Audio control system
AssigneeDavid O'Reilly
InventorMichael D. D. England
Life of this patent
Estimating the term…
Abstract
An audio control system comprised of an equalizer which divides and controls the level of a plurality of audio frequency bands and an electronic display which provides an illuminated indication of equalizer settings and output levels in each of the audio frequency bands. The audio control system can receive stereophonic input from one of several sources and provide an output to front and rear pairs of amplifiers. The electronic display is comprised of a plurality of light-emitting diodes arranged in columns which provide either a static display of equalizer settings or a calibrated display indicating the output levels in each audio frequency band of the equalizer.
Claims25
An audio control system comprising:
- means for connecting a stereophonic input signal;
- audio processing means for processing said stereophonic signal;
- dividing means for dividing the stereophonic signal from said processing means into a plurality of audio frequency bands;
- level adjusting means for adjusting the level of each of said plurality of audio frequency bands;
- and
- electronic display means coupled to said level adjusting means for electronically displaying the relative adjusted level in each of said plurality of bands;
- said electronic display means including means for dynamically displaying the output of each of said plurality of audio frequency bands comprising:
- a pre-amplifier receiving the output of said audio processor;
- a band pass filter receiving the output of said pre-amplifier;
- an active rectifier for rectifying the output of the band pass filter;
- light column means;
- means connecting the output of said active rectifier to said light column means whereby the light column means varies according to the level of each audio frequency band.
Dependencies are inferred from the claim text.