ld-celp.zip_G.728_celp_celp speech codec_ld-celp

/*************************************************************************/ /* */ /* LD-CELP G.728 */ /* */ /* Low-Delay Code Excitation Linear Prediction speech compression. */ /* */ /* Code edited by Michael Concannon. */ /* Based on code written by Alex Zatsman, Analog Devices 1993 */ /* */ /*************************************************************************/ #include "common.h" #include "data.h" real CBMEM cb_shape[128][5] = { { 0.326171875, -1.440429688, -0.612304688, -0.874023438, -1.246582031}, { -2.457031250, -2.234863281, -0.510253906, 1.419921875, 1.620117188}, { -1.376464844, -1.307128906, -0.462890625, -1.379394531, -2.172851563}, { -3.261230469, -0.166015625, 0.723632813, -0.623046875, 0.616210938}, { -0.274414063, -3.299316406, 0.625488281, 0.087402344, -0.622070313}, { -1.226562500, -3.481445313, -2.404785156, 3.375488281, 1.177246094}, { -1.209960938, -0.076171875, 2.286621094, -1.891113281, 0.000000000}, { -4.007812500, 1.044921875, -0.233398438, -1.359863281, 0.260253906}, { 0.922363281, 1.347167969, 0.674316406, -3.395996094, -2.887207031}, { 2.481445313, -1.201171875, -2.821289063, 0.877441406, 0.277343750}, { -1.078125000, -1.615722656, -2.208496094, -3.044921875, -3.664550781}, { -1.327636719, 2.127929688, -1.458984375, -0.561035156, 1.300781250}, { 0.614746094, 0.485839844, 1.323730469, -1.203125000, -5.073242188}, { 0.840820313, -3.695800781, -1.338867188, 1.060058594, -1.137207031}, { 0.503906250, 0.364746094, -0.418945313, -3.879882813, -6.270996094}, { 1.516601563, 2.371093750, -2.047363281, -1.240722656, 0.505371094}, { 0.909179688, -0.468750000, -3.236328125, 0.200195313, 2.872070313}, { -1.217285156, -1.283203125, -1.953125000, -0.029296875, 3.516601563}, { -1.304687500, 0.706054688, 0.750000000, -1.870605469, 0.602050781}, { -2.588867188, 3.375000000, 0.775878906, -2.044433594, 1.789550781}, { -1.687500000, -3.989257813, -3.764160156, 0.675781250, 2.293945313}, { -2.294433594, -3.031738281, -5.457031250, 3.957031250, 8.217773438}, { 0.454101563, 3.419921875, 0.619628906, -4.383300781, 1.253417969}, { 2.270019531, 5.763671875, 1.680175781, -2.762207031, 0.585449219}, { 1.241210938, -0.089355469, -4.325683594, -3.894531250, 1.577148438}, { -1.402343750, -0.981933594, -4.742675781, -4.094238281, 6.339355469}, { 1.506835938, 1.044921875, -1.796875000, -4.708496094, -1.414062500}, { -3.715332031, 3.181152344, -1.114746094, -1.231445313, 3.091796875}, { -1.627441406, -2.744140625, -4.458007813, -5.435058594, 2.706542969}, { -0.198730469, -3.281738281, -8.528320313, -1.410644531, 5.648437500}, { 1.802734375, 3.318359375, -0.127929688, -5.295898438, -0.906250000}, { 3.552246094, 6.544921875, -1.459472656, -5.173339844, 2.410156250}, { 0.119140625, -1.083496094, 1.296875000, 1.843750000, -2.642578125}, { -1.974121094, -2.897460938, 1.040527344, 0.421386719, -1.399414063}, { -1.612304688, 0.851074219, -0.979492188, -0.062500000, -1.001953125}, { -3.105957031, 1.631835938, -0.772949219, -0.010253906, 0.557617188}, { -1.873535156, -0.894042969, 3.123535156, 1.242675781, -1.390625000}, { -4.556640625, -3.187500000, 2.592285156, 0.969726563, -1.096191406}, { -2.192382813, 0.365234375, 0.944824219, -1.478027344, -0.240722656}, { -4.519042969, 2.620117188, 1.559082031, -2.193847656, 0.871093750}, { 2.335937500, -0.180664063, 0.911132813, 0.516113281, -0.922363281}, { 3.584960938, -1.313476563, -1.258300781, 0.330078125, -0.298339844}, { -0.245117188, 1.091308594, -0.903320313, -0.867675781, -1.000488281}, { 0.493652344, 1.894531250, -1.203613281, 1.078613281, -0.074218750}, { 1.265625000, 1.381347656, 2.728515625, 