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US 2008/0165987 A1Published application
Constant balance volume control
AssigneeTHX Ltd.
InventorCasey Divine
Life of this patent
Estimating the term…
Abstract
A constant balance volume control according to the present disclosure may provide a user with the ability to listen to program material originally mixed at a known “reference” level at any other suitable level without experiencing a substantial shift in tonal balance. A constant balance volume control may include two 2nd order biquad filters that are controlled in a continuous manner by the volume control of a system. The filters could be implemented in analog or digital form.
Claims3
A constant balance sound system for a surround sound playback system comprising:
- a digital sound receiver having a sound processing microprocessor and a master volume control and including;
- a low frequency boost shelf digital sound filter processing sound as a continuous function of the master volume control;
- a high frequency boost shelf digital sound filter processing sound as a continuous function of the master volume control.
A surround sound system for a content playback system comprising:
- a digital sound receiver having a one or more sound input ports for receiving content sound and one or more sound output ports, a master volume control, a sound processing microprocessor, a first 2nd order biquad sound filter and a second 2nd order biquad sound filter, the combined first and second 2nd order biquad sound filters operating together as a continuous function of the master volume control to process the content sound;
- and
- a plurality of speakers connected to the sound output ports for presentation of the processed content sound.
Dependencies are inferred from the claim text.