Standard I2S vs LSBJ (EIAJ)

Latiful Hayat

in esp8266audio library

ESP32:

out = new AudioOutputI2S();
out->SetLsbJustified(true);

based on AudioOutputI2S.cpp:

      else if (lsb_justified)
      {
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 2, 0)
        comm_fmt = (i2s_comm_format_t) I2S_COMM_FORMAT_STAND_MSB;
#else
        comm_fmt = (i2s_comm_format_t) (I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_LSB);
#endif
      }
      else
      {
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 2, 0)
        comm_fmt = (i2s_comm_format_t) (I2S_COMM_FORMAT_STAND_I2S);
#else
        comm_fmt = (i2s_comm_format_t) (I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB);
#endif
      }

ESP8266:
Remove I2STMS in file: C:\Users\USER\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\core_esp8266_i2s.cpp

// I2SRMS, I2STMS = 1-bit delay from WS to MSB (I2S format), I2SRMS: Receiver, I2STMS: Transmitter
//i2sc_temp |= I2SRF | I2SMR | I2SRMS | I2STMS | (div1 << I2SBD) | (div2 << I2SCD);
i2sc_temp |= I2SRF | I2SMR | I2SRMS | (div1 << I2SBD) | (div2 << I2SCD);