ATIS T1.TR.03
Test Vectors for the 24-, 32-, and 40-kbit/s Adaptive differential Pulse-Code Modulation (ADPCM) Algorithms Specified in ANSI T1.303-1989
| Organization: | ATIS |
| Publication Date: | 1 August 1989 |
| Status: | active |
| Page Count: | 10 |
scope:
The scope of this document is the test vectors for ANSI T1.303-1989 24-, 32- and 40- kbit/s ADPCM algorithms.
Purpose
Previously available test vectors covered the three fixed bit rates (24 kbit/s, 32 kbit/s, 40 kbit/s) for both the A-law and the μ-law operations. Both reset and homing vectors were available for 32 kbit/s ADPCM, but only reset vectors were available for 24- and 40- kbit/s ADPCM. Cross-vectors (A → μ, μ → A) were not provided and the PCM inputs for the A-law did not have their even bits inverted.
Document History