
In telecommunications systems, it is often necessary to detect the presence of a voice-band modem signal. In particular, when using a line echo canceller, it is desirable to disable certain aspects of echo cancellers or echo suppressors. Modems therefore precede their transmissions with a disable tone. These tones are described in ITU recommendations G.164 and G.165. The ADT G.165 Tone Detector .pdf
detects both of the aforementioned disable tones.
ADT G.165 Detect is available on the TMS320C5000™ DSP Platform C54x and C55x™DSP Generations
All Memory usage is given in units of bytes.
MIPS (Peak loading) |
Program Mem |
Data Mem |
Per Channel Data Mem |
|
Tone Disabler |
0.08 |
1618 |
352 |
88 |
Last update: 07/12/2005
G165DET_ADT_initG165Detect(…) Initializes G165 Detector channel
G165DET_ADT_g165Detect (…) ExecutesG165 detector function
G165DET_ADT_g165ReleaseCheck(…) Executes G165 Release Check
SITE LINKS
HOME MODEM ALGORITHMS ![]()
RELATED LINKS
PRODUCT INDEX .pdf INDEX DSP RESOURCE WIZARD