Acoustic Echo Cancellation (AEC) G.167 Software
GAO’s G.167 Acoustic Echo Cancellation Software (AEC software) is an acoustic echo canceller that eliminates one of the biggest problems with hands-free speaker phones: acoustical echoes.
The memory and MIPS requirements of an acoustical echo canceller depend on the maximum duration of all possible echoes. The longer the duration of an echo the more MIPS and memory required to resolve the problem. Echo with a duration of 80 ms may be generated by a room with 4 meters by 4 meters of hard wall.
Features of G.167 Acoustic Echo Cancellation Software (AEC)
- Fully complies with ITU-T G.167 standard
- Implemented in assembly or C
- User-callable functions
- Low data memory, program memory, and computational requirements
- Robust double-talk detection
- High-performance full duplex operation
- High signal to noise ratio
- Robust design delivers consistent results
- Automatic Gain Control
- Cancels echo tail length of 16, 32, 64, 128 and 256 ms
For a complete list of GAO’s Telephony Software products, please see GAO’s Telephony Software.