SampleFrequency

The SampleFrequency parameter specifies the sampling frequency of the audio (the frames produced by the module).

If you specify this parameter for the langid and lidoptimizer modules, HPE IDOL Speech Server checks the classifier set sample frequency against the module sample frequency to look for mismatches. Setting SampleFrequency to 0 (the default) disables this check.

NOTE:

If the FFmpeg library is enabled, the wav module can accept a variety of audio formats with different sampling frequencies. In such cases, the wav module converts the audio to the specified sampling frequency.

NOTE:

To detect breaking glass using the audiosec module, HPE strongly recommends that the audio sampling rate is 16000 Hz.

Type: Integer
Default: 16000 (afp, afpfeature, audiopreproc, audiosec, audiotemplatedevel, audiotemplatescore, audiotemplatetrain, frontend, ivfile, ivscore, normalizer, splitspeech, stream, and wav modules)
0 (langid and lidoptimizer modules)
(No default value for the speakerid module)
Range: 8000 or 16000
Required: Only for the speakerid module
Configuration Section: afp, afpfeature, audiopreproc, audiosec, audiotemplatedevel, audiotemplatescore, audiotemplatetrain, frontend, ivfile, ivscore, langid, lidoptimizer, normalizer, speakerid, splitspeech, stream, and wav modules
Example: SampleFrequency=16000
See Also: Sfreq (action parameter)

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