TLV320AIC3262: Line-In Function noise issue

Hi

The customer has sorted out the following 7 Registers related to Line-In, I would like to ask the following 2 questions:

(1) Which position of the Block Diagram do the following 7 Registers correspond to?

(2) Among these 7 items, which Item will affect the truncated waveform?

1. 1695    INT  2      Receiver Amplifier Volume                71 256

   #define AIC3262_REC_AMP_CNTL_R5                MAKE_REG(0, 1, 40)

   #define AIC3262_RAMPR_VOL            MAKE_REG(0, 1, 41)

2. 1698    INT  1      LINE-IN Volume                           6

   #define AIC3262_ADC_ADAP_COEF_VOL3_1    MAKE_REG(40, 1, 48)

   #define AIC3262_ADC_ADAP_COEF_VOL3_2    MAKE_REG(40, 1, 49)

   #define AIC3262_ADC_ADAP_COEF_VOL3_3    MAKE_REG(40, 1, 50)

   #define AIC3262_ADC_ADAP_COEF_VOL3_4    MAKE_REG(40, 9, 112)

   #define AIC3262_ADC_ADAP_COEF_VOL3_5    MAKE_REG(40, 9, 113)

   #define AIC3262_ADC_ADAP_COEF_VOL3_6    MAKE_REG(40, 9, 114)

3. 1699    INT  2      PCM Capture Volume                       152 152

   #define AIC3262_LADC_VOL               MAKE_REG(0, 0, 83)

   #define AIC3262_RADC_VOL               MAKE_REG(0, 0, 84)

4. 1700    INT  2      MicPGA Volume Control                    0 0

   #define AIC3262_MICL_PGA               MAKE_REG(0, 1, 59)

   #define AIC3262_MICR_PGA               MAKE_REG(0, 1, 60)

5. 1701    INT  2      PCM Capture Fine Gain Volume             5 5

   #define AIC3262_ADC_FINE_GAIN             MAKE_REG(0, 0, 82)

6. 1942    INT  1      MA Right PGA Mixer Right MicPGA Volume   0

   #define AIC3262_RADC_PGA_MAR_VOL    MAKE_REG(0, 1, 19)

7. 1944    INT  1      MA Left PGA Mixer Left MicPGA Volume     0

   #define AIC3262_LADC_PGA_MAL_VOL     MAKE_REG(0, 1, 18)