نتایج جستجو برای: audio signal processing

تعداد نتایج: 866730  

Journal: :The Journal of the Institute of Television Engineers of Japan 1990

2006

Wideband FM : Transmitted with deviation ratio of 5/1, ( +90kHz ), but the final filtered audio has a 15kHz bandwidth. Phase Locked Loop: Used to track a signal in a wide noise bandwidth to yield a signal with a low noise bandwidth. DSSS Chip Rate ( broadband )/ Signal BW ( narrow ) is called processing gain. 1.25 Mb/s chip rate and 12.5 kHz audio filter yields a "processing gain" of 100/1 Corr...

In this paper, we present a Compressive Sampling (CS)-based feature extraction method for audio signals. In the proposed approach, the audio signal is firstly segmented by hamming windows and the Discrete Fourier Transform (DFT) of the samples is calculated within each frame. Then, the normalized values of the DFT coefficients of each frame are accumulated. At the next step, the second DFT is a...

1996
Andrzej Czyzewski

This paper demonstrates a KDD method applied to audio data analysis, particularly, it presents possibilities which result from replacing traditional methods of analysis and acoustic signal processing by KDD algorithms when restoring audio recordings at&cted by strong noise.

2012
ChingShun Lin

Computer Engineering Group Assistant Professor ChingShun Lin Ph.D., Electrical Engineering, University of Southern California, U.S.A. Fields of study: Immersive System, Multimedia Application, Spatial Audio Rendering, Multichannel Audio Signal Processing, Virtual Technology, Transformation between Image and Graphics, and Soft Computing.

2004
Roger B. Dannenberg

Real-time interactive software can be difficult to construct and debug. Aura is a software platform to facilitate highly interactive systems that combine audio signal processing, sophisticated control, sensors, computer animation, video processing, and graphical user interfaces. Moreover, Aura is open-ended, allowing diverse software components to be interconnected in a real-time framework. A r...

Journal: :journal of biomedical physics and engineering 0
m.m. movahedi faculty member of medical physics and medical engineering, department of medical physics and medical engineering, school of medicine, shiraz university of medical sciences, shiraz, iran a.r. mehdizadeh assistant professor of medical physics and medical engineering, department of medical physics and medical engineering, school of medicine, shiraz university of medical sciences, shiraz, iran a. alipour conscioustronics foundation, shiraz, iran

bci is one of the most intriguing technologies among other hci systems, mostly because of its capability of recording brain activities. spelling bcis, which help paralyzed people to maintain communication, are one of the striking topics in the field of bci. in this scientific a spelling bci system with high transfer rate and accuracy that uses ssvep signals is proposed. in addition, we suggeste...

2006
Manuel Briand David Virette Nadine Martin

Low bit rate parametric coding of multichannel audio is mainly based on Binaural Cue Coding (BCC). Another multichannel audio processing method called upmix can also be used to deliver multichannel audio, typically 5.1 signals, at low data rates. More precisely, we focus on existing upmix method based on Principal Component Analysis (PCA). This PCA-based upmix method aims at blindly create a re...

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