Improving upon toll quality speech for VoIP

Autor:	D. Kapilow, R.V. Cox, David Malah
Rok vydání:	2005
Předmět:	Voice activity detection Computer science Network packet Speech recognition Speech coding PSQM computer.file_format Intelligibility (communication) Speech processing Linear predictive coding Pulse-code modulation computer Packet loss concealment
Zdroj:	Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004..
DOI:	10.1109/acssc.2004.1399163
Popis:	It is well known that wider bandwidth speech is preferred both for quality and intelligibility. In this paper we describe a new, low complexity method for creating wider bandwidth speech from clean telephone bandwidth speech. In addition, we describe a packet loss concealment technique that has been standardized for ITU-T Rec. G.711 64 kb/s PCM and is applicable to wider bandwidth speech as well. Together, these two techniques address two of the primary issues with Voice over IP-how to provide greater fidelity to customers and how to overcome packet losses when they do occur.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3f36b107ad3be5d4ac85850ea1aa676c https://doi.org/10.1109/acssc.2004.1399163 Zobrazit plný text záznamu