Back to results
US 8,509,457 B2Granted
Tone balance volume control
AssigneeTHX Ltd.
InventorsCasey Divine, John Dahl
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 sound system for a sound content playback comprising:
- means for providing a content sound signal that was mixed and recorded at a reference sound pressure level;
- a digital sound receiver for processing the content sound signal, the sound receiver having a sound processing microprocessor and a master volume control with the sound processing of the microprocessor related to the reference sound pressure level and the master volume control, the sound receiver including;
- a low frequency boost shelf digital sound filter processing the content sound signal as a continuous function of the master volume control and the reference sound pressure level;
- a high frequency boost shelf digital sound filter processing the content sound signal as a continuous function of the master volume control and the reference sound pressure level.
1 more element
A sound system for a sound content playback comprising:
- a digital sound receiver having a one or more sound input ports for receiving a sound content which was mixed and recorded at a reference sound pressure level 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 and the reference sound pressure level to process the sound content;
- and
- a plurality of speakers connected to the sound output ports for presentation of the processed sound content.
Dependencies are inferred from the claim text.