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[参考译文] TLV320AIC3268:如何使用tlv320aic3268降低录制和回放时的白噪声

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Other Parts Discussed in Thread: TLV320AIC3268

请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/audio-group/audio/f/audio-forum/760891/tlv320aic3268-how-to-reduce-white-noise-when-recording-and-playback-with-tlv320aic3268

部件号:TLV320AIC3268

当我使用tlv320aic3268从 麦克风录制语音并播放它时,我会发现白噪声。 白噪声影响语音质量。其频率分布为0到FS/2。 因此,使用FIR滤波器后,我也能听到高噪音。

采样和量化时ADC中是否产生白噪声?

如何在miniDSP GDE中配置3268以减少白噪声?

我应该如何使声音清晰?

谢谢!

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    您好,

    AIC3268不应因白噪声而使录制质量失真。 您是否对正在捕获的噪音有一些数字或测量值? 请考虑应正确完成设备配置以避免噪音问题,能否提供用于配置编解码器的寄存器设置? 此外,您是否正在使用EVM进行此测试?

    此致,

     -Diego Mel é ndez López ñ a
      音频应用工程师

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    我有一个录制文件,如图所示。 我发现它的频率是从0到MATLAB中的FS/2(Hz)。

    如图所示配置编解码器。

    当我使用FIR滤波器时,它也能清楚地听到噪音。

    //控件位置
    typedef结构{
    u8 control_page; //系数页面位置
    u8 control_base; //系数基本地址在页面内
    u8 control_mute_flag; //非零表示需要静音
    u8 control_string_index;//字符串表索引
    }控件;
    
    
    静态控制MUX_controls[]={
    };
    
    静态字符串MUX_control_names []={
    };
    
    静态控制volume_controls[]={
    };
    
    静态字符串volume_control_names []={
    };
    
    //说明和
    结构系数f pedet {
    U8 REG_OFF;
    u8 reg_val;
    } reg_value;
    
    静态字符串REG_Section_Names []={
    "miniDSP_A_REG_VALUES",
    "miniDSP_D_REG_VALUES",
    };
    
    REG_VALUE REG_Section_program[]={
    {0,0x0},
    { 0x7F,0x00},
    //			#设置AutoINC.
    {121,0x01},
    //			# reg[0][0][1]= 0x01 ; REG(0)(1)(0x00 => 0) S/W重置
    { 1,0x01},
    	
    	
    //			# reg[0][0][4]= 0x33 ; ADC_CLKIN = MCLK,DAC_CLKIN = MCLK
    { 4,0x33},
    	
    	
    	
    //			# reg[0][0][5]= 0x00 ; PLL_CLKIN = MCLK1
    { 5,0x00},
    	
    	
    	
    //			# reg[0][0][6]= 0x91 ; P=1,R=1
    { 6,0x91},
    	
    	
    	
    //			# reg[0][0][7]= 0x08 	;P=1,R=1,J=8;DOSR = 128 (MSB);DOSR = 128 (LSB);NADC断电NADC = 2;mAdc Powerup mAdc = 16;AOSR = 64;P=1,R=1,J=8; DOSR = 192 (MSB);DOSR = 192 (LSB);NADC断电NADC = 2;mAdc通电mAdc = 16;AOSR = 96;P=1,R=1,J=8; DOSR = 256 (MSB);DOSR = 256 (LSB);NADC断电NADC = 2;mAdc通电mAdc = 16;AOSR = 128;P=1,R=1,J=24; DOSR = 384 (MSB);DOSR = 384 (LSB);NADC断电NADC = 2;mAdc通电mAdc = 16;AOSR = 192;P=1,R=1,J=16; DOSR = 512 (MSB);DOSR = 512 (LSB);NADC断电NADC = 2;mAdc通电mAdc = 16;AOSR = 256;P=1,R=1,J=24; DOSR = 768 (MSB);DOSR = 768 (LSB);NADC断电NADC = 2;mAdc通电mAdc = 24;AOSR = 256;P=1,R=1,J=8
    { 7,0x08},
    //			# reg[0][0][13]= 0x00 	;DOSR = 128 (MSB)
    {13,0x00},
    //			# reg[0][0][14]= 0x80 	; DOSR =128 (LSB)
    {14,0x80},
    //			# reg[0][0][18]= 0x02 	;NADC断电NADC = 2
    {18,0x02},
    //			# reg[0][0][19]= 0x88 	; NADC加电mAdc =8
    {19,0x88},
    //			# reg[0][0][20]= 0x80 	;AOSR =128
    {20,0x80},
    //			# reg[0][0][11]= 0x82 	;P=1,R=1,J=24;DOSR =768 (MSB);DOSR =768 (LSB);NADC断电NADC =2;NADC断电mAdc =48;AOSR =128;NDAC =2,分配器断电;NDAC =2, 分禾器已关闭
    {11,0x82},
    //			# reg[0][0][8]= 0x00 ; D=0000 (MSB)
    {8,0x00},
    //			# reg[0][0][9]= 0x00 ; D=0000 (LSB)
    {9,0x00},
    //			# reg[0][0][12]= 0x88 ; reg(0)(0)(0x0c => 12) DAC加电MDAC =8
    {12,0x88},
    { 0x7F,0x78},
    //			# reg[120][0][50]= 0x82 ;插值比率为2,FIFO =启用
    {50,0x82},
    { 0x7F,0x64},
    //			# reg[100][0][50]= 0xa1. ;小数比为1,CIC AutoNorm =已启用,FIFO =已启用
    {50,0xA1},
    { 0x7F,0x00},
    //			# reg[0][0][60]= 0x00 ; reg(0)(0)(0)(0x3c => 60) DAC程序模式,DAC和ADC过滤器引擎一起通电 ; reg(0)(0)(0)(0x3c => 60) DAC程序模式,DAC和ADC滤波器引擎未同时通电
    { 60,0x00},
    //			# reg[0][0][61]= 0x00 ; REG(0)(0)(0)(0x3D => 61) ADC程序模式
    {61,0x00},
    //			# reg[0][0][83]= 0x0 	; ADC vol控制= 0dB
    {83,0x00},
    //			# reg[0][0][84]= 0x0 	; ADC vol控制= 0dB
    {84,0x00},
    { 0,0x01},
    //			# reg[0][1][1]= 0x00 ; REG(0)(1)(0x01 => 0) AVDD原油不可用
    { 1,0x00},
    //			# reg[0][1][3]= 0x00 ; REG(0)(1)(0x03 =>3) LDAC FIR
    { 3,0x00},
    //			# reg[0][1][4]= 0x00 ; REG(0)(1)(0x04 => 4) RDAC FIR
    { 4,0x00},
    //			# reg[0][1][31]= 0x80 ; reg(0)(1)(0x1F =>31) HP处于地面中心模式;HPL增益0 dB
    { 31,0x80},
    //			# reg[0][1][32]= 0x00 ; reg(0)(1)(0x20 =>32) HPR独立增益0 dB
    { 32,0x00},
    //			# reg[0][1][33]= 0x28 ; reg(0)(1)(0x21 =>33) 供油泵在OSC / 4上运行
    {33,0x28},
    //			# reg[0][1][34]= 0x33 ; reg(0)(1)(0x22=>34) 设置CP模式
    {34,0x33},
    //			# reg[0][1][35]= 0x10 ; reg(0)(1)(0x23 =>35) 使用HP启动CP
    {35,0x10},
    	
