2023-04-23 21:24:45 +08:00
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#pragma once
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#include "inttypes.h"
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2023-04-23 21:36:04 +08:00
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#define q15_t int16_t
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#define q31_t int32_t
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2023-04-23 21:24:45 +08:00
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2023-04-24 01:05:42 +08:00
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#define FFT_BIN(num, re) (uint16_t)((float)(num + 0.5) * re)
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#define FFT_INDEX(freq, re) (uint16_t)((float)freq / re)
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2023-04-23 21:24:45 +08:00
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2023-04-24 01:05:42 +08:00
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int FFT(q15_t *data);
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