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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dorran, D. Lawlor, R. Coyle, E. |
| Copyright Year | 2003 |
| Description | Author affiliation: Dublin Inst. of Technol., Ireland (Dorran, D.) |
| Abstract | The duration of a speech passage can be altered using audio time-scale modification techniques. Time-scale modification can be achieved in the time domain by segmenting the input signal into overlapping frames and recombining the frames with an overlap differing from the analysis overlap. We present a time-scale modification algorithm that uses a simple peak alignment technique to synchronize overlapping synthesis frames. The peak alignment overlap-add (PAOLA) algorithm also takes advantage of waveform properties to ensure a high quality output for the minimum number of iterations. The new algorithm produces a time-scaled output of approximately equal quality to that of an adaptive implementation of the commercially popular synchronised overlap-add (SOLA) algorithm, but offers a computational saving ranging from a factor of 15 (for a time-scale factor of 0.5) to 170 (for a time-scale factor of 1.1). |
| Sponsorship | IEEE Signal Process, Soc |
| File Size | 269887 |
| File Format | |
| ISBN | 0780376633 |
| ISSN | 15206149 |
| DOI | 10.1109/ICASSP.2003.1198877 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-04-06 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Frequency synchronization Frequency domain analysis Signal synthesis Equations Time domain analysis Signal analysis Degradation Speech enhancement Natural languages Telephony |
| Content Type | Text |
| Resource Type | Article |
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