    //			# reg[0][1][52]= 0x40 ; REG(0)(1)(0x34 => 52) 为左侧P
    //{ 52,0x40}
    
    ,//			# reg[0][1][52]=0x54选择ADC IN1_L ; REG(0)(1)(0x34 => 52) 为左P选择ADC IN1_L in2_L in3_L
    {52,0x54},
    	
    	
    //			# reg[0][1][53]= 0x20 ; REG(0)(1)(0x35 => 53) 为左P选择ADC IN4_L
    {53,0x20},	
    	
    //			# reg[0][1][56]= 0x20 ; REG(0)(1)(0x38=>56) 为右侧P选择ADC IN4_R
    {56,0x20},	
    
    	
    //			# reg[0][1][54]= 0x40 ; REG(0)(1)(0x36 => 54) 选择ADC CM1作为左M
    { 54,0x40},
    	
    	
    //			# reg[0][1][55]= 0x40 ; REG(0)(1)(0x37 => 55) 为右侧P
    //{ 55,0x40},
    
    //			# reg[0][1][55]=0x54选择ADC IN1_R ; REG(0)(1)(0x37 => 55) 为右侧P选择ADC IN1_R in2_R in3_R
    {55,0x54},
    	
    
    	
    //			# reg[0][1][57]= 0x40 ; reg(0)(1)(0x39 => 57) 为右侧M选择ADC CM1
    {57,0x40},
    //			# reg[0][1][121]= 0x33 ; REG(0)(1)(0x79 => 121)麦克风输入的快速充电时间
    {121,0x33},
    //			# reg[0][1][122]= 0x01 ;REG(0)(1)(0x7A => 122)参考电压充电时间-40毫秒。
    {122,0x01},
    {0,0x0},
    { 0x7F,0x78},
    //			# reg[120][0][24]=0x80
    { 24,0x80},
    	
    	
    {255,0x00}, //跳转至miniDSPA
    {255,0x01}, //跳转至miniDSPD
    	
    	
    	
    {0,0x0},
    { 0x7F,0x28},
    //			# reg[40][0][1]= 0x04 ; ADC的自适应模式
    {1,0x04},
    { 0x7F,0x50},
    //			# reg[80][0][1]= 0x04 ; DAC自适应模式
    {1,0x04},
    { 0x7F,0x64},
    //			# reg[100][0][48]= 1;IDAC = 256 ; MDAC*DOSR;IMDAC=256 ; mAdc*AOSR;IDAC =512 ; MDAC*DOSR;IMDAC=512 ; mAdc*AOSR;IDAC =1024 ; MDAC*DOSR; IACD=1024 ; mAdc*AOSR;IDAC =1536 ; MDAC*DOSR;IAC=1536 ; mAdc*AOSR;IDAC =2048 ; MDAC*DOSR;MDAC=2048 ; MDAC*4096; AAC*AAC*; MDAC*AAC*; MDAC*; MDAC*4096; MDAC*AAC*AAC*; MDAC*AMOSR*; MDAC*; MDAC*5; MDAC*AAC*; MDAC*; AAC*AAC*144; AAC*AAC*AAC*; MDAC*; MDAC*; MDAC
    {48,0x01},
    //			# reg[100][0][49]= 0
    {49,0x00},
    {0x7F,0x78},
    //			# reg[120][0][48]= 1
    {48,0x01},
    //			# reg[120][0][49]= 0
    {49,0x00},
    { 0x7F,0x00},
    //			# reg[0][0][63]= 0xC2 ; reg(0)(0)(0)(0x3f => 63) DAC L&R DAC加电Ldata-LDAC RDATA-RDAC (软步进禁用)
    {63,0xC2},
    //			# reg[0][0][64]= 0x00 ; reg(0)(0)(0)(0x40 => 64) DAC左右DAC取消静音,但不会显示音量控制
    {64,0x00},
    
