MF R1 & R2

ADT MF R1 R2 Multi- Frequency SIGNALING TONE C54x , C55x , C64x

DESCRIPTION

The Adaptive Digital Technologies Signaling Tone detectoris a carrier class Signaling Tone detector that provides exceptional channel densities. The ADT Signaling Tone Detector detects Signaling tones such as DTMF, MF R1, R2 Forward, R2 Reverse, Call Progress signals. Adaptive Digital’s proprietary algorithm is robust enough to meet Bellcore GR-506, and ITU Q455 recommendations while using few CPU cycles.

Adaptive Digital's proprietary DTMF algorithm at less than one half the CPU utilization measured in MIPS (Millions of Instructions Per Second) offers more than twice the channel density compared with the nearest competitor while maintaining strict compliance with industry specifications Bellcore/Telcordia GR506 and ITU Q455.

An optional DTMF suppressor is available to suppress DTMF tones in Voice-Over-Packet systems that employ tone passing via out-of-band signaling. This is useful when a low rate speech compression algorithm is unable to pass the DTMF tones without significant distortion.

Data sheet - .pdf

FEATURES

Detector

eXpress DSP compliant
ITU Q.24 compliant
Meets Bellcore GR506, ITU Q455 specifications
Robust detection
Low per-channel memory requirements
Low false alarm rate
C-callable
Designed for multi-channel operation
Programmable Frame Size

Suppressor

Rapid tone suppression
Minimal distortion to speech during false early detection
C-Callable
Designed for multi-channel operation

AVAILABILITY

ADT Tone Detect/Suppress is available on the TMS320™ DSP Family

C54x™DSP, C55x™DSP, & C64x™DSP Generations

SPECIFICATIONS

MF R1 R2 C54x

All Memory usage is given in units of 16-bit word.

LOW MIPS					LOW Memory
Function	MIPs Per-Channel	Program Memory	Data Memory	Per-Channel Data Memory	MIPs Per-Channel	Program Memory	Data Memory	Per-Channel Data Memory
DTMF Detect	0.83	607	40	55	0.36	571	1704	68
MFR1 Detect	0.69	587	66	55	0.31	568	1626	68
MFR2 FDetect	0.92	551	60	55	0.58	537	780	68
MFR2 RDetect	0.92	551	60	55	0.58	537	780	68
CprgDetect	0.55	610	32	55	0.25	595	1540	68
Common	---	686	16	0	---	684	0	0
Suppress	0.22	398	1680	0	0.38	398	0	0

Last update: 07/25/2002

MF R1 R2 C55x

All Memory usage is given in units of byte.

LOW MIPS
Function	MIPs Per-Channel	Program Memory	Data Memory	Per-Channel Data Memory
DTMF Detect	0.27	1243	3412	148
MFR1 Detect	0.22	1228	3256	148
MFR2 FDetect	0.46	1133	1660	148
MFR2 RDetect	0.46	1133	1660	148
CprgDetect	0.20	1133	2996	148
Common	---	1369	32	0
Suppress	0.17	598	0	0

Last update: 10/21/2002

MF R1 R2 C64x

All Memory usage is given in units of byte.

LOW MIPS					LOW Memory
Function	MIPs Per-Channel	Program Memory	Data Memory	Per-Channel Data Memory	MIPs Per-Channel	Program Memory	Data Memory	Per-Channel Data Memory
DTMF Detect	0.42	3642	80	110	0.30	1876	3710	164
MFR1 Detect	0.35	3522	132	110	0.22	1440	3272	164
MFR2 FDetect	0.46	3306	132	110	0.33	1248	1736	164
MFR2 RDetect	0.46	3306	132	110	0.33	1248	1736	164
CprgDetect	0.28	3306	64	110	0.18	1408	2992	164
Common	---	4134	32	0	---	2592	0	0
Suppress	0.38	1056	3360	0	0.38	1056	0	0

Last update: 04/11/2004

MF R1 R2 C64x+ Memory Utilization

	Program Memory	Data Memory	Per-Channel Data Memory	Scratch Memory
DTMF (only)	2944	3710	152	384NOTE2
MFR1 (only)	1632	3272	152
MFR2F(only)	1408	1736	152
MFR2R(only)	1408	1736	152
CPRG (only)	1440	2992	152
Common	2784	0	N/A

FUNCTION

DTMF_ADT_Init(. . .)

MFR1_ADT_Init(. . .) MFR1_ADT_toneDetect(. . .)

MFR2_F _ADT_Init(. . .) MFR2_F_ADT_toneDetect(. . .)

MFR2_R _ADT_Init(. . .) MFR2_R_ADT_toneDetect(. . .)

CPRG _ADT_Init(. . .) CPRG_ADT_toneDetect(. . .)

DTMF_ADT_toneDetect(. . .) DTMF_ADT_toneSuppress(. . .)