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Topic: LAME ABR Settings (Read 1745 times) previous topic - next topic
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LAME ABR Settings

In another Thread (ABR and lowpass) john33 postet this list:

Code: [Select]
        // kbps Z  X  lowpass safejoint nsmsfix ns-bass scale
        {   8,  1, 6,  2000,  0,        0   ,   -3,      0.85 }, //   8 //impossible to use in stereo
        {  16,  1, 6,  3700,  0,        0   ,   -3,      0.85 }, //  16
        {  24,  1, 1,  3900,  0,        0   ,   -3,      0.85 }, //  24
        {  32,  1, 1,  5500,  0,        0   ,   -3,      0.85 }, //  32
        {  40,  1, 1,  7000,  0,        0   ,   -3,      0.85 }, //  40
        {  48,  1, 1,  7500,  0,        0   ,   -3,      0.85 }, //  48
        {  56,  1, 1, 10000,  0,        0   ,   -3,      0.85 }, //  56
        {  64,  1, 1, 11000,  0,        0   ,   -3,      0.85 }, //  64
        {  80,  1, 1, 13500,  0,        0   ,   -3,      0.85 }, //  80
        {  96,  1, 1, 15300,  0,        0   ,   -4,      0.85 }, //  96
        { 112,  1, 1, 16000,  0,        0   ,   -5,      0.87 }, // 112
        { 128,  1, 1, 17500,  0,        0   ,   -6,      0.93 }, // 128
        { 160,  1, 1, 18000,  0,        0   ,   -4,      0.95 }, // 160
        { 192,  1, 1, 19500,  1,        1.7 ,   -2,      0.97 }, // 192
        { 224,  1, 1, 20000,  1,        1.25,    0,      0.98 }, // 224
        { 256,  0, 3, 20500,  1,        0   ,    0,      1.00 }, // 256
        { 320,  0, 3, 21000,  1,        0   ,    0,      1.00 }  // 320
                                       };


LOWPASS is pretty much self-explanatory and Z indicates, I guess, the noise-shaping mode, but can anybody explain to me, what X, SAFEJOINT, NSMSFIX, NS-BASS and SCALE stands for?
Why is the NSMS-FIX-Value always zero except for 192 and 224 kbps?




Greetz, Frankie