    
    
    
    	
    	
    //			# reg[0][0][65]= 0x30 ; REG(0)(0)(0)(0x41 => 65) DAC左音量控制设置
    {65,0x30},	
    	
    	
    	
    	
    	
    	
    	
    	
    //			# reg[0][0][81]= 0xC2 ; reg(0)(0)(0)(0x51 => d6) ADC加电数字模式下的左右通道(软步进禁用);REG(0)(0)(0)(0x51 => 81) ADC加电ADC左右通道(软步进禁用)
    {81,0xC2},
    //			# reg[0][0][82]= 0x00 ; REG(0)(0)(0)(0x52 => 82) ADC取消静音ADC左右通道,左,右精细增益=0dB
    {82,0x00},
    {0,0x01},
    	
    	
    //			# reg[0][1][27]= 0x33 ; REG(0)(1)(0x1B =>27) LDAC -> HPL,RDAC -> HPR;打开HPL + HPR
    //{27,0x33},
    
    
    //			# reg[0][1][22]= 0xC3 ; REG(0)(1)(0x16 =>22) LDAC -> LOL,RDAC -> Lor;Power On LOL + Lor
    { 22,0xC3},
    	
    	
    	
    //			# reg[0][1][59]= 0x00 ; reg(0)(1)(0x3b => 59) 使用0 dB增益取消ADC左麦克风PGA的静音
    {59,0x00},
    //			# reg[0][1][60]= 0x00 ; reg(0)(1)(0x3c =>60) 使用0 dB增益取消ADC右麦克风PGA的静音
    {60,0x00},
    {0,0x04},
    //			# reg[0][4][1]= 0 ; ASI1音频接口= I2S
    {1,0x00},
    //			# reg[0][4][10]=0 ; ASI1音频接口WCLK和BCLK
    { 10,0x00},
    //			# reg[0][4][8]= 0x50 ; ASI1左DAC数据路径=左数据,ASI1右DAC数据路径=右数据
    { 8,0x50},
    //			# reg[0][4][23]= 0x05;ASI2_IN_CH<L1,R1>= miniDSP_A_OUT _ch<L2,R2>
    {23,0x05},
    //			# reg[0][4][24]= 0x50;ASI2_OUT CH<L1>=通道<L1>;ASI2_OUT CH<R1>=通道<R1>
    { 24,0x50},
    //			# reg[0][4][39]= 0x06;ASI3_IN_CH<L1,R1>= miniDSP_A_OUT _ch<L3,R3>
    { 39,0x06},
    //			# reg[0][4][40]= 0x50;ASI3_OUT _CH<L1>=通道<L1>;ASI3_OUT _CH<R1>=通道<R1>
    {40,0x50},
    {0,0x0},
    { 0x7F,0x64},
    //			# reg[100][0][20]= 0x80;禁用ADC双缓冲模式;禁用DAC双缓冲模式;启用ADC双缓冲模式
    { 20,0x80},
    { 0x7F,0x78},
    //			# reg[120][0][20]= 0x80;启用DAC双缓冲模式
    { 20,0x80},
    { 0x7F,0x00},
    //			# reg[0][0][82]= 0
    {82,0x00},
    //			# reg[0][0][83]= 0
    {83,0x00},
    //			# reg[0][0][86]= 32
    {86,0x20},
    //			# reg[0][0][87]= 254
    {87,0xFE},
    //			# reg[0][0][88]= 0
    {88,0x00},
    //			# reg[0][0][89]= 104
    {89,0x68},
    //			# reg[0][0][90]= 168
    {90,0xA8},
    //			# reg[0][0][91]= 6
    {91,0x06},
    //			# reg[0][0][92]= 0
    {92,0x00},
    //			# reg[0][0][84]= 0
    {84,0x00},
    //			# reg[0][0][94]= 32
    {94,0x20},
    //			# reg[0][0][95]= 254
    {95,0xFE},
    //			# reg[0][0][96]= 0
    {96,0x00},
    //			# reg[0][0][97]= 104
    {97,0x68},
    //			# reg[0][0][98]=168
    {98,0xA8},
    //			# reg[0][0][99]=6
    {99,0x06},
    //			# reg[0][0][100]=0
    {100,0x00},
    };
    
