Improved Modeling of Audio Signals by Modifying Transient Locations
نویسندگان
چکیده
We propose a method for obtaining an improved representation of transients in audio signals. The representation is based on a damped sinusoidal model. To improve the representation, transient locations are modified in such a way that a transient can start only at the beginning of a sinusoidal segment. The introduced modifications facilitate a reduction of the number of damped sinusoids needed to model a transient well and eliminate pre-echo artifacts. We verify with a listening test that the modifications do not result in a perceptual difference between the original and modified audio signals.
منابع مشابه
Modifying transients for efficient coding of audio
In this paper, we propose a method for eÆcient representation of transients in audio signals. We estimate the transient component of an original audio signal and modify the locations of the transients in such a way that the transients can occur only at locations de ned by a relatively coarse time grid. This procedure allows an eÆcient representation of transients with damped sinusoids. We also ...
متن کاملAn Improved Modular Modeling for Analysis of Closed-Cycle Absorption Cooling Systems
A detailed modular modeling of an absorbent cooling system is presented in this paper. The model including the key components is described in terms of design parameters, inputs, control variables, and outputs. The model is used to simulate the operating conditions for estimating the behavior of individual components and system performance, and to conduct a sensitivity analysis based on the give...
متن کاملAn analysis/synthesis tool for transient signals that allows a flexible sines+transients+noise model for audio
We present a flexible analysis/synthesis tool for transient signals that extends current sinusoidal and sines+noise models for audio to sines+transients+noise. The explicit handling of transients provides a more realistic and robust signal model. Because the transient model presented is the frequency domain dual to sinusoidal modeling, it has similar flexibility and allows for a wide range of t...
متن کاملExtending Spectral Modeling Synthesis with Transient Modeling Synthesis
Sinusoidal modeling has enjoyed a rich history in both speech and music applications, including sound transformations, compression, denoising, and auditory scene analysis. For such applications, the underlying signal model must efficiently capture salient audio features (Goodwin 1998). In this article, we present an accurate, efficient, and flexible three-part model for audio signals consisting...
متن کاملCombining pattern recognition and deep-learning-based algorithms to automatically detect commercial quadcopters using audio signals (Research Article)
Commercial quadcopters with many private, commercial, and public sector applications are a rapidly advancing technology. Currently, there is no guarantee to facilitate the safe operation of these devices in the community. Three different automatic commercial quadcopters identification methods are presented in this paper. Among these three techniques, two are based on deep neural networks in whi...
متن کامل