Processing of an audio signal for presentation in a high noise environment
AssigneeAnthony Bongiovi
InventorAnthony Bongiovi
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Abstract
In accordance with the invention, audio signals are specially processed for sound presentation in a high noise environment. The electrical signal representative of the sound is first subjected to equalization to preferentially reduce the magnitude of bass signals while increasing the magnitude of treble signals. The equalized signal is then compressed, and the compressed signal is subjected to “mirror image” equalization which increases the magnitude of bass signals while reducing the magnitude of treble signals. The resulting signal fed to the speakers provides a sound presentation of compressed volume range and a bass-rich sound spectrum. It is particularly useful for providing quality sound presentation in a high noise environment.
Claims8
Apparatus for processing an electrical audio signal for presentation of enhanced quality sound in a high noise environment, said apparatus comprising:
- an equalizing circuit for equalizing a received audio signal by reducing the amplitude of low frequency portions of said audio signal corresponding to audible bass sounds and increasing the amplitude of high frequency portions of said audio signal corresponding to audible treble sounds;
- a compressor circuit for compressing the dynamic range of said equalized audio signal by attenuating high amplitude portions of said equalized audio signal relative to low amplitude portions of said equalized audio signal;
- and
- a mirror image equalizing circuit for mirror image equalizing said compressed equalized audio signal by increasing the amplitude of said low frequency portions of said compressed equalized audio signal and decreasing the amplitude of said high frequency portions of said compressed equalized audio signal.
Dependencies are inferred from the claim text.