Storaging or transmission of speech signals at very low bit rate is a hot area in the field of speech processing. We used stochastic inter-frame interpolators and vector quantization (VQ) as a new method for developing a high quality 1200 BPS speech vocoder. The objective and subjecgtive test results show that performance of the new vocoder is compairable with 4800 BPS standard vocoders (as CELP).

Storaging or transmission of speech signals at very low bit rate is a hot area in the field of speech processing. We used stochastic inter-frame interpolators and vector quantization (VQ) as a new method for developing a high quality 1200 BPS speech vocoder. The objective and subjecgtive test results show that performance of the new vocoder is compairable with 4800 BPS standard vocoders (as CELP).

The current issue of the Iranian Rehabilitation Journal contains original research evaluating the efficacy of addiction rehabilitation an evaluation of a child rehabilitation system for community based research, reading program for children with down syndrome, auditory stream segregation in auditory processing disorder, speech and language disorders, quality of life of adolescents with hearing ...

For many years, speech has been the most natural and efficient means of information exchange for human beings. With the advancement of technology and the prevalence of computer usage, the design and production of speech recognition systems have been considered by researchers. Among this, lip-reading techniques encountered with many challenges for speech recognition, that one of the challenges b...

A reliable speech enhancement method is important for speech applications as a pre-processing step to improve their overall performance. In this paper, we propose a novel frequency domain method for single channel speech enhancement. Conventional frequency domain methods usually neglect the correlation between neighboring time-frequency components of the signals. In the proposed method, we take...

Abstract The noise in the industrial production environment is more complex than application scenario home or office environment, and most of loudness much larger. Automatic speech recognition(ASR) system will fail when front-end signal processing SNR too poor. At this time ability particularly important. product solution mentioned article involves multiple point. It includes omnidirectional Mi...

this article deals with human development as a biosociopsychological phenomena with an emphasis on the theoretical outlooks of outstanding phenomenologists such as freud, erikson and piagent. first, life cycles, and then the interaction of human sensory systems with the external stimuli, and the information processing system involved are discussed, with a special emphasis on the relation betwee...