Jet Fighter cassette WAV recording

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Par Buleste

Master (158)

Portrait de Buleste

16-01-2016, 17:26

Manuel wrote:

I consider WAV the same as audible sound, but then in some file format Smile

Did you try the WAV in the zip file you linked to with the real MSX? If not, please do so.

Still having issues with the wav but the cas works which is the main thing.

Par mars2000you

Enlighted (6267)

Portrait de mars2000you

16-01-2016, 20:14

Buleste wrote:
Manuel wrote:

I consider WAV the same as audible sound, but then in some file format Smile

Did you try the WAV in the zip file you linked to with the real MSX? If not, please do so.

Still having issues with the wav but the cas works which is the main thing.

I completely agree with that, CAS files are so easy to use. For me, good WAV files are required only in 2 cases:

a) to create good CAS files
b) to use them when CAS files don't work (very rare case, maybe 1% of the games !)

Par Manuel

Ascended (18876)

Portrait de Manuel

17-01-2016, 11:37

I'm only asking because it would only be useful to investigate why the WAV file is not working in openMSX if it is confirmed that it is working on real MSX.

Par Buleste

Master (158)

Portrait de Buleste

17-01-2016, 12:19

At the moment even if I use cas2wav and convert the working cas back to a wav the wav doesn't work on a real MSX so it's rather confusing. It may be that I have it too loud or it could be interference. I'm not entirely sure.

Par Manuel

Ascended (18876)

Portrait de Manuel

17-01-2016, 15:01

OK thanks. You get the same problems as I saw then? ("Direct statement in file").

Par Buleste

Master (158)

Portrait de Buleste

17-01-2016, 16:02

Depends if I play with the volume or not. I get different messages. Device I/O error. Direct statement in file. If I get the volume close to being right I get the beginning of a BASIC file that is corrupt. I may try a different player on my phone to see if that makes a difference.

Par hit9918

Prophet (2923)

Portrait de hit9918

17-01-2016, 22:57

The file (not the header) begins with a quotation mark and a comma. When I read it with my eyes Smile
There are nice clear slopes.

But openmsx reads the first two bytes different. when I read it with BASIC input as #1.
And there are 1 bits where the slope ran above the 0 line. But one can clearly see what it was meant to be.
This issue is separate from direct statement in file issues.
openmsx makes analog style slopes in output, but does it have analog simulation on input?
Maybe this file is a nice test case.

How to make an analog simulation.
When that slope is falling. The angle, the delta between two samples, is negative.
Looking at it this way it doesnt disturb when it slipped onto the wrong side of the 0 line.
Add the deltas to a swinging point. And damp it with point = point * 0.9 or so.
Just an idea.

Par Buleste

Master (158)

Portrait de Buleste

18-01-2016, 15:40

Okay converting the cas back to wav does work now. Just need to try VLC for android to see if that's better than Walkman for playing back WAVs.

Par Manuel

Ascended (18876)

Portrait de Manuel

18-01-2016, 20:44

Do you have a link for the cas converted back to wav?

Par Buleste

Master (158)

Portrait de Buleste

19-01-2016, 12:28

Not yet but I will. Give me a sec.

EDIT:
Here it is

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