Opened 12 years ago

Closed 10 years ago

Last modified 13 months ago

#3658 closed defect (worksforme)

WINCE: Delayed sound effects and voice

Reported by: SF/japher Owned by: SF/knakos
Priority: high Component: Port: WinCE
Keywords: Cc:
Game:

Description

For background info see:
http://forums.scummvm.org/viewtopic.php?t=5168

Problem:
Sound is around half a second behind the graphics. This is present using uncompressed, mp3, vorbis and flac audio.

There's no outward signs of high CPU load (neither sound or graphics are choppy, just perfectly out of sync), though I haven't yet done any CPU monitoring to confirm this.

I've selected all games here as this has so far been observed on DOTT, SNM, FOA and COMI.

Hardware platforms this has been observed on:
HTC TyTN II (Kaiser)
HTC TyTN (Hermes)
Dell Axim X51V
HP Ipaq HX4700

Software platforms:
WM2003
WM5
WM6

ScummVM versions:
0.8.2
0.11.0
0.11.1

Could this be caused by an inherent delay in sound hardware/driver on these devices? Maybe an offset is required to cue up sound events ahead of time to account for this delay?

I've observed an interesting side effect of this in COMI: sound clips that are supposed to be played very close together (e.g. characters interrupting each other) suffer from a gap of a second or more, making the speech rather disjointed. This suggests that the engine is waiting for one sound clip to finish before cueing the next. In this case, an offset wont help :( A good place to observe this is reading the time on the clock in Puerto Pollo, the time is delivered as a series of sound clips, and the gap between these is noticeably long.

Ticket imported from: #1918279. Ticket imported from: bugs/3658.

Change History (10)

comment:1 by fingolfin, 12 years ago

Owner: set to SF/knakos

comment:2 by sev-, 11 years ago

What is the status of this item?

comment:3 by sev-, 10 years ago

Priority: normalhigh

comment:4 by sev-, 10 years ago

This bug is nice to get fixed before the release. Raising priority for keeping the track.

comment:5 by SF/knakos, 10 years ago

OK, I do see some latency over here by testing the clock in COMI 3. But, by setting the subtitle speed all the way to 0 in the in game menu, sounds play much closer together, making it indistinguishable from a high end pc (in my opinion). Can you verify this?

comment:6 by SF/knakos, 10 years ago

Status: newpending

comment:7 by SF/sf-robot, 10 years ago

This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).

comment:8 by SF/sf-robot, 10 years ago

Status: pendingclosed

comment:9 by sev-, 10 years ago

Resolution: worksforme

comment:10 by digitall, 13 months ago

Component: --Unset--Port: WinCE
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