نتایج جستجو برای: speech coding

تعداد نتایج: 239496  

1998
Matthew P. Aylett Alice Turk

Clear speech is characterised by longer segmental durations and less target undershoot [9] which results in more extreme spectral features. This paper deals with the clarity of vowels produced in spontaneous speech in a large corpus of task-oriented dialogues. We present an automatic technique for measuring vowel clarity on the basis of a vowel’s spectral characteristics. This technique was eva...

2008

The study presents an acoustic analysis of 15 stressed short and long vowels of Dagbani with detailed formant frequency and duration characteristics of the vowels produced in the open monosyllabic (CV) phonetic context by 15 male and 15 female speakers of Nanuni, Nayahili, and Tomosili dialects of Dagbani. The aim of the study was to provide an acoustic evidence of vowel quality in Dagbani thro...

2017
Anne Schröder Simon Stone Peter Birkholz

The detection of deception in human speech is a difficult task but can be performed above chance level by human listeners even when only audio data is provided. Still, it is highly contested, which speech features could be used to help identify lies. In this study, we examined a set of phonetic and paralinguistic cues and their influence on the credibility of speech using an analysis-by-synthes...

2007
Camila Maia Rabelo Eliane Schochat

INTRODUCTION: The time-compressed speech test has existed since the 1970s. It is sensitive for evaluating auditory closure. However, it is not used in Brazil because until recently, it had not been developed in Portuguese. PURPOSE: To develop a compressed speech test in Portuguese, to apply it to normal-hearing adults, and to verify which of the compressed lists (50%, 60%, or 70%) is the most a...

2008
Thomas Hain Asmaa El Hannani Stuart N. Wrigley Vincent Wan

We present ‘webASR’, an online interface to our state-of-the-art automatic speech recognition (ASR) systems. It aims to provide the wider scientific research community with an interface to speech transcription for domains and applications where the generation of such transcripts was not previously feasible. The webASR interface allows the upload of audio files and, in turn, the download of auto...

2010
Suphattharachai Chomphan

Problem statement: In the modern speech communication technology, the speech coding with bitrate scalability was needed. However, various types of noises in the communication channels cause damages in the transmitted information especially speech data. Tonal-language speech was also affected by this situation. Approach: Based on the high pitch delay resolution technique, the MPCELP speech codin...

Journal: :Sig. Proc.: Image Comm. 2000
Karlheinz Brandenburg Oliver Kunz Akihiko Sugiyama

MPEG-4 audio represents a new kind of audio coding standard. Unlike its predecessors, MPEG-1 and MPEG-2 high-quality audio coding, and unlike the speech coding standards which have been completed by the ITU-T, it describes not a single or small set of highly e$cient compression schemes but a complete toolbox to do everything from low bit-rate speech coding to high-quality audio coding or music ...

Journal: :Hearing research 2015
Travis White-Schwoch Evan C Davies Elaine C Thompson Kali Woodruff Carr Trent Nicol Ann R Bradlow Nina Kraus

Early childhood is a critical period of auditory learning, during which children are constantly mapping sounds to meaning. But this auditory learning rarely occurs in ideal listening conditions-children are forced to listen against a relentless din. This background noise degrades the neural coding of these critical sounds, in turn interfering with auditory learning. Despite the importance of ro...

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