1.386230469, -3.567382813}, { -1.488769531, -2.401367188, 2.907714844, 4.492675781, -2.171386719}, { 0.340332031, 1.908203125, 2.831054688, -2.173339844, -2.267578125}, { -1.035644531, 2.658203125, -1.254882813, 0.156738281, -0.586914063}, { 1.389648438, -1.018554688, 1.724609375, 0.276367188, -0.345703125}, { -2.089355469, 0.463867188, 2.431640625, 1.830566406, 0.220703125}, { -1.212890625, 1.709960938, 0.839355469, -0.083007813, 0.116210938}, { -1.677246094, 0.128417969, 1.032226563, -0.979003906, 1.152832031}, { -3.583007813, -0.589843750, 4.563964844, -0.593750000, -1.959472656}, { -6.590820313, -0.214355469, 3.919921875, -2.066406250, 0.176269531}, { -1.820800781, 2.652832031, 0.978515625, -2.308105469, -0.614746094}, { -1.946289063, 3.780761719, 4.115722656, -1.802246094, -0.481933594}, { 2.538085938, -0.206542969, 0.561523438, -0.625488281, 0.398437500}, { 3.617675781, 2.006347656, -1.928222656, 1.313476563, 0.014648438}, { 0.608398438, 1.491699219, -0.017089844, -0.668945313, -0.120117188}, { -0.727050781, 2.751464844, -0.331054688, -1.282714844, 1.547851563}, { 2.358398438, -2.238769531, 0.980468750, -0.518554688, 0.390136719}, { -0.062988281, 0.350097656, 2.243164063, 7.293457031, 5.227539063}, { 0.203613281, 1.347167969, 0.903320313, -2.469238281, -0.562988281}, { -1.897949219, 3.594238281, -2.816406250, 2.092285156, 0.325195313}, { 0.704589844, -0.458007813, 0.009765625, -1.034667969, -0.828613281}, { -1.812500000, -1.661132813, -1.080078125, 0.053710938, 1.042968750}, { -1.441406250, 0.005859375, -0.765625000, -1.708984375, -0.905761719}, { -0.642089844, -0.845214844, 0.566406250, -0.272460938, 0.834472656}, { 0.042968750, -2.230957031, 0.094726563, -0.221679688, -1.443847656}, { -1.386230469, -0.813476563, -0.133300781, 1.017578125, -0.075683594}, { -0.092285156, -1.160156250, 0.812011719, -0.507812500, -1.195800781}, { -1.387695313, -0.668457031, 0.310546875, -0.121093750, -1.307128906}, { 0.740722656, 0.038574219, -1.471191406, -1.791503906, -0.475097656}, { 0.934082031, -1.217285156, -2.593750000, -0.365722656, 0.620605469}, { -1.417480469, -1.623046875, -1.833984375, -1.801757813, -0.893066406}, { -1.422363281, -0.755371094, -1.347656250, -0.686523438, 0.548828125}, { 0.900390625, -0.895507813, 0.222656250, 0.344726563, -2.085937500}, { 0.228027344, -2.078125000, -0.932128906, 0.742675781, 0.553710938}, { -0.062011719, -0.485351563, -0.311035156, -0.728027344, -3.170898438}, { 0.426269531, -0.998535156, -1.869140625, -1.363281250, -0.282226563}, { 1.128417969, -0.887207031, 1.285156250, -1.490234375, 0.960937500}, { 0.312988281, 0.583007813, 0.924316406, 2.005371094, 3.096679688}, { -0.021972656, 0.584960938, 1.054687500, -0.707519531, 1.075683594}, { -0.978515625, 0.836425781, 1.717773438, 1.294921875, 2.075683594}, { 1.433593750, -1.937500000, 0.625000000, 0.063964844, -0.720703125}, { 1.380371094, 0.003906250, -0.941406250, 1.297851563, 1.715332031}, { 1.562011719, -0.398437500, 1.312011719, -0.850097656, -0.687011719}, { 1.439453125, 1.967285156, 0.192382813, -0.123535156, 0.633789063}, { 2.092773438, 0.024902344, -2.200683594, -0.015625000, -0.321777344}, { 1.905761719, 2.756835938, -2.728515625, -1.265625000, 2.786621094}, { -0.295898438, 0.602539063, -0.784667969, -2.532714844, 0.324218750}, { -0.256347656, 1.767578125, -1.070312500, -1.233886719, 0.833496094}, { 2.098144531, -1.587402344, -1.114746094, 0.396484375, -1.105468750}, { 2.814941406, 0.257812500, -1.604980469, 0.660156250, 0.816406250}, { 1.335449219, 0.605957031, -0.538574219, -1.598144531, -1.663574219}, { 1.969238281, 0.804687500, -1.447753906, -0.573242188, 0.705078125}, { 0.036132813, 0.448242188, 0.976074219, 0.44