Addition of detectors which skip first few frames
of audio before they start to process it helps
to properly handle some Verizon voicemails.
The result of avmd test using this commit is
OK. All PASS [100]
Thi scommit also resolves:
FS-9588 Add script for outbound avmdy
FS-9589 Add resolution info to events
Now avmd detection is done in detector threads
processing audio frames with different resolution
and/or offsets. Detection decision is based on relative
standard deviation which dynamically adjusts to the signal.
Detection of amplitude, frequency and both simultaneously
is enabled and corresponding setting added to the configuration.
Frequency estimates are filtered with median filter.
This commit also resolves:
FS-9539 - Get estimates with different resolution
FS-9513 - Use adjustable thresholds
FS-9502 - Add detection mode setting
FS-9501 - Enable three modes of detection
FS-9407 - Add check of amplitude for NaN before appending to SMA buffer
FS-9139 - Unit test framework
Increase value of samples to skip at the beginning of new frame.
This increases the robustness against false detections observed
on German voicemail from Switzerland (see wav audio attached
to case FS-9447).
Piotr Gregor