The Adaptive Digital Technologies GSM FR vocoder .pdf
is
a real-time implementation of GSM 06.10 RPELTP (Regular Pulse Excitation-Long
Term-Prediction-Linear Predictive Coder) vocoder. GSM FR was the first digital speech-coding standard
used in GSM digital mobile
phone system.
Coding Rate: 13.2 kbps
Sampling Rate: 8 kHz
Functions are C-callable.
Multi -Channel Implementation.
Completely re-entrant (Channel can interrupt any Channel, any time)
Can be integrated with echo cancellers, VOX and tone detection/regeneration.
ADT GSM FR is available on the TMS320C64X™ DSP
Family .pdf
‘C55x and ‘C54x are preliminary
All Memory usage is given in units of byte.
Function |
MIPS |
Program Memory |
Data Memory |
Per-Channel Data Memory |
Scratch |
Encode |
2.9 |
30880 |
408 |
740 |
688 |
Decode |
2.9 |
640 |
560 | ||
Encode / Decode |
5.9 |
-- |
-- |
-- |
-- |
Last update: 11/14/2006
Preliminary - All Memory usage is given in units of byte.
Function |
MIPS |
Program Memory |
Data Memory |
Per-Channel
Data Memory |
Scratch |
Encode |
8.7 |
10293 |
408 |
677 |
740 |
Decode |
8.7 |
560 |
640 | ||
Encode / Decode |
17.4 |
-- |
-- |
-- |
-- |
Last update: 11/14/2006
Preliminary - All Memory usage is given in units of 16-bit word.
Function |
MIPS |
Program Memory |
Data Memory |
Per-Channel
Data Memory |
Scratch |
Encode |
17.4 |
5147 |
204 |
344 |
370 |
Decode |
17.4 |
280 |
320 | ||
Encode / Decode |
35 |
-- |
-- |
-- |
-- |
Last update: 11/14/2006
FR_ADT_encInit (…) Initializes the GSM FR Encode Channel Structure
FR_ADT_decInit (…) Initializes the GSM FR Decode Channel Structure
FR_ADT_encode (…) Executes the GSM FR encoder
FR_ADT_decode (…) Executes the GSM FR decoder
digital mobile phone system
SITE LINKS
HOMEVOCODERS
ADT 4800 ADT 9600 G.711 G.722 G.722.1 G.722.2 AMR-WB G.723.1 G.726 G.728 G.729, G.729 AB GSM AMR GSM FR LPC EVRC EVRC-B MELP MELPe SMV iLBCRELATED LINKS
G.168 NEC & LEC G.168 Lite G.168 EC CHIP 'C6424 G.168 EC CHIP 'C641x ACOUSTIC EC ACOUSTIC EC G2 LC IPP REFERENCE DESIGN DSP RESOURCE WIZARD