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DSP Counter Problem

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DSP Counter Problem

Postby aronb » Mon Nov 13, 2017 1:40 am

Hi,

I have seen other questions about counters used for wave positions and do not know if this is related.

I have a counter (actually happens with both, 1 is mine, other is not) that stop counting with small increments in the counter, in the DSP code.

Counter_Issue_01.fsm
Need help please
(78.53 KiB) Downloaded 9 times

I can't seem to fix it... When the counter is started it works fine, but stops at interesting places... as shown here at 4096 :shock:

Other values of step increments produce similar results also at interesting binary number boundaries.

Thanks for any help please :?

Aron
aronb
 
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Location: Florida, USA

Re: DSP Counter Problem

Postby Spogg » Mon Nov 13, 2017 10:25 am

The problem is down to the limitations of single precision float values.
This issue can also make large wave files go out of tune when playing back at reduced fractional speed: The smaller index incrementation values become imprecise.

I've attached a solution using Double Precision prims.
Also there's a little tookit included (not by me).

Hope this helps.

Cheers

Spogg
Attachments
Counter_Issue_01 -Spogged .fsm
(213.92 KiB) Downloaded 17 times
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Re: DSP Counter Problem

Postby aronb » Mon Nov 13, 2017 2:55 pm

Thank You for helping me out Spogg 8-) ! ! !

I was not aware that you could build something like that using simple primitives that way... I have way more to learn I guess!

Aron :D
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Posts: 99
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Location: Florida, USA

Re: DSP Counter Problem

Postby Spogg » Tue Nov 14, 2017 11:19 am

aronb wrote:I was not aware that you could build something like that using simple primitives that way... I have way more to learn I guess!


We all do mate. It never ends, one of the reasons I love FS so much!
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