Filtry
Transferring of Coded Speech Signals
There is a growing number of systems allowing the transferring of speech signals through backbone networks in the packet form. The article is focused on a signal treatment and its influence in a quality of a signal...
JA - Elektronika a optoelektronika, elektrotechnika
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Security module of speech signal authentication
It is the hardware security module containing digital signal processor with implemented program for transmitted speech signal authentication. The e program is based on idea of authentication channel existence in base-band <...
JA - Elektronika a optoelektronika, elektrotechnika
- 2009 •
- Gprot
Rok uplatnění
Gprot - Prototyp
Classification of Transmission Channels by Speech Signal Processing
The paper deals with the classification of five different transmission channels by applying speech signal processing techniques. The channels considered are: GSM, two PSTN channels and two VoIP channels. For training and te...
JA - Elektronika a optoelektronika, elektrotechnika
- 2013 •
- D
Rok uplatnění
D - Stať ve sborníku
Effect of the Directional Characteristics of the Microphone Pair MD441 on the Measurement of the Speech Transmission Index STIPA and Comprehensibility CIS
that variation the level of speech signals carry important information relating to speech intelligibility. Modulation of speech arises from acoustic separation of words, sentences and phonemes, which are the basic...
BI - Akustika a kmity
- 2015 •
- D •
- Odkaz
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Intrusive Speech Transmission Quality Measurements for Low Bit-Rate Coded Audio Signals
The article describes an algorithm allowing intrusive speech transmission quality measurements in networks with low bit-rate coding schemes (600-2400 bits/second) as used in satellite and military communications....
JC - Počítačový hardware a software
- 2003 •
- A
Rok uplatnění
A - Audiovizuální tvorba
Analysis of Speech Signals in VoIP Transferred Over a Network Channel
through the transmission channel. Subsequently a database of speech recordingsThe article examines the impact of VoIP transmission channel characteristics on speech parameters. It seeks ways of emulating propertie...
JA - Elektronika a optoelektronika, elektrotechnika
- 2016 •
- D •
- Odkaz
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Assesment of VoIP Systems through E-model Extension
The first part of this paper is focused to the methodology for objective quantification of the quality of transmission through the impairment factors closely associated with the utilization of wideband speech codecs in telecommunica...
JA - Elektronika a optoelektronika, elektrotechnika
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
Technology of Speech Communication
The book brings complex information about digital processing of human speech in the fields of transmission, synthesis, and coding. It should serve as studying material for the subject Digital processing of speech signal...
JA - Elektronika a optoelektronika, elektrotechnika
- 2007 •
- B
Rok uplatnění
B - Odborná kniha
Computationally Efficient Non-Intrusive Algorithm for Speech Transmission Quality Measurement
A new, wavelet-based, non-intrusive method for speech transmission quality measurements is described in the abstract. It models human perception of quality of transmitted speech signal. The deployed Discrete Wavele...
JA - Elektronika a optoelektronika, elektrotechnika
- 2006 •
- A
Rok uplatnění
A - Audiovizuální tvorba
Effect of the Directional Characteristic of the Waves Sensor ME36 on the Measurement of the Speech Transmission Index STIPA and Comprehensibility CIS
research results show that measurement of the speech transmission index Stipe can not agree with logatomickými tests for evaluating the transmission propertiesThe acoustic transmission channel has a unique place i...
BI - Akustika a kmity
- 2015 •
- D •
- Odkaz
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
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