def stcqt(sig, fr, cqbank):
    """Implement Judith Brown's Constant Q transform.

    Parameters
    ----------
    sig: array_like
        Signal to be processed.
    fr: int
        Frame rate in Hz, or int(SR/hop_length).
    cqbank: ConstantQ Filterbank class
        A pre-defined constant Q filterbank class.

    See Also
    --------
    fbank.ConstantQ

    """
    return cqbank.cqt(sig, fr)