int16 table values don't work

Tarcisio León Drusin

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Mar 21, 2024, 11:22:59 PMMar 21

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Tried using the included table "

cos4096_int16.h" but I get the error:

Compilation error: no matching function for call to 'Oscil<4096, 32768>::Oscil(const int16_t [4096])'

I guess Oscil is not made for int values??
Is there any way to fix it?

Thanks!

Tarcisio León Drusin

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Mar 21, 2024, 11:23:25 PMMar 21

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I'm trying to make a more precise LFO

Tarcisio León Drusin

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Mar 23, 2024, 2:10:54 PMMar 23

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Oh ok, I think I get it. I need to use a int8 table and use the smooth or average function

Tarcisio León Drusin

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Mar 24, 2024, 5:59:43 PMMar 24

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Well... it's not the same. Using fast LFOs will not work with smoothness

tomco...@live.fr

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Mar 25, 2024, 5:23:49 AMMar 25

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Hello!

Sorry for the late reply!

Indeed, as you have figured out, mozzi does not support 16bits oscillators. There have been of work done in that direction but it is not as simple as it seems and rarely actually useful on MCU.

Smoothing a scaled up value is the way to go if you want to increase the resolution. I would probably try first with a LowPassFilter (or LowPassFilter16 depending on your MCU and code). Depending on the extreme values of the LFO, you might need to change the cutoff frequency of the lpf on the fly.

Do not hesitate to provide a snipset of code if you want more accurate suggestions!

Best,

Tarcisio León Drusin

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Mar 25, 2024, 3:21:56 PMMar 25

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Oh ok I see, adjusting the smooth value according to the speed is a great idea!
Thanksss :)

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