85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
#include "audio_spectrum.h"
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#if AUDIO_SPECTRUM_CONFIG
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/*----------------------------------------------------------------------------*/
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/**@brief 频响输出例子
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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void spectrum_get_demo(void *p)
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{
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spectrum_fft_hdl *hdl = p;
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if (hdl) {
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u8 db_num = audio_spectrum_fft_get_num(hdl);//获取频谱个数
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short *db_data = audio_spectrum_fft_get_val(hdl);//获取存储频谱值得地址
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if (!db_data) {
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return;
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}
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for (int i = 0; i < db_num; i++) {
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//输出db_num个 db值
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printf("db_data db[%d] %d\n", i, db_data[i]);
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}
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}
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}
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/*----------------------------------------------------------------------------*/
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/**@brief 打开频响统计
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@param sr:采样率
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@return hdl:句柄
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@note
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*/
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/*----------------------------------------------------------------------------*/
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spectrum_fft_hdl *spectrum_open_demo(u32 sr, u8 channel)
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{
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spectrum_fft_hdl *hdl = NULL;
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spectrum_fft_open_parm parm = {0};
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parm.sr = sr;
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parm.channel = channel;
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parm.attackFactor = 0.9;
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parm.releaseFactor = 0.9;
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parm.mode = 2;
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hdl = audio_spectrum_fft_open(&parm);
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/* int ret = sys_timer_add(hdl, spectrum_get_demo, 500);//频谱值获取测试 */
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clock_add(SPECTRUM_CLK);
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return hdl;
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}
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/*----------------------------------------------------------------------------*/
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/**@brief 关闭频响统计
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@param hdl:句柄
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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void spectrum_close_demo(spectrum_fft_hdl *hdl)
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{
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audio_spectrum_fft_close(hdl);
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clock_remove(SPECTRUM_CLK);
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}
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spectrum_fft_hdl *spec_hdl;
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/*----------------------------------------------------------------------------*/
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/**@brief 切换频响计算
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@param en:0 不做频响计算， 1 使能频响计算（通话模式，需关闭频响计算）
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@return
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@note
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*/
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/*----------------------------------------------------------------------------*/
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void spectrum_switch_demo(u8 en)
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{
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if (spec_hdl) {
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audio_spectrum_fft_switch(spec_hdl, en);
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}
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}
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#else
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void spectrum_switch_demo(u8 en)
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{
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}
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#endif
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