Bandwidth Extension of Telephone Speech Aided by Data Embedding. (28th November 2006)
- Record Type:
- Journal Article
- Title:
- Bandwidth Extension of Telephone Speech Aided by Data Embedding. (28th November 2006)
- Main Title:
- Bandwidth Extension of Telephone Speech Aided by Data Embedding
- Authors:
- Sagi Sagi, Ariel Ariel
Malah Malah, David David - Other Names:
- Lee Lee Tan Tan Academic Editor.
- Abstract:
- Abstract : A system for bandwidth extension of telephone speech, aided by data embedding, is presented. The proposed system uses the transmitted analog narrowband speech signal as a carrier of the side information needed to carry out the bandwidth extension. The upper band of the wideband speech is reconstructed at the receiving end from two components: a synthetic wideband excitation signal, generated from the narrowband telephone speech and a wideband spectral envelope, parametrically represented and transmitted as embedded data in the telephone speech. We propose a novel data embedding scheme, in which the scalar Costa scheme is combined with an auditory masking model allowing high rate transparent embedding, while maintaining a low bit error rate. The signal is transformed to the frequency domain via the discrete Hartley transform (DHT) and is partitioned into subbands. Data is embedded in an adaptively chosen subset of subbands by modifying the DHT coefficients. In our simulations, high quality wideband speech was obtained from speech transmitted over a telephone line (characterized by spectral magnitude distortion, dispersion, and noise), in which side information data is transparently embedded at the rate of 600 information bits/second and with a bit error rate of approximately3 ⋅ 10 − 4 . In a listening test, the reconstructed wideband speech was preferred (at different degrees) over conventional telephone speech in92.5 % of the test utterances.
- Is Part Of:
- EURASIP journal on advances in signal processing. Volume 2007(2007)
- Journal:
- EURASIP journal on advances in signal processing
- Issue:
- Volume 2007(2007)
- Issue Display:
- Volume 2007, Issue 2007 (2007)
- Year:
- 2007
- Volume:
- 2007
- Issue:
- 2007
- Issue Sort Value:
- 2007-2007-2007-0000
- Page Start:
- Page End:
- Publication Date:
- 2006-11-28
- Subjects:
- Signal processing -- Periodicals
Traitement du signal
Signal processing
Periodicals
621.3822 - Journal URLs:
- https://asp-eurasipjournals.springeropen.com/ ↗
http://link.springer.com/ ↗
http://www.hindawi.com/journals/asp/ ↗ - DOI:
- 10.1155/2007/64921 ↗
- Languages:
- English
- ISSNs:
- 1687-6172
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 11248.xml