0x0609 Noise Gate Parameters

Use this TLV in the Resource Create (0x0124) and Generic Card Configure (0x0122) messages to set parameters for gating noise, including:

• the time constant over which the noise level is checked

• the allowable noise level

• noise gating sensitivity

If noise gating sensitivity is set too low for a conference, there is a risk of clipped speech; if it is set too high, there is a risk of noise bleeding through.

Byte | Description
0, 1 | Tag: 0x0609 - Noise Gate Parameters
2, 3 | Length: 0x0006
4, 5 | Value[0, 1]: Time Constant (5 ms steps) Min: 10 (0x000A) Max: 100 (0x0064) Default: 35 (0x0023)
6, 7 | Value[2, 3]: Maximum Noise Level (1 dBm steps) Min: -54 (0xFFCA) Max: -10 (0xFFF6) Default: -20 (0xFFEC)
8, 9 | Value[4, 5]: Noise Gating Sensitivity 0x0001 - Low 0x0002 0x0003- Default 0x0004 0x0005 - High

Tag-Length-Value block. A standardized block that allows data to inserted in a standard way into API messages.