Vocal tract shapes of non-audible murmur production
نویسندگان
چکیده
منابع مشابه
Speaker verification with non-audible murmur segments
We propose a speaker verification method using non-audible murmur (NAM) segments, which are different from normal speech and hard for other people to catch them. To use NAM, we therefore take a text-dependent verification strategy in which each user utters her/his own keyword phrase and utilize not only speaker-specific but also keyword-specific acoustic information. We expect this strategy to ...
متن کاملStudy on speaker verification with non-audible murmur segments
We investigated a speaker verification method that uses nonaudible murmur (NAM) segments using newly collected data and obtained several findings that will be useful when speaker verification systems are made in practice. NAM is recorded using a special microphone placed on the surface of the body, so it includes almost no external noise and is hard for other people to hear. By utilizing these ...
متن کاملRemodeling of the sensor for non-audible murmur (NAM)
We developed the next generation of skin-attachment sensors for sampling NAM (Non-Audible Murmur) signals by using soft silicone, which has an acoustic impedance close to that of human flesh, as the prime medium of vibration. With new NAM microphones we could sample expanded target voice signal, suppressing air conduction noise signal to low by the experiment of synchronous stereo sampling of a...
متن کاملPhysics of body-conducted silent speech - production, propagation and representation of non-audible murmur
The physical nature of weak body-conducted vocal-tract resonance signals called non-audible murmur (NAM) were investigated using numerical simulation and acoustic analysis of the NAM signals. Computational fluid dynamics simulation reveals that a weak vortex flow occurs in the supraglottal region when uttering NAM; a source of NAM is a turbulent noise source produced due to a vortex flow. Furth...
متن کاملRecovering vocal tract shapes from MFCC parameters
Recovering vocal tract shapes from the speech signal is a well known inversion problem of transformation from the articulatory system to speech acoustics. Most of the studies on this problem in the past have been focused on vowels. There have not been general methods e ective for recovering the vocal tract shapes from the speech signal for all classes of speech sounds. In this paper we describe...
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ژورنال
عنوان ژورنال: Acoustical Science and Technology
سال: 2008
ISSN: 1346-3969,1347-5177
DOI: 10.1250/ast.29.195