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transpose metallic noise

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transpose metallic noise

Postby Logado » Tue Jan 20, 2015 5:32 pm

Hi. this schematic load file and transposes via MIDI messages. Work fine but, 60 (base) sound clear 62,64,65 etc. I hear the metallic noise.
What did I do wrong?
How i can fix this?
Attachments
example.fsm
(320.9 KiB) Downloaded 670 times
Logado
 
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Re: transpose metallic noise

Postby KG_is_back » Tue Jan 20, 2015 6:37 pm

The problem is interpolation. Your schematic uses linear interpolation, which produces quite a lot of aliasing when sample is transposed. Search for better interpolation methods - there are plenty examples...
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