Abstract
This paper deals with the effects of packet loss on speech recognition over IP connections. The performance of our continuous French speech recognition system is here evaluated for different transmission scenarios. A packet loss simulation model is first proposed in order to simulate different channel degradation conditions. The packet loss problem is also investigated in real transmissions through IP. Because packet loss impact may be different according to the speech coder used to transmit data, different transmission conditions with different audio codecs are also investigated. Several reconstruction strategies to recover lost information are then proposed, and tested. Another solution for dialog applications is also suggested, where the relative weight of the language and acoustic model is changed according to the packet loss rate. The results show that the speech recognition performance can be augmented by the solutions here presented.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.