LL_I2S_InitTypeDef::AudioFreq field
Specifies the frequency selected for the I2S communication. This parameter can be a value of I2S_LL_EC_AUDIO_FREQ Audio Frequency can be modified afterwards using Reference manual formulas to calculate Prescaler Linear, Parity and unitary functions LL_I2S_SetPrescalerLinear() and LL_I2S_SetPrescalerParity() to set it.