Spectralink 7502 Handset User Guide
Spectralink 7502 Handset User Guide.docx
April 2023 87
Handset A and B: AEC Disabled
The figure above shows a conversation between user A and user B. When the Acoustic
Echo Canceller (AEC) is disabled in handset B, user A will hear echoes of his own speech if
the delay is more than 25ms.
The following describes how this happens:
1. User A and B are in a telephone conversation. The AEC is disabled on handset B.
2. User A speaks, and user B says nothing.
3. Microphone A picks up the speech from A, and sends it to speaker B.
4. User B hears A’s speech in speaker B.
5. Speaker B also sends A’s speech out in the environment and inside the handset.
6. Microphone B picks up a part of speech A (undesired signal).
7. The undesired signal is sent to user A, who will hear it as an echo of A’s speech.
To Next Page
Loading...
