g723tab.asm

利用G.723协议在DSP实现音频信号的压缩与解压缩实验

          .title "g723tab.asm"  
          
          .sect  "g723_tab"

dqlntab     .word       -2048, -66, 28, 104, 169, 224, 274, 318
			.word	    358, 395, 429, 459, 488, 514, 539, 566
			.word	    566, 539, 514, 488, 459, 429, 395, 358
			.word	    318, 274, 224, 169, 104, 28, -66, -2048
				          

witab       .word       448, 448, 768, 1248, 1280, 1312, 1856, 3200
		    .word    	4512, 5728, 7008, 8960, 11456, 14080, 16928, 22272
		    .word    	22272, 16928, 14080, 11456, 8960, 7008, 5728, 4512
		    .word    	3200, 1856, 1312, 1280, 1248, 768, 448, 448


fitab       .word        0, 0, 0, 0, 0, 0x200, 0x200, 0x200
			.word        0x200, 0x200, 0x400, 0x600, 0x800, 0xA00, 0xC00, 0xC00
			.word        0xC00, 0xC00, 0xA00, 0x800, 0x600, 0x400, 0x200, 0x200
			.word        0x200, 0x200, 0x200, 0, 0, 0, 0, 0


qtab_723_40  .word       -122, -16, 68, 139, 198, 250, 298, 339
			 .word	    378, 413, 445, 475, 502, 528, 553

power2       .word      1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80
		     .word    	0x100, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000