Sökning: "Speech Quality"

Visar resultat 16 - 20 av 116 avhandlingar innehållade orden Speech Quality.

1. 16. Coding Speech for Packet Networks

   Författare :Jonas Lindblom; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; packet loss concealment; voice over IP; speech coding; harmonic modeling; vector quantization; sinusoidal modeling; Gaussian mixture modeling; bounded support; frame erasure; variable dimension;

   Sammanfattning : The topic of this thesis is speech coding for packet networks. Problems related to the use of packet networks for voice communication are addressed. Real-time voice communication is for example very delay sensitive; if the total end-to-end delay in a telephone session grows large, it is perceived as annoying. LÄS MER

3. 17. Forensic comparison of voices, speech and speakers : tools and methods in forensic phonetics

   Författare :Jonas Lindh; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; forensic phonetics; automatic voice recognition; disputed utterance; speech; language technology; phonetics;

   Sammanfattning : This thesis has three main objectives. The first objective (A) includes Study I, which investigates the parameter fundamental frequency (F0) and its robustness in different acoustic contexts by using different measures. LÄS MER

4. 18. Mapping Individual Voice Quality over the Voice Range : The Measurement Paradigm of the Voice Range Profile

   Författare :Peter Pabon; Sten Ternström; Maria Södersten; Ingo Titze; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Voice Range Profile VRP ; Phonetogram; Voice Field; Voice quality; Singing voice; Voice synthesis; Clinical voice assessment; Sound level measurement; Maximum Entropy; Tal- och musikkommunikation; Speech and Music Communication;

   Sammanfattning : The acoustic signal of voiced sounds has two primary attributes: fundamental frequency and sound level. It has also very many secondary attributes, or ‘voice qualities’, that can be derived from the acoustic signal, in particular from its periodicity and its spectrum. LÄS MER

5. 19. Applied Speech Enhancement for Personal Communication

   Författare :Nils Westerlund; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Speech Enhancement; Active Noise Control;

   Sammanfattning : In our daily life noise is almost constantly present. At the same time our need to communicate reliably has probably never been this great. Surrounding noise impairs our ability to communicate by speech and causes the users of a speech communication system to strain both their hearing and their voices. LÄS MER

7. 20. Tala fram texten : När barn med läs- och skrivsvårigheter skriver med tal-till-text

   Författare :Sanna Kraft; Åsa Wengelin; Karin Helgesson; Gustaf B. Skar; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; language; spoken language; reading and writing difficulties; writing processes; writing strategies; keystroke logging; writing tools; assistive technology; speech-to-text; speech recognition; dictation; lexical analysis; revision; text quality; expository texts; Swedish; Svenska språket Nordiska språk; written language; spoken language; reading and writing difficulties; writing processes; writing strategies; keystroke logging; writing tools; assistive technology; speech-to-text; speech recognition; dictation; lexical analysis; revision; text quality; expository text;

   Sammanfattning : Effective writing is a crucial skill that requires not only the mastery of various sub-processes but also deliberate orchestration of those sub-processes within the constraints of limited working- memory capacity. In practice, some of those sub-processes, such as transcription (spelling and handwriting), need to be automatised to free up capacity for other processes. LÄS MER