    REG_VALUE miniDSP_A_REG_VALUES[]={
    {0,0x0},
    { 0x7F,0x28},
    {0,0x01},
    {8,0x00},
    {9,0xB7},
    { 10,0x98},
    {11,0x00},
    { 12,0x7E},
    { 13,0x90},
    {14,0xD0},
    {15,0x00},
    {16,0x7F},
    {17,0xFF},
    {18,0xFF},
    {19,0x00},
    {20,0x00},
    {21,0x00},
    {22,0x00},
    {23,0x00},
    {24,0x00},
    {25,0x00},
    {26,0x00},
    {27,0x00},
    {28,0xFF},
    { 290xFF},
    { 30,0xFF},
    {31,0x00},
    { 32,0x80 },
    {33,0x00},
    {34,0x00},
    {35,0x00},
    { 36,0x7F},
    {37,0xFF},
    { 380xFF},
    {39,0x00},
    {40,0x40},
    {41,0x00},
    { 42,0x00},
    {43,0x00},
    {44,0x00},
    {45,0x00},
    {46,0x00},
    {47,0x00},
    {48,0xFF},
    { 49,0xB7},
    {50,0x00},
    {51,0x00},
    { 52,0xFF},
    {53,0xF2},
    { 54,0x00},
    {55,0x00},
    { 56,0xF9},
    {570xBA},
    {58,0x00},
    {59,0x00},
    { 60,0xF9},
    {61,0x00},
    {62,0x00},
    {63,0x00},
    { 64,0xFF},
    {65,0x68},
    {66,0x00},
    {670x00},
    { 68,0xFE },
    {69,0x2C},
    {70,0x00},
    {71,0x00},
    { 72,0xEB},
    {73,0x8D},
    {74,0x00},
    {75,0x00},
    {76,0x03},
    { 77,0x83},
    {78,0x00},
    {79,0x00},
    { 80,0x01},
    {81,0xC3},
    {82,0x00},
    {83,0x00},
    {84,0x00},
    {85,0xD3},
    {86,0x00},
    {87,0x00},
    {88,0x00},
    {89,0x33},
    {90,0x00},
    {91,0x00},
    {92,0x00},
    {93,0x02},
    {94,0x00},
    {95,0x00},
    {96,0x32},
    { 97,0x08},
    {98,0x00},
    {99,0x00},
    {100,0x0A},
    {101,0xFA},
    {102,0x00},
    {103,0x00},
    {104,0x54},
    {105,0x7B},
    {106,0x00},
    {107,0x00},
    {0,0x09},
    {72,0x00},
    {73,0xB7},
    {74,0x98},
    {75,0x00},
    {76,0x7E},
    { 77,0x90},
    {780xD0},
    {79,0x00},
    { 80,0x7F},
    {81,0xFF},
    {82,0xFF},
    {83,0x00},
    {84,0x00},
    {85,0x00},
    {86,0x00},
    {87,0x00},
    {88,0x00},
    {89,0x00},
    {90,0x00},
    {91,0x00},
    {92,0xFF},
    {93,0xFF},
    {94,0xFF},
    {95,0x00},
    {96,0x80},
    {97,0x00},
    {98,0x00},
    {99,0x00},
    {100,0x7F},
    {101,0xFF},
    {102,0xFF},
    {103,0x00},
    {104,0x40},
    {105,0x00},
    {106,0x00},
    {107,0x00},
    {108,0x00},
    {109,0x00},
    {110,0x00},
    {111,0x00},
    {112,0xFF},
    {113,0xB7},
    {114,0x00},
    {115,0x00},
    {116,0xFF},
    {117,0xF2},
    {118,0x00},
    {119,0x00},
    {120,0xF9},
    {121,0xBA},
    {122,0x00},
    {123,0x00},
    {124,0xF9},
    {125,0x00},
    {126,0x00},
    {127,0x00},
    {0,0x0A},
    { 8,0xFF},
    {9,0x68},
    {10,0x00},
    {11,0x00},
    {12,0xFE},
    {13,0x2C},
    {14,0x00},
    {15,0x00},
    {16,0xEB},
    {17,0x8D},
    {18,0x00},
    {19,0x00},
    {20,0x03},
    {21,0x83},
    {22,0x00},
    {23,0x00},
    {24,0x01},
    { 25,0xC3},
    {26,0x00},
    {27,0x00},
    {28,0x00},
    { 290xD3 },
    { 30,0x00},
    {31,0x00},
    {32,0x00},
    {33,0x33},
    {34,0x00},
    {35,0x00},
    {36,0x00},
    {37,0x02},
    {380x00},
    {39,0x00},
    {40,0x32},
    {41,0x08},
    { 42,0x00},
    {43,0x00},
    { 44,0x0A},
    { 45,0xFA },
    {46,0x00},
    {47,0x00},
    {48,0x54},
    {49,0x7B},
    {50,0x00},
    {51,0x00},
    {0,0x0},
    { 0x7F,0x14},
    {0,0x01},
    {8,0xC0},
    {9,0x00},
    {10,0x00},
    {11,0x00},
    { 12,0xC0},
    {13,0x00},
    {14,0x00},
    {15,0x00},
    {0,0x0},
    { 0x7F,0x64},
    {0,0x01},
    { 8,0x08},
    {9,0x00},
    {10,0x00},
    {11,0x4D},
    {12,0x08},
    {13,0x00},
    {14,0x20},
    {15,0x4F},
    {16,0x48},
    {17,0x05},
    {18,0x00},
    {19,0x00},
    { 20,0x58},
    {21,0x60},
    { 22,0x08},
    {23,0x00},
    { 24,0x60},
    {25,0x60},
    {26,0x00},
    {27,0x00},
    {28,0x48},
    { 290x02},
    { 30,0x20},
    {31,0x00},
    {32,0x00},
    {33,0x00},
    {34,0x00},
    {35,0x00},
    { 36,0x44},
    {37,0x00},
    { 380xC0},
    {39,0x03},
    {40,0x00},
    {41,0x00},
    { 42,0x00},
    {43,0x00},
    {44,0x00},
    {45,0x00},
    {46,0x00},
    {47,0x00},
    {48,0x44},
    {49,0x00},
    {50,0x00},
    {51,0x03},
    { 52,0x21},
    {53,0x00},
    { 54,0x00},
    {55,0x00},
    { 56,0x03},
    {57,0x00},
    {58,0x00},
    {59,0x20},
    {60,0x00},
