Energy-based process for the detection of signals drowned in noi

Details Energy-based process for the detection of signals drowned in noi Energy-based process for the detection of signals drowned in noi

1994-04-07

1996-04-23

Trammell, James P.

Boots, shoes, and leggings

364574, H04B 1500

Patent

active

055110096

ABSTRACT:
The energy-based process according to the invention for the detection of useful signals drowned in noise consists of starting from a frame of samples of a noisy signal grouped in successive frames, making a pre-classification by comparing the energies of successive samples of each frame with a determined optimum threshold and sorting samples which have a high probability of belonging to a "noise only" class into this class, and then for each of these samples detecting those that have a sufficiently high energy so that they have a high probability of belonging to a "noise+useful signal" class, this second class being defined using the first class as a reference.

REFERENCES:
patent: 4630304 (1986-12-01), Borth et al.
patent: 4905286 (1990-02-01), Sedgwick et al.
patent: 4984275 (1991-01-01), Watanabe et al.
patent: 5319736 (1994-06-01), Hunt
patent: 5337251 (1994-08-01), Pastor
Merhav, "Universal classification for Hidden Markov Models", IEEE Transactions on Information Theory, vol. 37, No. 6, Nov. 1991, New York, pp. 1586-1594.
Sims, "A Speech To Noise Ratio Measurement Algorithm", Journal Of The Acoustical Society Of America, vol. 78, No. 5, Nov. 1985, pp. 1671-1674.
Kay, et al. "Spectrum Analysis--A Modern Perspective", Proceedings Of The IEEE, vol. 69, No. 11, Nov. 1981, New York, pp. 1380-1419.
Boll, et al. "Suppression of Acoustic Noise in Speech Using Spectral Substraction", vol. 27, No. 2, Apr. 1979, New York, pp. 113-120.

Affiliated with

Also associated with

Rating

Energy-based process for the detection of signals drowned in noi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Energy-based process for the detection of signals drowned in noi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy-based process for the detection of signals drowned in noi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2314440