search

MathewWi / fbzx-wii

Automatically exported from code.google.com/p/fbzx-wii
GNU General Public License v3.0
0 stars 0 forks source link

Occasional sound noises #27

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. Enable Turbo mode and load a tape
2. Or just press the Home button to enter/exit the menu

What is the expected output? What do you see instead?
Some sound crackling will be heard during tape loading when the emulator's 
"Turbo mode" is active.

There's also some more sound crackling heard every time the Home menu is 
opened/closed.

Original issue reported on code.google.com by iceknigh...@gmail.com on 5 Jan 2013 at 11:55

GoogleCodeExporter commented 9 years ago 
These are known issues.
The first one occours when the emulator can not keep up with the turbo speed 
especially for 128k mode. That's the reason I inserted two fixed speeds (fast 
and ultra fast), Auto turbo mode sets the speed as ultra fast.
I can solve the issue with these solutions:

1) Reduce the turbo speed which can keep up with the majority of the emulation 
situations (fast).
2) Switch the sound off during turbo
3) Insert a configuration for turbo mode.

The second issue is still opened.

Original comment by olimpier...@gmail.com on 5 Jan 2013 at 3:43

GoogleCodeExporter commented 9 years ago 
I fixed a speed between fast and ultra fast which does not generate crackling.

If one wants to have more speed can try using ultrafast mode, but the speed 
improvement is negligible.

Original comment by olimpier...@gmail.com on 5 Jan 2013 at 4:06

GoogleCodeExporter commented 9 years ago 
In version 8 the issue should be fixed

Original comment by olimpier...@gmail.com on 7 Jan 2013 at 5:27

GoogleCodeExporter commented 9 years ago 
This is odd, I've just tried v.9 and the sound cracks are still audible (albeit 
not as loud as before) when the tape is being played but not emitting sound 
(ie. between loading blocks).

Original comment by iceknigh...@gmail.com on 21 Jan 2013 at 11:12

GoogleCodeExporter commented 9 years ago 
Please provide an example of game with this problem.

Is it with 128k emulation?

Original comment by olimpier...@gmail.com on 21 Jan 2013 at 1:24

GoogleCodeExporter commented 9 years ago 
I've just tried Chase HQ and it seems to happen at the moment the tape has a 
big silence, but only in 128K mode.

Original comment by iceknigh...@gmail.com on 21 Jan 2013 at 5:17

Attachments:

GoogleCodeExporter commented 9 years ago 
The TZX I posted doesn't seem to fully load in this emu for some reason, by the 
way. It does in every other one I've tested.

Original comment by iceknigh...@gmail.com on 21 Jan 2013 at 5:21

GoogleCodeExporter commented 9 years ago 
Chase H. Q. loads only in 48k mode since the tape stops only in 48k mode.

Original comment by olimpier...@gmail.com on 27 Jan 2013 at 2:16

GoogleCodeExporter commented 9 years ago 
I disabled the AY emulation during the tape loading to speed up the emulation. 
This should solve the issue in 128K mode.

Original comment by olimpier...@gmail.com on 27 Jan 2013 at 8:46

GoogleCodeExporter commented 9 years ago 
Just wondering, is disabling the AY during tape loading something the real 
hardware did, or is it just a temporary patch while the noise during turbo mode 
is being sorted out?

Original comment by iceknigh...@gmail.com on 28 Jan 2013 at 12:34

GoogleCodeExporter commented 9 years ago 
No, it is a patch to speed up the emulation and avoid the noise. The AY 
emulation it is not necessary since it is not used by the loading routine.

The real hardware has a dedicated chip for it.

Original comment by olimpier...@gmail.com on 28 Jan 2013 at 9:01

GoogleCodeExporter commented 9 years ago 
This issue should be fixed in v10

Original comment by olimpier...@gmail.com on 24 Mar 2013 at 6:36