48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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#ifndef __SINE_MAKE_H_
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#define __SINE_MAKE_H_
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#include "generic/typedef.h"
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#define DEFAULT_SINE_SAMPLE_RATE 16000
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#define SINE_TOTAL_VOLUME 26843546//16106128//20132660 //26843546
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struct sin_param {
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//int idx_increment;
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int freq;
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int points;
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int win;
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int decay;
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};
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int sin_tone_make(void *_maker, void *data, int len);
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void *sin_tone_open(const struct sin_param *param, int num, u8 channel, u8 repeat);
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int sin_tone_points(void *_maker);
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void sin_tone_close(void *_maker);
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/*
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*********************************************************************
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* Description: 正弦信号生成
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* Arguments : fc 信号中心频率
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* fs 信号采样率
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* buf 数据输出地址
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* len 数据生成长度，单位是bytes
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* Return : None.
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* Note(s) : None.
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*********************************************************************
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*/
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void sin_pcm_fill(int fc, int fs, void *buf, u32 len);
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/*
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*********************************************************************
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* Description: 扫频信号生成
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* Arguments : fs 信号采样率
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* buf 数据输出地址
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* len 数据生成长度，单位是bytes
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* Return : None.
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* Note(s) : None.
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*********************************************************************
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*/
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void sweepsin_pcm_fill(int fs, void *buf, u32 len);
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#endif/*__SINE_MAKE_H_*/
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