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esp_err_tes8311_set_mic_gain(es8311_mic_gain_tgain_db)
{
esp_err_tres=ESP_OK;
res=es8311_write_reg(ES8311_ADC_REG16, gain_db); // MIC gain scalereturnres;
}
在我的应用中我需要更改麦克风的增益大小,默认的增益太大了用不了。
![image](https://private-user-images.githubusercontent.com/52393677/342072936-69ec11ee-ec91-43d9-be13-bf0727dd6cd8.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.t9lSPqrRRLe_1rxJqFMA8JSn07ytsQN50hXoJ_qIKC4)
![image](https://private-user-images.githubusercontent.com/52393677/342072926-108599bd-159d-43e9-ae2a-ba073bb1cb5e.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.nnuuEXogd8k5R6jZ3ys7jFOfbXN0qPybnbsqeOWSACg)
![image](https://private-user-images.githubusercontent.com/52393677/342072977-48128d6d-5573-415c-8fc7-afca0c1efdaf.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.ECG8hcan3eQr4OoR-bbY6nU_CQdHHC8rAA7Jbj8MBnU)
我看到board_def.h,有一个增益大小定义。还有在es8311.c中有一个修改增益的函数。我修改成12DB,但是均不成功。
而且在使用es8311中的更改增益函数后,发现录音的文件更是直接没有声音,估计是增益过于的小。
我想要知道如何修改mic麦克风的增益大小。
我发现这个设定的增益的宏定义根本没有被调用。
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