The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2014
Filed:
Feb. 09, 2009
Hanks Zeng, Red Bank, NJ (US);
Prakash Khanduri, Freehold, NJ (US);
Ken Kasiske, Jackson, NJ (US);
Ronish Patel, Manalapan, NJ (US);
Nelson Sollenberger, Farmingdale, NJ (US);
Hanks Zeng, Red Bank, NJ (US);
Prakash Khanduri, Freehold, NJ (US);
Ken Kasiske, Jackson, NJ (US);
Ronish Patel, Manalapan, NJ (US);
Nelson Sollenberger, Farmingdale, NJ (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Methods and systems for dynamic range control in an audio processing system are disclosed and may include controlling a dynamic range of an audio signal by expanding the dynamic range utilizing a dynamic expander, and dividing the audio signal into a plurality of frequency bands. Each of the bands may be individually compressed utilizing a multi-band compressor. A sum of the individually compressed frequency bands may be compressed utilizing a full-band compressor. The audio signal may be filtered utilizing a pre-emphasis filter, such as an infinite impulse response filter and may be divided into frequency bands utilizing one or more finite impulse response filters and/or delay modules. The dynamic expander may include adaptive thresholds and an envelope detector. Each of the frequency bands may be compressed utilizing syllabic compression in the multi-band compressor. The compressed sum of compressed plurality of bands may be processed utilizing an audio CODEC.