    {61,0x00},
    {62,0x00},
    {63,0x00},
    {64,0x45},
    {65,0x02},
    { 66,0xA0},
    {670x00},
    {680x00},
    {69,0x00},
    {70,0x00},
    {71,0x00},
    {72,0x01},
    { 73,0x00},
    { 74,0xE0},
    {75,0x10},
    {76,0x00},
    { 77,0x00},
    {78,0x00},
    {79,0x00},
    { 80,0x58},
    {81,0x60},
    {82,0x08},
    {83,0x01},
    {84,0x60},
    {85,0x60},
    {86,0x00},
    {87,0x00},
    { 88,0x58},
    { 89,0x60},
    {90,0x00},
    {91,0x09},
    {92,0x00},
    {93,0x00},
    {94,0x00},
    {95,0x00},
    {96,0x44},
    {97,0x00},
    {98,0xC0},
    {99,0x07},
    {100,0x04},
    {101,0x00},
    {102,0x00},
    {103,0x00},
    {104,0x04},
    {105,0x00},
    {106,0x20},
    {107,0x25},
    {108,0x04},
    {109,0x00},
    {110,0x00},
    {111,0x10},
    {112,0x04},
    {113,0x00},
    {114,0x20},
    {115,0x35},
    {116,0x00},
    {117,0x00},
    {118,0x00},
    {119,0x00},
    {120,0x00},
    {121,0x00},
    {122,0x00},
    {123,0x00},
    {124,0x44},
    {125,0x00},
    {126,0x00},
    {127,0x07},
    {0,0x02},
    { 8,0x21},
    {9,0x00},
    { 10,0x20},
    {11,0x00},
    { 12,0x4B},
    {13,0x00},
    {14,0xC0},
    {15,0x00},
    { 16,0x4B},
    {17,0x00},
    {18,0xE0},
    {19,0x00},
    {20,0x10},
    {21,0x00},
    {22,0x00},
    {23,0x00},
    {24,0x10},
    {25,0x00},
    {26,0x00},
    {27,0x25},
    {28,0x10},
    {29,0x00},
    { 30,0x00},
    { 31,0x10},
    { 32,0x10 },
    {33,0x00},
    {34,0x00},
    {35,0x35},
    { 36,0x18},
    {37,0x03},
    {380x00},
    {39,0x18},
    {40,0x1C},
    {41,0x02},
    { 42,0xE0},
    { 43,0x05},
    { 44,0x1C},
    {45,0x02},
    {46,0xE0},
    {47,0X0A},
    { 48,0x1C},
    {49,0x02},
    {50,0xC0},
    {51,0x07},
    { 52,0x1C},
    {53,0x02},
    { 54,0xC0},
    {55,0x08},
    { 56,0x1C},
    {57,0x02},
    {58,0xA0},
    {59,0x11},
    { 60,0x1C},
    {61,0x02},
    { 62,0xA0},
    { 63,0x1F},
    { 64,0x1C},
    {65,0x02},
    { 66,0x80},
    {67,0x14},
    { 68,0x1C},
    {69,0x02},
    { 70,0x80},
    { 71,0x1C},
    { 72,0x1C},
    { 73,0x02},
    {74,0x60},
    {75,0x01},
    { 76,0x1C },
    { 77,0x02},
    {78,0x60},
    {79,0XE},
    { 80,0x1C},
    {81,0x02},
    {82,0x40},
    {83,0x16},
    {84,0x1C},
    {85,0x02},
    {86,0x40},
    { 87,0x1A},
    { 88,0x1C},
    {89,0x02},
    {90,0x20},
    {91,0x03},
    {92,0x1C},
    {93,0x02},
    { 94,0x20 },
    {95,0x0C},
    {96,0x1C},
    {97,0x02},
    {98,0x00},
    {99,0x06},
    {100,0x1C},
    {101,0x02},
    {102,0x00},
    {103,0x09},
    {104,0x1C},
    {105,0x01},
    {106,0xE0},
    {107,0x02},
    {108,0x1C},
    {109,0x01},
    {110,0xE0},
    {111,0x0D},
    {112,0x1C},
    {113,0x01},
    {114,0xC0},
    {115,0x15},
    {116,0x1C},
    {117,0x01},
    {118,0xC0},
    {119,0x1B},
    {120,0x1C},
    {121,0x01},
    {122,0xA0},
    {123,0x17},
    {124,0x1C},
    {125,0x01},
    {126,0xA0},
    {127,0x19},
    {0,0x03},
    { 8,0x1C},
    {9,0x01},
    { 10,0x80},
    {11,0x04},
    { 12,0x1C},
    {13,0x01},
    {14,0x80},
    {15,0x0B},
    {16,0x1C},
    {17,0x01},
    {18,0x60},
    {19,0x13},
    { 20,0x1C},
    {21,0x01},
    { 22,0x60},
    { 230x1D},
    { 24,0x1C},
    {25,0x01},
    { 26,0x40},
    {27,0x0F},
    {28,0x1C},
    { 290x01},
    { 30,0x40},
    {31,0x00},
    { 32,0x18 },
    {33,0x01},
    {34,0x40},
    {35,0x34},
    { 36,0x1C},
    {37,0x01},
    { 380x40},
    {39,0x25},
    {40,0x1C},
    {41,0x01},
    { 42,0x60},
    { 43,0x38},
    { 44,0x10},
    {45,0x00},
    {46,0x00},
    {47,0x1F},
    { 48,0x1C},
    {49,0x01},
    {50,0x60},
    {51,0x42},
    { 52,0x1C},
    {53,0x01},
    { 54,0x80},
    {55,0x29},
    { 56,0x1C},
    {57,0x01},
    {58,0x80},
    {59,0x30},
    { 60,0x1C},
    {61,0x01},
    { 62,0xA0},
    {63,0x3c},
    { 64,0x1C},
    {65,0x01},
    { 66,0xA0},
    { 67,0x3E},
    { 68,0x1C},
    {69,0x01},
    { 70,0xC0},
    { 71,0x3A},
    { 72,0x1C},
    { 73,0x01},
    {74,0xC0},
    {75,0x40},
    { 76,0x1C },
    { 77,0x01},
    { 780xE0},
    {79,0x27},
    { 80,0x1C},
    {81,0x01},
    {82,0xE0},
    {83,0x32},
    {84,0x1C},
    {85,0x02},
    {86,0x00},
    {87,0x2B},
    { 88,0x1C},
