Abstract
In this contribution we discuss methods to reduce the algorithmic delay of joint speech enhancement and low bit rate speech coding algorithms. We introduce a novel overlap/add scheme which can reduce the overall delay of the joint system for some speech coders considerably. The new scheme takes advantage of the fact that some low bit rate coders store a significant amount of look-ahead samples in their input buffer. The look-ahead samples often have less influence on the parameter estimation than the samples in the current frame. Therefore, these samples might be used by the coder without being fully overlapped or reconstructed and with only little effect on the quality of the coded speech. The concept has been successfully used for joint enhancement and coding using the 2.4 kbps versions of the MELP and the WI speech coders.
| Original language | English |
|---|---|
| Pages | 1463-1466 |
| Number of pages | 4 |
| Publication status | Published - 1999 |
| Event | 6th European Conference on Speech Communication and Technology, EUROSPEECH 1999 - Budapest, Hungary Duration: 1999 Sept 5 → 1999 Sept 9 |
Conference
| Conference | 6th European Conference on Speech Communication and Technology, EUROSPEECH 1999 |
|---|---|
| Country/Territory | Hungary |
| City | Budapest |
| Period | 99/9/5 → 99/9/9 |
Bibliographical note
Funding Information:We thank Prof. David Malah for making his speech enhancement code available.
Publisher Copyright:
© 1999 6th European Conference on Speech Communication and Technology, EUROSPEECH 1999. All rights reserved.
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Software
- Linguistics and Language
- Communication