Docs
Documentation
Quick reference for Sympariyac (SYMP) DTMF Decoder. For full documentation, request access through licensing.
Quick specs
- Input format: 16-bit PCM, 8 kHz sample rate.
- Configurable: power level, frequency deviation, signal duration, pause duration.
- Error reporting: up to 22 high-level error codes.
- Multi-threading: fully re-entrant and multi-instancing capable.
Performance metrics
MIPS measured for 50 ms digit duration and 50 ms pause duration at Fs=8 kHz on ADSP-BF518, ADSP-BF527, ADSP-BF533, and ADSP-BF561. Code and data optimized for L1/L3 layouts.
Compliance testing
- Bellcore GR-506-CORE and TR-TSY-000181
- ETSI 300-001 and ETSI 201-235
- ITU Q.24, Table A-1
- AT&T and NTT specifications
Request full documentation
Access to full documentation is provided with an active license agreement.