Speech and Audio Signal Processing (SASP) 2020 /CourseID:1053

Detailed information

Most recent entry on 2020-06-28 

Organisational Unit

Lehrstuhl für Multimediakommunikation und Signalverarbeitung

Recording type

Vorlesungsreihe

Language

English

The course concentrates on algorithms for speech and audio signal processing with applications in telecommunications and multimedia, especially

  • physiology and models for human speech production and hearing: source-filter model, filterbank model of the cochlea, masking effects,

  • representation of speech and audio signals: estimation and representation of short-term and long-term statistics in the time and frequency domain as well as the cepstral domain; typical examples and visualizations

  • source coding for speech and audio signals: criteria, scalar and vector quantization, linear prediction, prediction of the pitch frequency; waveform coding, parametric coding, hybrid coding, codec standards (ITU, GSM, ISO-MPEG)

  • basic concepts of automatic speech recognition (ASR): feature extraction, dynamic time warping, Hidden Markov Models (HMMs)

  • basic concepts of speech synthesis: text-to-speech systems, model-based and data-driven synthesis, PSOLA synthesis system

  • signal enhancement for acquisition and reproduction: noise reduction, acoustic echo cancellation, dereverberation using single-channel and multichannel algorithms.

Die Vorlesung behandelt Grundlagen und Algorithmen der Verarbeitung von Sprach- und Audiosignalen mit Anwendungen in Telekommunikation und Multimedia, insbesondere:

  • Physiologie und Modelle der Spracherzeugung und des Hrens: Quelle-Filter-Modell, Filterbank-Modell der Cochlea; Maskierungseffekte;

  • Darstellung von Sprach- und Audiosignalen: Schtzung und Darstellung der Kurzzeit- und Langzeitstatistik in Zeit-, Frequenz- und Cepstralbereich; typische Beispiele, Visualisierungen;

  • Quellencodierung fr Sprache und Audiosignale: Kriterien; skalare und vektorielle Codierung; lineare Prdiktion; Pitchprdiktion; Wellenform-/Parameter-/Hybrid-Codierung; Standards (ITU, GSM, ISO-MPEG)

  • Spracherkennung: Merkmalextraktion, Dynamic Time Warping, Hidden Markov Models

  • Grundprinzipien der Sprachsynthese: Text-to-Speech Systeme, modellbasierte und datenbasierte Synthese, PSOLA-Synthese

  • Signalverbesserung bei Signalaufnahme und wiedergabe: Geruschbefreiung, Echokompensation, Enthallung mittels ein- und mehrkanaliger Verfahren;

Associated Clips

Episode
Title
Lecturer
Updated
Via
Duration
Media
1
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-04-17
Studon
01:35:08
2
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-04-20
Studon
01:31:28
3
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-04-24
Studon
01:31:12
4
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-04-27
Studon
01:35:00
5
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-04
Studon
01:35:49
6
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-03
Studon
01:39:33
7
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-10
Studon
01:31:19
8
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-11
Studon
01:31:10
9
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-15
Studon
01:32:58
10
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-15
Studon
01:43:44
11
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-24
Studon
01:31:16
12
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-05-25
Studon
01:38:13
13
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-01
Studon
01:30:46
14
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-01
Studon
01:32:05
15
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-07
Studon
01:40:25
16
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-08
Studon
01:32:28
17
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-14
Studon
01:40:08
18
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-15
Studon
01:19:10
19
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-22
Studon
01:34:52
20
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-22
Studon
01:52:18
21
Speech and Audio Signal Processing (SASP)
Prof. Dr. Walter Kellermann
2020-06-28
Studon
01:37:53

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