Change search
ReferencesLink to record
Permanent link

Direct link
A Mixed Analog: Digital Hybrid for Speech Enhancement Purposes
Responsible organisation
2005 (English)Conference paper (Refereed) Published
Abstract [en]

This paper presents and evaluates a hybrid implementation of a low complexity algorithm for speech enhancement, the Adaptive Gain Equalizer (AGE). The AGE is a subband based time domain method for instantaneous boosting of speech. By combination of digital analysis and analog synthesis, main advantages of the digital domain and the analog domain are utilized. The hybrid solution is implemented on a printed circuit board and evaluated in real-time. The development time of the proposed solution was very short, the solution is flexible, robust, has high signal bandwidth in the signal chain and does not require a Voice Activity Detector (VAD). Furthermore, the solution is not restricted by quantization errors in the signal chain and does not require a high speed Digital Signal Processor (DSP) for analysis. Informal listening tests and Signal-to-Noise Ratio (SNR) measures verify excellent speech enhancement performance and quality.

Place, publisher, year, edition, pages
Kobe, Japan, 2005.
Keyword [en]
adaptive equalisers, analogue processing circuits, computational complexity, digital circuits, network analysis, network synthesis, speech enhancement
National Category
Signal Processing
URN: urn:nbn:se:bth-9516ISI: 000232002401002Local ID: 0-7803-8834-8OAI: diva2:837385
IEEE International Symposium on Circuits and Systems (ISCAS)
Available from: 2012-09-18 Created: 2005-04-12 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

fulltext(351 kB)16 downloads
File information
File name FULLTEXT01.pdfFile size 351 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Dahl, MattiasClaesson, Ingvar
Signal Processing

Search outside of DiVA

GoogleGoogle Scholar
Total: 16 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 18 hits
ReferencesLink to record
Permanent link

Direct link