Multi-core platforms for beamforming and wave field synthesis

D Theodoropoulos, G Kuzmanov… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
Immersive-Audio technologies are widely used to build experimental and commercial audio
systems. However, most of them are based on standard PCs, which introduce performance …

A reconfigurable beamformer for audio applications

D Theodoropoulos, G Kuzmanov… - 2009 IEEE 7th …, 2009 - ieeexplore.ieee.org
Beamforming is a signal processing technique that improves the signal strength received
from a specific location. It is already used for many decades in telecommunications, while …

Online maximization of subband kurtosis for blind adaptive beamforming in realtime speech extraction

B Sallberg, N Grbic, I Claesson - 2007 15th International …, 2007 - ieeexplore.ieee.org
This paper presents a method for blind beamforming with application in realtime speech
extraction in a non-stationary environment. The blind beamforming is carried out using an …

Deep neural network based noised Asian speech enhancement and its implementation on a hearing aid app

X Fan, B Yang, W Chen, Q Fan - … on Asian and Low-Resource Language …, 2021 - dl.acm.org
This article studies noised Asian speech enhancement based on the deep neural network
(DNN) and its implementation on an app. We use the THCHS-30 speech dataset and the …

Applied methods for blind speech enhancement

B Sällberg - 2008 - diva-portal.org
Acoustic disturbances influence human speech communication by interfering with the
communication process. In the worst case, it is impossible to communicate at all due to these …

Online blind speech extraction based on a locally quadratic kurtosis criteria and a preprocessing automatic gain controller

B Sallberg, N Grbic, I Claesson - ELMAR 2007, 2007 - ieeexplore.ieee.org
This paper focuses on realtime speech extraction using blind adaptive beamforming. The
speech extraction is carried out using an approximation of the kurtosis measure in a …

Implementation of spectral subtraction using sub-band filtering in DSP C6748 processor for enhancing speech signal

U Purushotham, K Suresh - Advances in Machine Learning and Data …, 2018 - Springer
Implementation of novel algorithms on Digital Signal Processing [DSP] processor to extract
the speech signal from a noisy signal is always of immense interest. Speech signals are …

Minimalistic architecture for reconfigurable audio Beamforming

D Theodoropoulos, G Kuzmanov… - … Conference on Field …, 2010 - ieeexplore.ieee.org
In this paper, we propose a minimal programming model that is tailored to audio
Beamforming applications. The model consists of nine instructions that provide high …

Semi-Supervised Learning to Enhance Speech Signal for Mobile Communication

P Ugraiah, CK Shivabasave Gowda - SN Computer Science, 2020 - Springer
Abstract Machine learning algorithm to enhance the complex speech signal for mobile
communication is one of the research problems in signal processing. The objective of this …

Custom architecture for multicore audio beamforming systems

D Theodoropoulos, G Kuzmanov… - ACM Transactions on …, 2013 - dl.acm.org
The audio Beamforming (BF) technique utilizes microphone arrays to extract acoustic
sources recorded in a noisy environment. In this article, we propose a new approach for …