add noise and industrial
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@ -81,6 +81,7 @@ int sendKarplusStrongSound(uint16_t f /*Hz*/, uint8_t T /* 1/DIVIDER sec*/) {
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for (uint32_t i=(uint32_t) sr*T/DIVIDER; i>0; i--) {
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// current amplitude to play is the highest byte of buf[bh]
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#define NOISEINDUSTRIAL 1
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#if NOISEINDUSTRIAL
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OCR2A = buf[bh];
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#else
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