Using digital microphone INMP441 to collect data, with known sensitivity of -26dbFS, how should we convert the output data into sound pressure value? code: #define I2S_PORT I2S_NUM_0 #define I2S_SCK 14 #define I2S_WS 15 #define I2S_SD 32 const int BLOCK_SIZE = 128; void i2s_install(){ const i2s_conf...

使用I2S采集音频数据，目前数据可以成功采集，不过这并不是我最终希望得到的数据，根据datasheet得知INMP441有着-26dBFS的灵敏度，那么请问应当怎样将输出结果转换成声压值？ 代码如下： #define I2S_PORT I2S_NUM_0 #define I2S_SCK 14 #define I2S_WS 15 #define I2S_SD 32 const int BLOCK_SIZE = 128; void i2s_install(){ //配置I2S const i2s_config_t i2s_config = { .mode = i2s_mode_t(I2S_MODE...