• IXJCTL_AEC_START

    ioctl(ixj1, IXJCTL_AEC_START, int iStrength)

    Return Value

    None.

    Parameters

    Integer allowing control of AEC strength in stages.

    Remarks

    Engages Acoustic Echo Cancellation mode when recording and playing audio. AEC will eliminate echoes generated by the acoustics at the microphone end. The canceller operates in the time frame of several milliseconds, suitable for a speakerphone conversation in a small office. This is called near-end acoustic cancellation.

    The strength parameter allows adjustment of the echo suppression for user comfort. The acceptable input values are: AEC_OFF, AEC_LOW, AEC_MED, AEC_HIGH, AEC_AUTO , and AEC_AGC.

    Issuing this call with the AEC_OFF parameter is the same as issuing the IXJCTL_AEC_STOP command.

    See Also:

    IXJCTL_AEC_STOP, IXJCTL_AEC_GET_LEVEL

    Example:

    ioctl(ixj1, IXJCTL_AEC_START, AEC_HIGH);
    


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