Head related transfer functions for panned stereo audio content

Details Head related transfer functions for panned stereo audio content Head related transfer functions for panned stereo audio content

2004-10-14

2009-12-15

Faulk, Devona E (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

C381S001000, C381S018000, C381S019000, C381S309000, C381S310000, C381S074000

Reexamination Certificate

active

07634092

ABSTRACT:
A method to process audio signals, an apparatus accepting audio signals, a carrier medium that carried instructions for a processor to implement the method to process audio signals, and a carrier medium carrying filter data to implement a filter of audio signals. The method includes filtering a pair of audio input signals by a process that produces a pair of output signals corresponding to the results of: filtering each of the input signals with a HRTF filter pair, and adding the HRTF filtered signals. The HRTF filter pair is such that a listener listening to the pair of output signals through headphones experiences sounds from a pair of desired virtual speaker locations. Furthermore, the filtering is such that, in the case that the pair of audio input signals includes a panned signal component, the listener listening to the pair of output signals through headphones is provided with the sensation that the panned signal component emanates from a virtual sound source at a center location between the virtual speaker locations.

REFERENCES:
patent: 3088997 (1963-05-01), Bauer
patent: 3236949 (1966-02-01), Atal et al.
patent: 4893342 (1990-01-01), Cooper et al.
patent: 4910779 (1990-03-01), Cooper et al.
patent: 5333200 (1994-07-01), Cooper et al.
patent: 5440639 (1995-08-01), Suzuki et al.
patent: 6091894 (2000-07-01), Fujita et al.
patent: 6421446 (2002-07-01), Cashion et al.
patent: 6614910 (2003-09-01), Clemow et al.
patent: 6766028 (2004-07-01), Dickens
patent: 7167567 (2007-01-01), Sibbald et al.
patent: 2006/0045274 (2006-03-01), Aarts et al.
patent: 2008/0056503 (2008-03-01), McGrath
patent: WO97/25834 (1997-07-01), None
patent: WO98/20707 (1998-05-01), None
patent: WO2004/028205 (2004-04-01), None
A. Mouchtaris, P. Reveliotis and C. Kyriakakis. “Inverse Filter Design for Immersive Audio Rendering Over Loudspeakers.”IEEE Transactions On Multimedia, vol. 2, No. 2, Jun. 2000.
W. G. Gardner. “Transaural 3-D audio.” M.I.T. Media Laboratory Perceptual Computing Section Technical Report #342, 1995.
W. G. Gardner. “3D audio and Acoustic Environmental Modeling.” Wavearts, 1999, retrieved on Aug. 13, 2008 at http://3dsoundsurge.com/files/2DAudioWhitePaper.pdf.
J Yang et al., “Development of virtual sound imaging system using triple elevated speakers,” IEEE Transactions on Consumer Electronics, vol. 50, No. 3, Aug. 2004.

Affiliated with

Also associated with

Rating

Head related transfer functions for panned stereo audio content does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head related transfer functions for panned stereo audio content, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head related transfer functions for panned stereo audio content will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4069806