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#include "AudioMultiply_F32.h" |
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void AudioMultiply_F32::update(void) { |
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audio_block_f32_t *block, *in; |
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block = AudioStream_F32::receiveWritable_f32(0); |
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if (!block) return; |
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in = AudioStream_F32::receiveReadOnly_f32(1); |
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if (!in) { |
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release(block); |
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return; |
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} |
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arm_mult_f32(block->data, in->data, block->data, AUDIO_BLOCK_SAMPLES); |
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release(in); |
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transmit(block); |
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release(block); |
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} |
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/*
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* AudioMultiply |
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*
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* Created: Patrick Radius, December 2016 |
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* Purpose: Multiply two channels of audio data. Can be used for example as 'vca' or amplitude modulation. |
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* Assumes floating-point data. |
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*
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* This processes a single stream fo audio data (ie, it is mono)
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*
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* MIT License. use at your own risk. |
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*/ |
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#ifndef AUDIOMULTIPLYF32_H |
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#define AUDIOMULTIPLYF32_H |
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#include <arm_math.h> |
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#include <AudioStream_F32.h> |
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class AudioMultiply_F32 : public AudioStream_F32 |
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{ |
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public: |
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AudioMultiply_F32(void) : AudioStream_F32(2, inputQueueArray_f32) {}; |
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void update(void); |
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private: |
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audio_block_f32_t *inputQueueArray_f32[2]; |
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}; |
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#endif |
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