Signal synthesizing
AssigneeKoninklijke Philips N.V.
InventorDirk Jeroen Breebaart
Life of this patent
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Abstract
A method of synthesizing a first (L) and a second (R) output signal from an input signal (x). The method comprises: filtering (201) the input signal to generate a filtered signal (Hx); obtaining a correlation parameter (ρ) indicative of a desired correlation between the first and second output signals; obtaining a level parameter (c) indicative of a desired level difference between the first and second input signals; and transforming the input signal and the filtered signal by a matrixing operation (203) into the first and second output signals, where the matrixing operation depends on the correlation parameter and the level parameter.
Claims14
A method of synthesizing a first and a second output signal from an input signal, the method comprising:
- obtaining the input signal;
- using a filter for filtering the input signal to generate a filtered signal;
- obtaining a correlation parameter indicative of a desired correlation between the first and second output signals;
- and obtaining a level parameter indicative of a desired level difference between the first and second output signals;
- and
- using a matrixing transformer for transforming the input signal and the filtered signal by a matrixing operation into the first and second output signals, where the matrixing operation depends on the correlation parameter and the level parameter.
An arrangement for synthesizing a first and a second output signal from an input signal, the arrangement comprising:
- means for obtaining the input signal;
- a filter for filtering the input signal to generate a faltered signal;
- means for obtaining a correlation parameter indicative of a desired correlation between the first and second output signals;
- and for obtaining a level parameter indicative of a desired level difference between the first and second output signals;
- a matrixing transformer for transforming the input signal and the filtered signal by a matrixing operation into the first and second output signals, where the matrixing operation depends on the correlation parameter and the level parameter.
A non-transient storage medium comprising a decoded multi-channel signal having a first and a second signal component synthesized from an input signal by transforming the input signal and a filtered signal by a matrixing operation into the first and second signal components, where the filtered signal is generated by filtering the input signal, and where the matrixing operation depends on a correlation parameter indicative of a desired correlation between the first and second output signals and on a level parameter indicative of a desired level difference between the first and second output signals.
An arrangement for synthesizing a first and a second output signal from an input signal, the arrangement comprising:
- means for obtaining the input signal;
- filter means for filtering the input signal to generate a filtered signal;
- means for obtaining a correlation parameter indicative of a desired correlation between the first and second output signals;
- and for obtaining a level parameter indicative of a desired level difference between the first and second output signals;
- matrixing transformer means for transforming the input signal and the filtered signal by a matrixing operation into the first and second output signals, where the matrixing operation depends on the correlation parameter and the level parameter.
Dependencies are inferred from the claim text.