66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
#ifndef __REVERB_DEAL
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#define __REVERB_DEAL
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#include "typedef.h"
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struct __EF_REVERB_PARM_ {
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unsigned int deepval; //调节混响深度，影响的是pre-delay ：0-4096，4096代表max_ms
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unsigned int decayval; // 衰减系数: 调节范围0-4096
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unsigned int filtsize; // 0-4096, 如果 要回声效果的话，将它置0
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unsigned int wetgain; //湿声增益： 0到4096
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unsigned int drygain; //干声增益： 0到4096
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unsigned int sr; // 配置输入的采样率
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unsigned int max_ms; //所需要的最大延时
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unsigned int centerfreq_bandQ; //留声机音效，不需要的话，请置0
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};
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/*
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1.EFFECT_PITCH_SHIFT 移频，变调不变速，init_parm.shiftv调节有效，init_parm.formant_shift调节无效
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2.EFFECT_VOICECHANGE_KIN0 变声，可以调节不同的 init_parm.shiftv 跟 init_parm.formant_shift ，调出更多的声音效果
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3.EFFECT_VOICECHANGE_KIN1 变声，同EFFECT_VOICECHANGE_KIN0类似的，但是2者由于运算的不同，会有区别。
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4.EFFECT_ROBORT 机器音效果，类似 喜马拉雅那样的
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5.EFFECT_AUTOTUNE 电音效果
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*/
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enum {
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EFFECT_PITCH_SHIFT = 0x00,
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EFFECT_VOICECHANGE_KIN0,
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EFFECT_VOICECHANGE_KIN1,
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EFFECT_ROBORT,
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EFFECT_AUTOTUNE,
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};
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struct __PITCH_SHIFT_PARM_ {
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u32 sr; //input audio samplerate
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u32 shiftv; //pitch rate: <8192(pitch up), >8192(pitch down)
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u32 effect_v;
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s32 formant_shift;
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};
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struct __HOWLING_PARM_ {
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int threshold; //初始化阈值
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int depth; //陷波器深度
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int bandwidth;//陷波器带宽
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int attack_time; //门限噪声启动时间
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int release_time;//门限噪声释放时间
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int noise_threshold;//门限噪声阈值
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int low_th_gain; //低于门限噪声阈值增益
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int sample_rate;
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int channel;
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};
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void echo_mic_gain_change(int gain);
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void echo_deal_set_reverb_param(void *reverb);
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void echo_deal_set_pitch_param(void *pitch);
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void echo_deal_pitch_en(void); //打开变调功能
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void echo_deal_pitch_unable(void); //关闭变调功能
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int echo_reverb_init(u32 resample_sr, u32 sample_rate, u8 enc_channel_bit_map, u8 enc_volume, u8 dec_volume, void *reverb, void *pitch, void *howling, void (*cb)(void *, u32));
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int echo_reverb_uninit(void);
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void echo_deal_start(void);
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void echo_deal_pause(void);
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#endif
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