AN-384 Audio Noise Reduction and Masking (Rev. C)
ثبت نشده
چکیده
This application report discusses audio noise reduction and masking.
منابع مشابه
A novel psychoacoustically motivated audio enhancement algorithm preserving background noise characteristics
In this paper we propose an algorithm for reduction of noise in audio signals. In contrast to several previous approaches we do not try to achieve a complete removal of the noise, but instead our goal is to preserve a pre-defined amount of the original noise in the processed signal. This is accomplished by exploiting the masking properties of the human auditory system. The speech and noise dist...
متن کاملNeuro-rough control of masking thresholds for audio signal enhancement
The paper addresses the problem of neuro-rough hybridisation applied to digital processing of audio signals. Moreover, the application of some selected soft computing techniques to non-stationary noise reduction is described. Some attention is also put to a discussion of the intelligent decision algorithms performance. The noise reduction algorithm is based on the new perceptual approach exploi...
متن کاملRobust Audio Watermarking for Copyright Protection
This paper introduces an audio watermark encoding system that is robust to commonly used audio compression techniques such as MP3, AAC and OGG. The watermark is embedded by applying MPEG Layer 2 Model 2 psychoacoustic masking in an iterative way. The decoding is performed by using a correlation based blind decoding algorithm supported via a wavelet denoising module. Unlike most of the existing ...
متن کاملNoise Suppression Using Active Noise Control and Masking
This paper attempts to make the public/workplace environment more pleasant by combining techniques of active noise control (ANC) and the limited ability of the human auditory system to register a sound in the vicinity of another sound of sufficiently higher intensity. The paper examines the limitations of ANC and masking techniques, and proposes a way to integrate these techniques. A process fo...
متن کاملA New Approach for Reduction of Supergaussian Noise Using Autoregressive Interpolation and Time-Frequency Masking
A new approach for noise reduction is presented. The method is capable of reducing noise of Gaussian, supergaussian and impulsive characteristics in degraded high-quality audio signals. The approach is based on classical autoregressive (AR) detection and interpolation, applied to the residual signal of a binary time-frequency (T-F) masking process. Analytic inspection allows for predicting the ...
متن کامل