This paper introduces a design scheme of audio post-processing circuit for CATV STB based on STi5518? It provides 5.1 analog sound channel output and S/PDIF digital audio interface output.
In this paper, by use of a generalized phase-integral approximation, the difficulty of the classical WKB approximation which diverges on the turning-point is overcome, and then the general expressions of the smooth-averaged sound field in underwater sound channel are obtained.
This programming process includes actively importing sound,volume control,sound channel,alternately controlling pause and stop So as to serve for interactive multimedia courseware.
The coding standard of MPEG-4 AAC(Advanced Audio Coding) is the latest and most efficient Hi-Fi digital audio coding method among all the existing perceptive audio coding standards. It stands for the most advanced audio coding technology, providing high compression ratio, excellent rebuilt timbre, flexible sound track configuration and diverse algorithm complexities for applications in different levels.
The transducer is fixed in the pipe wall of DN150, and the mode offixing are single track and Z type. The angle between sound track direction and flowdirection of gas is 45o.
By analysis based on time-domain and frequency-domain, the producing and formative mechanism of acoustic signal is approached, and the tone channel is put forward.
To find the approach of monitoring welding quality by arc sound,the frequency spectral characteristics of the arc sound signals in short circuit GMAW process were analyzed. The concept of tone channel of welding arc was introduced,which was considered a time dependent distributed parameters system influenced by welding parameters,arc behavior and the other factors.
Aiming at on-line monitoring of welding quality, the time and frequency characteristics are analyzed of the arc sound signals in short circuit gas metal arc welding (GMAW). The concept of tone channel and its equivalent electrical model are suggested.
In the hydrological conditions of a biaxial sound channel, the cross-correlation between acoustic signals received at points spatially separated (from 10 to 63 km) along the sound propagation track is investigated.
A specific example of calculating mode amplitudes is analyzed for a deep-water sound channel with a sound speed profile nonadiabatically varying with distance.
This study examines the roles played by sound track type, attention to sound track, and meaning of sound track in mediating the effects of false autonomic feedback on attractiveness ratings of erotic stimuli.
Male subjects were instructed either to ignore or to pay attention to a pulsed or continuous sound track that was described either as heart-rate feedback or as a neutral auditory stimulus while slides of nude females were shown.
Slides associated with a change in either the pulsed sound track or the continuous-tone sound track (increase slides) were subsequently rated as significantly more attractive than those associated with steady sound (stable slides).
This pattern of findings contrasts with those of an earlier experiment (Parkinson >amp;amp; Manstead, 1981), where differential unpleasantness ratings of slides of skin diseases depended on the attention paid to the sound track but not on its meaning.
DSR provides particular benefits for the applications of mobile devices such as improved recognition performance compared to using the voice channel and ubiquitous access from different networks with a guaranteed level of recognition performance.
The present study examined preschoolers' and adults' ability to identify and label the emotions of happiness, sadness, and anger when presented through either the face channel alone, the voice channel alone, or the face and voice channels together.
The present study examined preschoolers' and adults' ability to identify and label the emotions of happiness, sadness, and anger when presented through either the face channel alone, the voice channel alone, or the face and voice channels together.
In particular, the micropulses in the low-frequency channel arrive earlier than predicted by the dispersion measures derived previously from the mean pulse profiles.
A joint space-frequency multiuser symbol sequence detector is developed for all active users within one macrocell without space-frequency channel estimation.
In comparison with schemes based on channel estimation, our algorithm need not explicitly estimate the space-frequency channel for each active user, so it has lower computation complexity.
声道
sound channel
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