Audio signal processing using improved perceptual model

Details Audio signal processing using improved perceptual model Audio signal processing using improved perceptual model

G - Physics

10

L

G10L 19/12 (2006.01) G10L 19/02 (2006.01) H04R 3/00 (2006.01)

Patent

CA 2419765

A perceptual model based on psychoacoustic auditory experiments is based on the (time-domain) roughness of an input signal envelope in particular cochlea filter bands rather than the noise-like vs. tonal nature of the input signal. In illustrative embodiments, frequency domain techniques are used to develop envelope and envelope roughness measures, and such roughness measures are then used to derive Noise Masking Ratio (NMR) values for achieving a high level of noise masking in coder embodiments. Coder embodiments based on present inventive teachings are compatible with well- known AAC coding standards.

Affiliated with

Also associated with

Rating

Audio signal processing using improved perceptual model does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Audio signal processing using improved perceptual model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Audio signal processing using improved perceptual model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1499375