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Evolutionary tuning of filters coefficients for binaural audio equalization
Applied Acoustics, 2020Abstract This paper presents a novel multichannel audio equalization technique based on evolutionary computation algorithms for tuning the filters coefficients. Specifically, two distinct evolutionary algorithms are used on purpose, i.e. the Particle Swarm Optimization (PSO) and Gravitational Search Algorithm (GSA).
Giovanni Pepe +3 more
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Method and equalization of home audio systems
The Journal of the Acoustical Society of America, 1982A method is provided for correcting errors in the overall reproduction characteristics of an audio system installed in a residence. The method may include the steps of generating a test signal as an input to the audio system and converting the resulting sound generated by the system and its room environment into stored data whose values are a function ...
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Optimum digital audio equalizers with flat frequency response
2012 9th International Conference on Communications (COMM), 2012In this paper a design method of the optimum digital audio equalizers with small ringing impulse responses, by using symmetric B-spline functions is presented. It is important to have a flat frequency response for the audio equalizer. The solution is to approximate the response of each frequency band by using spline functions, that insures continuous ...
Lucian Stanciu, Cristian Stanciu
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Optimal Design of Digital Audio Parametric Equalizer
Journal of Information and Computational Science, 2014The traditional design method of digital audio parametric equalizer often has spectrum aliasing between two adjacent sub-filters with closed center frequencies. A modified design method for digital parametric equalizer is proposed in this paper. A computer-aided design method is adopted to approach the desired amplitude-frequency responses based on ...
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Parametric Hear through Equalization for Augmented Reality Audio
ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019Augmented Reality (AR) audio applications require headphones to be acoustically transparent so that real sounds can pass through unaltered for natural fusion with virtual sounds. In this paper, we consider a multiple source scenario for hear through (HT) equalization (EQ) using closed-back circumaural headsets.
Rishabh Gupta +3 more
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Comparative Analysis of Audio Equalizer Typologies
This paper analyzes three distinct topologies of audio equalizers. The focus is on understanding the fundamental principles behind each topology the Three-band equalizer, the five-band equalizer, and the single input multi-band split topology by examining their block diagrams, schematics, and working principles.Mohan Khambalkar +2 more
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A ten-channel equalizer for digital audio-applications
IEEE Transactions on Circuits and Systems, 1989The design and implementation of a high-quality digital audio equalizer set composed of 10 equalizer sections with a worst-case overall signal-to-noise ratio greater than 90 dB, which is suitable for CD (compact-disc) applications is discussed. The implementation of the equalizer sections has been realized with wave digital filters.
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Parametric audio equalizer based on short-time fourier transform
2017 IEEE 17th International Conference on Communication Technology (ICCT), 2017Equalizers (EQs) have been widely used in audio and acoustic processing to adjust the magnitude of certain frequency bands. This paper proposes a parametric EQ based on short-time Fourier transform (STFT). The audio signal is equalized in the frequency domain by modifying its short-time spectrum with the interpolated magnitude frequency response of the
Peng Zhang +5 more
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A New Computer-Controlled Graphic Audio Equalizer IC
IEEE Transactions on Consumer Electronics, 1984Many high-fidelity consumer audio systems include graphic equalizers to control the overall frequency response. This affords the user added flexibility in compensating for shortcomings in his equipment and listening environment. Graphic equalizers, whereas used in the past by only audiophiles, have now become so commonplace that they are even included ...
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Implementation of Android Audio Equalizer Based on FFmpeg
2020With the continuous development of multimedia technology, music has become an indispensable part of people’s daily life, so the audio equalizer used to improve the performance of music is also extremely important. This paper first introduces the development and use of the current excellent FFmpeg audio and video framework, and deeply analyzes the use ...
Weida Zhuang, Xingli He, Jinyang Lin
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