    {89,0x02},
    {90,0x00},
    {91,0x2E},
    {92,0x1C},
    {93,0x02},
    { 94,0x20 },
    {95,0x28},
    {96,0x1C},
    {97,0x02},
    {98,0x20},
    {99,0x31},
    {100,0x1C},
    {101,0x02},
    {102,0x40},
    {103,0x3B},
    {104,0x1C},
    {105,0x02},
    {106,0x40},
    {107,0x3F},
    {108,0x1C},
    {109,0x02},
    {110,0x60},
    {111,0x26},
    {112,0x1C},
    {113,0x02},
    {114,0x60},
    {115,0x33},
    {116,0x1C},
    {117,0x02},
    {118,0x80},
    {119,0x39},
    {120,0x1C},
    {121,0x02},
    {122,0x80},
    {123,0x41},
    {124,0x1C},
    {125,0x02},
    {126,0xA0},
    {127,0x36},
    {0,0x04},
    { 8,0x1C},
    {9,0x02},
    { 10,0xA0},
    {11,0x44},
    { 12,0x1C},
    {13,0x02},
    {14,0xC0},
    {15,0x2c},
    {16,0x1C},
    {17,0x02},
    { 18,0xC0},
    {19,0x2D},
    { 20,0x1C},
    {21,0x02},
    { 22,0xE0},
    { 23,0x2A},
    { 24,0x1C},
    {25,0x02},
    { 26,0xE0},
    {27,0x2F},
    {28,0x1C},
    { 290x03},
    { 30,0x00},
    {31,0x3D},
    { 32,0x5C },
    {33,0x60},
    {34,0x40},
    {35,0x1F},
    { 36,0x5C},
    {37,0x90},
    { 38,0x80},
    {39,0x00},
    {40,0x5C},
    {41,0x90},
    { 42,0x20},
    {43,0x00},
    { 44,0x5C},
    { 45,0x90},
    {46,0x60},
    {47,0x00},
    {48,0x00},
    {49,0x00},
    {50,0x00},
    {51,0x00},
    {52,0x00},
    {53,0x00},
    { 54,0x00},
    {55,0x00},
    { 56,0x10},
    {57,0x00},
    {58,0x00},
    { 59,0x1F},
    { 60,0x10},
    {61,0x00},
    {62,0x00},
    {63,0x44},
    {64,0x18},
    {65,0x00},
    { 66,0x60},
    {67,0x20},
    { 68,0x1C},
    {69,0x00},
    { 70,0x80},
    { 71,0x22},
    { 72,0x1C},
    { 73,0x00},
    {74,0x40},
    { 75,0x1F},
    { 76,0x30 },
    { 77,0x00},
    {78,0x00},
    {79,0x22},
    { 80,0x1C},
    {81,0x00},
    {82,0x20},
    {83,0x23},
    {84,0x00},
    {85,0x00},
    {86,0x00},
    {87,0x00},
    {88,0x10},
    {89,0x30},
    {90,0x00},
    {91,0x21},
    {92,0x34},
    {93,0x00},
    {94,0x00},
    {95,0x21},
    {96,0x18},
    {97,0x00},
    {98,0x60},
    {99,0x45},
    {100,0x0C},
    {101,0x00},
    {102,0x40},
    {103,0x00},
    {104,0x1C},
    {105,0x00},
    {106,0x80},
    {107,0x47},
    {108,0x10},
    {109,0x30},
    {110,0x00},
    {111,0x22},
    {112,0x1C},
    {113,0x00},
    {114,0x40},
    {115,0x44},
    {116,0x30},
    {117,0x00},
    {118,0x00},
    {119,0x47},
    {120,0x1C},
    {121,0x00},
    {122,0x20},
    {123,0x48},
    {124,0x00},
    {125,0x00},
    {126,0x00},
    {127,0x00},
    {0,0x05},
    { 8,0x10},
    {9,0x30},
    {10,0x00},
    {11,0x46},
    { 12,0x34},
    {13,0x00},
    {14,0x00},
    {15,0x46},
    { 16,0x5C},
    {17,0x60},
    { 18,0xC0},
    {19,0x46},
    { 20,0x0C},
    {21,0x00},
    { 22,0x60},
    {23,0x00},
    { 24,0x5C},
    {25,0x60},
    { 26.0xA0},
    {27,0x21},
    {28,0x10},
    { 29,0x30 },
    { 30,0x00},
    { 31,0x47},
    { 32,0x10 },
    {33,0x13},
    {34,0xE0},
    {35,0x49},
    {36,0x00},
    {37,0x00},
    {380x00},
    {39,0x00},
    {40,0x10},
    {41,0x13},
    { 42,0xE0},
    { 43,0x24},
    { 44,0x09},
    {45,0x00},
    {46,0x00},
    {47,0x24},
    {48,0x09},
    {49,0x00},
    { 50,0x20},
    {51,0x49},
    { 52,0x05},
    {53,0x00},
    { 54,0x00},
    { 55,0x4A},
    { 56,0x05},
    {57,0x00},
    {58,0x20},
    { 59,0x4B},
    { 60,0x5C},
    { 61,0x60},
    {62,0x00},
    { 63,0x4A},
    { 64,0x5C},
    {65,0x60},
    {66,0x00},
    { 67,0x4B},
    {680x00},
    {69,0x00},
    {70,0x00},
    {71,0x00},
    {72,0x00},
    { 73,0x00},
    {74,0x00},
    {75,0x00},
    { 76,0x10},
    { 77,0x00},
    {78,0x40},
    { 79,0x4C},
    { 80,0x10},
    {81,0x00},
    {82,0x40},
    { 83,0x4E},
    {84,0x00},
    {85,0x00},
    {86,0x00},
    {87,0x00},
    {88,0x00},
    {89,0x00},
    {90,0x00},
    {91,0x00},
    {92,0x00},
    {93,0x00},
    {94,0x00},
    {95,0x00},
    {96,0x02},
    {97,0x00},
    {98,0x00},
    {99,0x00},
    {100,0x00},
    {101,0x00},
    {102,0x00},
    {103,0x00},
    };
    #define miniDSP_a_reg_values_Coeff_start 0#define
    miniDSP_a_reg_values_Coeff_size 216
    #define miniDSP_a_reg_values_INST_start 216
    #define miniDSP_a_reg_values_INST_size 583
    
