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Public Attributes |
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int | tone_freq [2] |
| | The tones used.
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int | tone_amp [2] |
| | The high and low tone amplitudes.
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int | high_low_timeout |
| | The delay, in audio samples, before the high level tone drops to a low level tone.
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int | sharp_flat_timeout |
| | Some signaling tone detectors use a sharp initial filter, changing to a broader band filter after some delay. This parameter defines the delay. 0 means it never changes.
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int | notch_lag_time |
| | Parameters to control the behaviour of the notch filter, used to remove the tone from the voice path in some protocols.
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int | notch_allowed |
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int | tone_on_check_time |
| | The tone on persistence check, in audio samples.
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int | tone_off_check_time |
| | The tone off persistence check, in audio samples.
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int32_t | notch_a1 [3] |
| | The coefficients for the cascaded bi-quads notch filter.
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int32_t | notch_b1 [3] |
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int32_t | notch_a2 [3] |
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int32_t | notch_b2 [3] |
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int | notch_postscale |
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int32_t | broad_a [3] |
| | Flat mode bandpass bi-quad parameters.
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int32_t | broad_b [3] |
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int | broad_postscale |
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int32_t | notch_slugi |
| | The coefficients for the post notch leaky integrator.
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int32_t | notch_slugp |
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int32_t | unfiltered_slugi |
| | The coefficients for the post modulus leaky integrator in the unfiltered data path. The prescale value incorporates the detection ratio. This is called the guard ratio in some protocols.
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int32_t | unfiltered_slugp |
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int32_t | broad_slugi |
| | The coefficients for the post modulus leaky integrator in the bandpass filter data path.
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int32_t | broad_slugp |
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int32_t | notch_threshold |
| | Masks which effectively threshold the notched, weighted and bandpassed data.
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int32_t | unfiltered_threshold |
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int32_t | broad_threshold |
