Audio filtering with virtual sample rate increases
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 17, 2018
Issued Date -
N/A
app pub date -
Mar 26, 2014
filing date -
Mar 26, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates broadly to a method of digitally filtering an audio signal by applying a composite audio filter. The composite audio filter may be obtained by applying one audio filter to another audio filter each having the same predetermined sample rate including neighboring sample points. The other audio filter may also include one or more intervening sample points between adjacent of its neighboring sample points. The one audio filter may be applied to the other audio filter at an adjusted sampling rate relative to the other audio filter. The adjusted sampling rate may be inversely proportional to the number of intervening sample points relative to the number of neighboring sample points for the other filter. The frequency response curve for the composite filter derived using the adjusted sampling rate may be more indicative of an idealized lowpass filter. The frequency response with the adjusted sampling rate may display a more bell-shaped characteristic compared with the frequency response without an adjusted sampling rate (shown in broken line detail).
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully