be as on the video, but actually MAME will remain silent.
Additional Information
Flags
Regression Version
Affected Sets / Systems dragon32, dragon64, dragon64h, dragon200, dragon200e
Attached Files
zip file icon Mametesters Dragon DAC Issue.zip (1,106,771 bytes) 28 days ago Uploaded by robcfg
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