Presentation 2015-09-11
Analysis of Watermarking into CELP Speech Codec Based on Formant Tuning
Erick Christian Garcia Alvarez, Shengbei Wang, Masashi Unoki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Unifying the code-excited linear prediction (CELP) codec process with the watermarking based on formant tuning method provides inaudibility and robustness. The serial problem of watermarking and then encoding by CELP codec is thereby reduced by the proposed method which also increased the bit detection rate. We took advantage of each key properties of formant tuning method and CELP encoding process: (1) humans do not perceive alterations applied to formants; (2) CELP codec provides excellent quality speech at low bit rates by using the source-filter model and (3) CELP and watermarking based on formant tuning methods utilize lineal prediction coefficients for its process. Results revealed that the proposed method increased the detection rate and could satisfied inaudibility.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) CELP codec / speech watermarking / formant tunning / inaudibility / robustness
Paper # LOIS2015-22,IE2015-54,EMM2015-37
Date of Issue 2015-09-03 (LOIS, IE, EMM)

Conference Information
Committee LOIS / IE / EMM / IEE-CMN / ITE-ME
Conference Date 2015/9/10(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Nagoya University, Higashiyama Campus
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Manabu Okamoto(NTT) / Seishi Takamura(NTT) / Akinori Ito(Tohoku Univ.) / Yoshimi Fukumura(Nagaoka Univ. of Tech.) / Kazuhito Murakami(愛知県立大)
Vice Chair Hiroyuki Nishi(Sojo Univ.) / Takayuki Hamamoto(Tokyo Univ. of Science) / Atsuro Ichigaya(NHK) / Masashi Unoki(JAIST) / Masaki Kawamura(Yamaguchi Univ.) / / Miki Haseyama(北海道大学)
Secretary Hiroyuki Nishi(Tsuda College) / Takayuki Hamamoto(NTT) / Atsuro Ichigaya(NTT) / Masashi Unoki(KDDI R&D Labs.) / Masaki Kawamura(Univ. of Electro-Comm.) / (Nagasaki Univ.) / Miki Haseyama(CRIEPI)
Assistant Yu Ichifuji(NII) / Takamichi Miyata(Chiba Inst. of Tech.) / Keita Takahashi(Nagoya Univ.) / Motoi Iwata(Osaka Pref. Univ.) / Kazuhiro Kohno(Kansai Univ.) / Keisuke Utsu(Tokai Univ.) / Takeshi Yagi(NTT) / Kei Kawamura(KDDI研) / Jun Shimamura(NTT)

Paper Information
Registration To Technical Committee on Life Intelligence and Office Information Systems / Technical Committee on Image Engineering / Technical Committee on Enriched MultiMedia / Technical Meeting on Communications / Technical Group on Media Engineering
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Analysis of Watermarking into CELP Speech Codec Based on Formant Tuning
Sub Title (in English)
Keyword(1) CELP codec
Keyword(2) speech watermarking
Keyword(3) formant tunning
Keyword(4) inaudibility
Keyword(5) robustness
1st Author's Name Erick Christian Garcia Alvarez
1st Author's Affiliation Japan Advanced Institute of Science and Technology(JAIST)
2nd Author's Name Shengbei Wang
2nd Author's Affiliation Japan Advanced Institute of Science and Technology(JAIST)
3rd Author's Name Masashi Unoki
3rd Author's Affiliation Japan Advanced Institute of Science and Technology(JAIST)
Date 2015-09-11
Paper # LOIS2015-22,IE2015-54,EMM2015-37
Volume (vol) vol.115
Number (no) LOIS-219,IE-220,EMM-221
Page pp.pp.39-44(LOIS), pp.39-44(IE), pp.39-44(EMM),
#Pages 6
Date of Issue 2015-09-03 (LOIS, IE, EMM)