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Speech and Audio DSP Software

These functions are principally speech and audio coders. Click on "asm code"# or "C code" of the desired function to view a data sheet (# shorthand for TMS320C5000 DSP assembler code).

Function Code type Processor MIPS1 Processor Data Mem (kwords)2 Processor Prog Mem1 Features Sample rate (kHz)
G.711 Speech Coder asm code 0.37 none 0.07kwords 64kb/s, narrowband (<=3.4kHz) 8.0
C code 0.8 none 0.27kbytes
G.722 Audio Coder asm code 6.8 12 + 120xN 0.8kwords 64, 56, 48kb/s,
wideband (<=7.0kHz)
16.0
C code 20.8 120xN 2.6kbytes
G.726 Speech Coder asm code 10.0 12 + 50xN 0.8kwords 40, 32, 24, 16kb/s, narrowband (<=3.4kHz)
8.0
C code 30.8 50xN 2.6kbytes
G.728 Speech Coder asm code 29.0 115 + 1.6kxN 3.6kwords 16kb/s, narrowband (<=3.4kHz) 8.0
G.729A(B) Speech Coder asm code 14.2 7k + 1558xN 17kwords 8kb/s, narrowband (<=3.4kHz) 8.0
Hi-Fi Band Audio Coder asm code 17.4 14 + 288xN 0.9kwords 128, 112, 96kb/s, super-wideband (<=15.0kHz)
32.0
C code 47.4 288xN 3.4kbytes
P.56 Speech Level Meter asm code 0.633 58xN 0.35kwords Levels / Activity measured 8.0, 9.6, 16.0
C code 1.13 58xN 1.1kbytes
Function Code type Processor MIPS1 Processor Data Mem (kwords)2 Processor Prog Mem1 Features Sample rate (kHz)

1 with asm code, MIPS and ProgMem (in 16-bit words) values are from TMS320C54x DSP assembling
1 with C code, MIPS and ProgMem (in 8-bit bytes) values are from TMS320C55x DSP compiling

2
X + YxN means X words plus Y words for each of N channels
3 at 8.0kHz sample rate

 
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