    REG_VALUE miniDSP_D_REG_VALUES[]={
    {0,0x0},
    { 0x7F,0x50},
    {0,0x01},
    {8,0x00},
    {9,0x16},
    { 10,0xF0},
    {11,0x00},
    {12,0x00},
    { 13,0x2A},
    {14,0x99},
    {15,0x00},
    {16,0x00},
    {17,0x27},
    { 18,0x52},
    {19,0x00},
    { 20,0xFF},
    {21,0xF9},
    { 22,0x72},
    {23,0x00},
    { 24.0xFF},
    { 25,0x8D},
    { 26,0x50},
    {27,0x00},
    {28,0xFE},
    { 29,0xF0},
    { 30,0x07},
    {31,0x00},
    { 32,0xFE },
    {33,0x4C},
    {34,0x30},
    {35,0x00},
    { 36,0xFD},
    {37,0xED},
    {380x29},
    {39,0x00},
    {40,0xFE},
    {41,0x3b},
    { 42,0xCD},
    {43,0x00},
    { 44,0xFF},
    { 45,0x97 },
    {46,0x24},
    {47,0x00},
    {48,0x02},
    {49,0x29},
    {50,0xC7},
    {51,0x00},
    { 52,0x05},
    {53,0xD9},
    { 54,0x7F},
    {55,0x00},
    { 56,0x0A},
    {57,0x3D},
    {58,0x71},
    {59,0x00},
    {60,0x0E},
    {61,0x9A},
    { 62,0xD4},
    {63,0x00},
    {64,0x12},
    {65,0x1F},
    { 66,0xF3},
    {670x00},
    {68,0x14},
    {69,0x18},
    { 70,0x93},
    {71,0x00},
    {72,0x00},
    { 73,0x16},
    { 74,0xF0},
    {75,0x00},
    {76,0x00},
    { 77,0x2A},
    {78,0x99},
    {79,0x00},
    { 800x00},
    {81,0x27},
    {82,0x52},
    {83,0x00},
    {84,0xFF},
    {85,0xF9},
    {86,0x72},
    {87,0x00},
    {88,0xFF},
    {89,0x8D},
    {90,0x50},
    {91,0x00},
    {92,0xFE},
    { 93,0xF0},
    {94,0x07},
    {95,0x00},
    {96,0xFE},
    { 97,0x4C},
    {98,0x30},
    {99,0x00},
    {100,0xFD},
    {101,0xED},
    {102,0x29},
    {103,0x00},
    {104,0xFE},
    {105,0x3B},
    {106,0xCD},
    {107,0x00},
    {108,0xFF},
    {109,0x97},
    {110,0x24},
    {111,0x00},
    {112,0x02},
    {113,0x29},
    {114,0xC7},
    {115,0x00},
    {116,0x05},
    {117,0xD9},
    {118,0x7F},
    {119,0x00},
    {120,0x0A},
    {121,0x3D},
    {122,0x71},
    {123,0x00},
    {124,0x0E},
    {125,0x9A},
    {126,0xD4},
    {127,0x00},
    {0,0x02},
    { 8,0x12},
    { 9,0x1F},
    { 10,0xF3},
    {11,0x00},
    { 12,0x14},
    {13,0x18},
    {14,0x93},
    {15,0x00},
    {16,0xFF},
    {17,0xFF},
    {18,0xFF},
    {19,0x00},
    { 20,0x80},
    {21,0x00},
    {22,0x00},
    {23,0x00},
    {24,0x7F},
    {25,0xF7},
    {26,0x00},
    {27,0x00},
    {28,0x80},
    {29,0x09},
    { 30,0x00},
    {31,0x00},
    {32,0x7F},
    {33,0xEF},
    {34,0x00},
    {35,0x00},
    { 36,0x40},
    {37,0x00},
    {380x00},
    {39,0x00},
    {40,0x7F},
    {41,0xFF},
    { 42,0xFF},
    {43,0x00},
    {44,0x00},
    {45,0x00},
    {46,0x00},
    {47,0x00},
    {48,0xFF},
    {49,0xF8},
    {50,0x00},
    {51,0x00},
    { 52,0xFF},
    { 53,0xD8 },
    { 54,0x00},
    {55,0x00},
    { 56,0xFF},
    {570xF6},
    {58,0x00},
    {59,0x00},
    {60,0xFE},
    {61,0xBF},
    {62,0x00},
    {63,0x00},
    { 64,0x3A},
    { 65,0xD8 },
    {66,0x00},
    {670x00},
    {680x00},
    {69,0x15},
    {70,0x00},
    {71,0x00},
    {72,0x00},
    { 73,0x06},
    {74,0x00},
    {75,0x00},
    {76,0x00},
    {77,0x67},
    {78,0x00},
    {79,0x00},
    { 800x00},
    {81,0x4F},
    {82,0x00},
    {83,0x00},
    {84,0x01},
    {85,0xD5},
    {86,0x00},
    {87,0x00},
    { 88,0x24},
    {89,0x89},
    {90,0x00},
    {91,0x00},
    {92,0xFC},
    {93,0xAB},
    {94,0x00},
    {95,0x00},
    {96,0xFF},
    {97,0x19},
    {98,0x00},
    {99,0x00},
    {100,0xF3},
    {101,0xE3},
    {102,0x00},
    {103,0x00},
    {104,0x06},
