Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Nobuhiko Kitawaki"'
Publikováno v:
EURASIP Journal on Audio, Speech, and Music Processing, Vol 2010 (2010)
Externí odkaz:
https://doaj.org/article/2a3b4564825c450390f60362237b0d59
Publikováno v:
Acoustical Science and Technology. 37:286-294
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9e909219cd23a1573d53d8ad5ebe00b
https://doi.org/10.1250/ast.37.286
https://doi.org/10.1250/ast.37.286
Publikováno v:
IEICE Transactions on Communications. :1367-1372
This paper describes non-reference objective quality evaluation for noise-reduced speech. First, a subjective test is conducted in accordance with ITU-T Rec. P.835 to obtain the speech quality, the noise quality, and the overall quality of noise-redu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::797cdd3c5d705e35bce9cad895318aba
https://doi.org/10.1587/transcom.e93.b.1367
https://doi.org/10.1587/transcom.e93.b.1367
Publikováno v:
IEEE Transactions on Audio, Speech and Language Processing. 14:2006-2013
It is essential to ensure quality of service (QoS) when offering a speech recognition service for use in noisy environments. This means that the recognition performance in the target noise environment must be investigated. One approach is to estimate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7065eb9876b82c0e1bfaa3bc494c0644
https://doi.org/10.1109/tasl.2006.883254
https://doi.org/10.1109/tasl.2006.883254
Publikováno v:
IEEE Transactions on Audio, Speech and Language Processing. 14:1969-1976
A new method is described for quantifying the quality degradation introduced by wide-band speech codecs via a one-dimensional impairment factor. The method is based on auditory listening-only tests, but the resulting impairment factors may be used fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f6bcff9dff6bd84159aa067feadebce
https://doi.org/10.1109/tasl.2006.883262
https://doi.org/10.1109/tasl.2006.883262
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :2158-2165
In this paper, a method of detecting overlapping speech segments in meetings is proposed. It is known that the eigenvalue distribution of the spatial correlation matrix calculated from a multiple microphone input reflects information on the number an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::448a266a55a23f32c3ff231df04858b4
https://doi.org/10.1093/ietfec/e89-a.8.2158
https://doi.org/10.1093/ietfec/e89-a.8.2158
Autor:
Nobuhiko Kitawaki
Publikováno v:
IEICE Transactions on Communications. :262-272
This paper describes the author's perspective on multimedia quality prediction methodologies for multimedia communications in advanced mobile and internet protocol (IP)-based telephony, and reports related experiments and trials. First, the paper des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a118e6a91ed579400e6121f1b544d443
https://doi.org/10.1093/ietcom/e89-b.2.262
https://doi.org/10.1093/ietcom/e89-b.2.262
Publikováno v:
IEICE Transactions on Communications. :1111-1118
Recently, wideband speech communication using 7 kHz-wideband speech coding, as described in ITU-T Recommendations G.722, G.722.1, and G.722.2, has become increasingly necessary for use in advanced IP telephony using PCs, since, for this application,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c42f39f223dbfc32a8e8434405c5959
https://doi.org/10.1093/ietcom/e88-b.3.1111
https://doi.org/10.1093/ietcom/e88-b.3.1111
Publikováno v:
IEEE Communications Magazine. 42:28-34
Since quality is not generally guaranteed in an IP network, the proper design and management of networks and/or terminals for high-quality voice over IP services and maintenance of service levels is important. In terms of quality design and managemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89d0ab5e7b22fb994a6b59ce2296ea20
https://doi.org/10.1109/mcom.2004.1316526
https://doi.org/10.1109/mcom.2004.1316526
Publikováno v:
IEEE Transactions on Speech and Audio Processing. 11:204-215
Two array signal processing techniques are combined with independent component analysis (ICA) to enhance the performance of blind separation of acoustic signals in a reflective environment. The first technique is the subspace method which reduces the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35280b1d9f3658c0442545c627e3dab0
https://doi.org/10.1109/tsa.2003.809191
https://doi.org/10.1109/tsa.2003.809191