“Throaty” voice quality has been regarded by voice pedagogues as undesired and even harmful. The present study attempts to identify acoustic and physiological correlates of this quality. One male and one female subject read a text habitually and with a throaty voice quality. Oral pressure during p-occlusion was measured as an estimate of subglottic pressure. Long-term-average spectrum (LTAS) an...

SUMMARY Because of the aperiodicity of many tracheoesophageal voices, acoustic analysis of the tracheoesophageal voice is less straightforward than that of the normal voice. This study presents the development and testing of an acoustic signal typing system based on visual inspection of a narrow-band spectrogram that can be used by researchers for classification of voice quality in tracheoesoph...

Speech quality is an interesting and very important aspect not only from linguistic and/or phonetic viewpoint but also from the viewpoint of speech technology. This study has been conducted from the latter point of view. A method has been developed based on the analysis-synthesis technique which enables to control voice quality by independently manipulating the voice source and the vocal tract ...

In this study three different prominence and speech melody related effects on voice quality were studied using an inverse filtering based method. The hypothesis that prominence as a function of sentence and word stress is signaled with more pressed voice quality was tested. The results indicated discrepancies in the parameterization results, and the original hypothesis could not be confirmed. I...

purpose: this study aimed to identify and introduce the most important evaluation and production criteria of audio books based on users’ point of view.method: in terms of methodology, this study was among the quantitative studies and done with descriptive survey. the research instrument was researcher-made questionnaire. population was all users of audiolib website that used from audio books mo...

Abstract—Voice over Internet Protocol (VoIP) may provide good services through Mobile Ad hoc Networks (MANets) platform. It may cover many application scenarios range from safety to comfort related services. However, these networks introduce many challenges for supporting voice with QoS requirements. In this study, we take the first step in addressing the practical issues related to deploying v...

Internet real-time voice communication involves transmitting digitised voice signals which can be lost in the packet switched network environment of TCP/IP, thereby causing intermittent voice losses and quality degradations. Various methods such as silence substitution, waveform substitution, sample interpolation, Xor mechanism, embedded speech coding, and combined rate and control mechanism ha...

While successive technology has elevated most aspects of audio quality, this paper shows how it has lowered some aspects, especially bandwidth. We show how technology and network integration reduce our ability to discriminate phonemes and identify speakers. High-fidelity Voice-overIP is proposed as way to fix this.

VoIP is gaining acceptance into the corporate world especially, in small and medium sized business that want to save cost for gaining advantage over their competitors. The good voice quality is one of challenging task in deployment plan because VoIP voice quality was affected by packet loss and jitter delay. In this paper, we study the effect of background traffic packet size to voice quality. ...