Sökning: "Sound Signal Processing"
Visar resultat 1 - 5 av 63 avhandlingar innehållade orden Sound Signal Processing.
1. Multichannel Audio Signal Processing : Room Correction and Sound Perception
Sammanfattning : This thesis concerns and combines multichannel sound reproduction, digital room correction, audio signal processing, and human sound perception. It investigates perceived sound quality and new methods to improve timbral and spatial fidelity of loudspeaker-based multichannel sound reproduction in reverberant environments. LÄS MER
2. Signal processing applied to acoustic distance estimation and sound classification
Sammanfattning : The thesis treats some signal processing applications to retrieval of information from acoustic measurements. In the distance estimation applications (parts AI, A2, B and C) an acoustic signal propagates through a physical system and is modified according to some system parameter. LÄS MER
3. Sound Classification in Hearing Instruments
Sammanfattning : A variety of algorithms intended for the new generation of hearing aids is presented in this thesis. The main contribution of this work is the hidden Markov model (HMM) approach to classifying listening environments. This method is efficient and robust and well suited for hearing aid applications. LÄS MER
4. Speech Signal Extraction : A Multichannel Approach
Sammanfattning : In speech signal extraction the aim is to extract human speech in a physical environment by using microphones. In any real world environment there are many disturbance sources that cause unwanted sound pressure, which in turn may degrade the comprehension of the speech at the microphones. LÄS MER
5. Processing of the Phonocardiographic Signal : methods for the intelligent stethoscope
Sammanfattning : Phonocardiographic signals contain bioacoustic information reflecting the operation of the heart. Normally there are two heart sounds, and additional sounds indicate disease. If a third heart sound is present it could be a sign of heart failure whereas a murmur indicates defective valves or an orifice in the septal wall. LÄS MER