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    {72,0x00},
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    { 800x00},
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    {83,0x00},
    {84,0xFF},
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    {125,0x9A},
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    {127,0x00},
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    {11,0x00},
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    {93,0x06},
    { 94,0x60 },
    {95,0x36},
    {96,0x1C},
    {97,0x06},
    {98,0x80},
    {99,0x38},
    {100,0x1C},
    {101,0x06},
    {102,0x80},
    {103,0x2D},
    {104,0x1C},
    {105,0x06},
    {106,0xA0},
    {107,0x34},
    {108,0x1C},
    {109,0x06},
    {110,0xA0},
    {111,0x31},
    {112,0x1C},
    {113,0x06},
    {114,0xC0},
    {115,0x35},
    {116,0x1C},
    {117,0x06},
    {118,0xC0},
    {119,0x30},
    {120,0x00},
    {121,0x00},
    {122,0x00},
    {123,0x00},
    {124,0x5C},
    {125,0x90},
    {126,0x40},
    {127,0x01},
    {0,0x06},
    { 8,0x18},
    {9,0x06},
    {10,0x00},
    { 11,0x4E},
    { 12,0x1C},
    {13,0x06},
    {14,0x00},
    {15,0x41},
    {16,0x1C},
    {17,0x06},
    {18,0x20},
    { 19,0x4C},
    {20,0x10},
    {21,0x00},
    { 22,0x40},
    { 23,0x3A},
    { 24,0x1C},
    {25,0x06},
    { 26,0x20},
    {27,0x43},
    {28,0x1C},
    { 290x06},
    { 30,0x40},
    { 31,0x48},
    { 32,0x1C },
    {33,0x06},
    {34,0x40},
    {35,0x47},
    { 36,0x1C},
    {37,0x06},
    { 380x60},
    {39,0x44},
    {40,0x1C},
    {41,0x06},
    { 42,0x60},
    { 43,0x4B},
    { 44,0x1C},
    {45,0x06},
    {46,0x80},
    {47,0x4D},
    { 48,0x1C},
    {49,0x06},
    { 50,0x80},
    {51,0x42},
    { 52,0x1C},
    {53,0x06},
    { 54,0xA0},
    {55,0x49},
    { 56,0x1C},
    {57,0x06},
    {58,0xA0},
    {59,0x46},
    { 60,0x1C},
    { 61,0x06},
    { 62,0xC0},
    { 63,0x4A},
    { 64,0x1C},
    {650x06},
    {66,0xC0},
    {67,0x45},
    {680x00},
    {69,0x00},
    {70,0x00},
    {71,0x00},
    { 72,0x5C},
    { 73,0x90},
    {74,0x60},
    {75,0x01},
    {76,0x00},
    { 77,0x00},
    {78,0x00},
    {79,0x00},
    { 800x00},
    {81,0x00},
    {82,0x00},
    {83,0x00},
    {84,0x00},
    {85,0x00},
    {86,0x00},
    {87,0x00},
    {88,0x10},
    {89,0x00},
    {90,0x40},
    {91,0x4F},
    {92,0x00},
    {93,0x00},
    {94,0x00},
    {95,0x00},
    {96,0x00},
    {97,0x00},
    {98,0x00},
    {99,0x00},
    {100,0x00},
    {101,0x00},
    {102,0x00},
    {103,0x00},
    {104,0x02},
    {105,0x00},
    {106,0x00},
    {107,0x00},
    {108,0x00},
    {109,0x00},
    {110,0x00},
    {111,0x00},
    };
    #define miniDSP_D_REG_Values_Coeff_start 0#define
    miniDSP_D_REG_Values_Coeff_Size 458
    #define miniDSP_D_REG_Values_INST_start 458
    #define miniDSP_D_REG_Values_INST_Size 712
    

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    您好,  

    感谢您提供更多信息。 从您分享的PurePath Studio (PPS)的流程流捕获中,我注意到您正在使用Dec2xIn和Int2xOut滤波块,而相同的采样率为44.1kHz,这是不正确的,因此问题可能与滤波器选择有关。

    PPS应用程序中的滤波块对应于小数(ADC)和内插(DAC)滤波器,应根据所用的采样率进行选择。 在当前应用程序中 ,配置编解码器时假定使用的采样率为44.1kHz (请参阅属性窗口),对于此应用程序,小数筛选器应为 Dec4xIn,插值筛选器应为 Int8xOut。 请更新您的流程流中的这些组件,并查看是否有改进。 您可以参阅过滤器的帮助文件,了解有关根据 所用采样率选择正确过滤器的更多信息。  

    此致,

     -Diego Mel é ndez López ñ a
     音频应用工程师

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    感谢您的回复。 我已经按照您的建议进行了测试。 但我发现当我使用AIC3268 8x4x,Dec4xIn和Int8xOut作为heip文件显示时,它使声音太低,听不到声音。  我必须增加ADC和DAC的增益。 音频文件中也可以听到白噪声。