get_reference_curve

ToneToNoiseRatio.get_reference_curve()

Get a reference curve to compare the TNR with.

Returns:

:

numpy.ndarray

Reference curve to compare the TNR with as defined in the ECMA 418-1 and ISO 7779 standards. If TNR is higher, then the tone is prominent.

Return type:

Union[Buffer, _SupportsArray[dtype[Any]], _NestedSequence[_SupportsArray[dtype[Any]]], bool, int, float, complex, str, bytes, _NestedSequence[Union[bool, int, float, complex, str, bytes]]]