This paper presents a low-complexity variable step-size control for acoustic echo cancellation filters. The proposed control method is based on two supplementary adaptive filters with low memory length. The first supplementary filter is used to control the double-talk situations while the second supplementary filter is employed to detect variations of the echo-path impulse response. The variabl...

The best voices in text-to-speech synthesis are currently obtained via acoustic units concatenation-based systems. In such systems, the choice of units whose concatenations will produce an acoustic message is a crucial stage. Moreover, it can be observed that current TTS systems use acoustic units which most often correspond to variable-length phonetic descriptions. In this article, an original...

In recent years, need to increase the convenience of trips in railway vehicles causes that train operators and manufacturers focus on reducing the noise level which is sensed by passengers. In this paper, first the state of modeling acoustic noise in cab train is discussed and natural frequencies and acoustic mode shapes are derived and then formulation of acoustic pressure in the cab will be o...

in this paper, we propose a new full-fuzzy video ratecontrol algorithm (rca) for variable bit rate (vbr) videoapplications. the proposed rca provides high qualitycompressed video with a low degree computational complexity.by controlling the quantization parameter (qp) on a picturebasis, it produces vbr video bit streams. the proposed rcahas been implemented on the jm h.264/avc video codec andth...

A theory of the segmental component of speech motor control is presented, followed by supporting data. According to the theory, speech movements are programmed to achieve auditory/acoustic goals. The goals are determined partly by &&saturation e!ects'', which are basic characteristics of speakers' production systems that make it possible to produce a sound output that has some relatively stable...

worship places are psychologically evolved in human’s mind, because his unconscious mind manifests evolution differently in such places. every religion has its concerning style, while islam and christianity represent two different blazes in two separate places. church and mosque are very important worship places and designers try to create a spiritual sense of place for the audience. whereas ac...