Sökning: "Fundamental frequency"

Visar resultat 11 - 15 av 346 avhandlingar innehållade orden Fundamental frequency.

1. 11. Computer methods for voice analysis

   Författare :Svante Granqvist; KTH; []
   Nyckelord :voice analysis; perceptual analysis; fundamental frequency; correlogram; aperiodicity; Fourier analysis; high-speed imaging; laryngoscopy; vocal fold vibration; voice accumulation.; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : This thesis consists of five articles and a summary. Thethesis deals with methods for measuring properties of thevoice. The methods are all computer-based, but utilisedifferent approaches for measuring different aspects of thevoice. Paper I introduces the Visual Sort and Rate (VSR) method forperceptual rating of voice quality. LÄS MER

3. 12. The Voice Source in Speech Communication - Production and Perception Experiments Involving Inverse Filtering and Synthesis

   Författare :Christer Gobl; KTH; []
   Nyckelord :Voice source dynamics; glottal source parameters; source-filter interaction; voice quality; phonation; perception; affect; emotion; mood; attitude; paralinguistic; inverse filtering; knowledge-based; formant synthesis; LF model; fundamental frequency;

   Sammanfattning : This thesis explores, through a number of production andperception studies, the nature of the voice source signal andhow it varies in spoken communication. Research is alsopresented that deals with the techniques and methodologies foranalysing and synthesising the voice source. LÄS MER

4. 13. Professionally Speaking - The prosodic and discourse structure of professional monologue in English

   Författare :Bryan D C Mosey; Engelska; []
   Nyckelord :HUMANIORA; HUMANITIES; paragraph; paratone; referential continuities; theme; discourse topic; fundamental frequency; finality; nucleus; accent; pause; speech-rate; tone-unit; discourse analysis; intonation; prosody; monologue; speech; spoken English; corpus; neural network; English language and literature; Engelska språk och litteratur ;

   Sammanfattning : This thesis combines corpus-based, experimental and instrumental methods to investigate how professional speakers of English use prosody to signal important textual boundaries above the sentence level. In an initial study, prosodic features included in the transcriptions of the Spoken English Corpus, or readily derivable from these, are investigated. LÄS MER

5. 14. Signal Characterization of Atrial Arrhythmias using the Surface ECG

   Författare :Martin Stridh; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal processing; Atrial fibrillation; Atrial arrhythmias; Frequency estimation; Time-frequency analysis; QRST cancellation; ECG;

   Sammanfattning : This doctoral thesis is comprised of five parts which deal with different signal processing problems in ECG-based characterization of atrial arrhythmias. Such characterization requires that the ventricular activity has first been cancelled in the ECG. LÄS MER

7. 15. MMIC-based Low Phase Noise Millimetre-wave Signal Source Design

   Författare :Thi Ngoc Do Thanh; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; millimetre-wave; MMIC; low frequency noise; phase noise; GaN HEMT; signal source; D-band; InP DHBT; deposition method.; SiGe BiCMOS; frequency multiplier; VCO; passivation;

   Sammanfattning : Wireless technology for future communication systems has been continuously evolving to meet society’s increasing demand on network capacity. The millimetre-wave frequency band has a large amount of bandwidth available, which is a key factor in enabling the capability of carrying higher data rates. LÄS MER