# audioDelayDetectorTestStateChanged
Description: Notification after the echo test state has changed.
Example:
{
"state" : 1,
"delay" : 10,
"event": "audioDelayDetectorTestStateChanged",
"method": "event"
}
Parameter description:
state— State0 — ready
1 — is now being executed
2 — failed to execute
3 — unavailable
delay— the delay value specified in milliseconds. The field is not included if the current value is set by default or if the echo test is not ready.
See also: