Event Location by Triangular Interpolation for Temporal Decomposition of Speech
Main Article Content
Abstract
For low-bit-rate coding and synthesis the evolution of spectral parameters is a source of redundancy to be considered. A triangular interpolation spectral measure (TRISM) is proposed as the basis for an open-loop event location criterion for low-delay temporal decomposition (TD). TRISM comes as an improvement in linear interpolation error measurement over the spectral transition measure (STM). While STM is heuristic and presupposes asymmetric event functions, TRISM is a minimum square interpolation error based on symmetric functions. Minimun TRISM (MINTRISM) TD interpolates up to 13 frames between adjacent events at a mean event rate of 15 Hz and interpolation error level equivalent to that of standard low-bit-rate speech coders. The MINTRISM criterion is also a more stable solution to the location of events and determination of their number than previous global and local TD methods.
Article Details
How to Cite
Arjona Ramírez, M. (2015). Event Location by Triangular Interpolation for Temporal Decomposition of Speech. Journal of Communication and Information Systems, 24(1). https://doi.org/10.14209/jcis.2009.3
Issue
Section
Regular Papers
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
___________