Silence Detector Controls
[Mixer and Controls]

The silence detector control monitors its input for silence exceeding a set duration. More...

Functions
HPI_ERR	HPI_SilenceDetector_GetState (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, HW32 *State)
	Get the State of a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_SetEnable (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, HW32 Enable)
	Enable a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_GetEnable (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, HW32 *Enable)
	Get the Enable setting of a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_SetEventEnable (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, HW32 EventEnable)
	Set the event generation by a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_GetEventEnable (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, HW32 *EventEnable)
	Get the event generation enable setting of a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_SetDelay (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, HW32 Delay)
	Set the Delay of a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_GetDelay (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, HW32 *Delay)
	Get the trigger delay of a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_SetThreshold (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, int Threshold)
	Set the Threshold of a SilenceDetector control.
HPI_ERR	HPI_SilenceDetector_GetThreshold (const HPI_HSUBSYS *phSubSys, HPI_HCONTROL hControl, int *Threshold)
	Get the Threshold of a SilenceDetector control.

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Detailed Description

The silence detector control monitors its input for silence exceeding a set duration.

Silence is defined as signal below a specified threshold set by HPI_SilenceDetector_SetThreshold() The duration is specified by HPI_SilenceDetector_SetDelay() silence-detected state is reset immediately the signal exceeds the threshold (no delay)

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Function Documentation

HPI_ERR HPI_SilenceDetector_GetState (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, HW32 *  State )

Get the State of a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle *State  The state is a bitmap corresponding to the channels being monitored (LSB=left channel, LSB+1=right channel) Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_SetEnable (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, HW32  Enable )

Enable a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle *Enable  1=enable, 0=disable Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_GetEnable (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, HW32 *  Enable )

Get the Enable setting of a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle Enable  1=enable, 0=disable Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_SetEventEnable (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, HW32  EventEnable )

Set the event generation by a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle EventEnable  1=enable, 0=disable Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_GetEventEnable (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, HW32 *  EventEnable )

Get the event generation enable setting of a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle *EventEnable  1=enable, 0=disable Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_SetDelay (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, HW32  Delay )

Set the Delay of a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle Delay  Trigger delay in milliseconds, max 60000 (60 seconds) Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_GetDelay (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, HW32 *  Delay )

Get the trigger delay of a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle *Delay  see HPI_SilenceDetector_SetDelay() Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_SetThreshold (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, int  Threshold )

Set the Threshold of a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle Threshold  in millibels wrt full scale. E.g. -4000 -> -40dBFS threshold. Returns: 0 on success, or one of the HPI_ERROR_CODES.

HPI_ERR HPI_SilenceDetector_GetThreshold (  const HPI_HSUBSYS *  phSubSys, HPI_HCONTROL  hControl, int *  Threshold )

Get the Threshold of a SilenceDetector control. Parameters: phSubSys  subsystem handle hControl  silence detector handle Threshold  see HPI_SilenceDetector_SetThreshold() Returns: 0 on success, or one of the HPI_ERROR_CODES.

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