A low-bit-rate speech codec using multiband excitation and LPC modeling of harmonic magnitudes for private mobile radio

2004 ◽  
Vol 88 (1) ◽  
pp. 40-50
Author(s):  
Teruo Fumoto ◽  
Seishi Sasaki ◽  
Koji Kondo
Keyword(s):  
Mobile Radio ◽  
Bit Rate ◽  
Low Bit Rate ◽  
Speech Codec ◽  
Multiband Excitation ◽  
Private Mobile Radio

Advanced Information Hiding for G.711 Telephone Speech

2013 ◽  
pp. 129-163 ◽  
Author(s):  
Akinori Ito ◽  
Yôiti Suzuki
Keyword(s):  
Data Hiding ◽  
Side Information ◽  
Low Complexity ◽  
Speech Quality ◽  
Rate Data ◽  
Bit Rate ◽  
Bandwidth Extension ◽  
Low Bit Rate ◽  
Speech Codec ◽  
Popular Speech

G.711 is the most popular speech codec for Voice over IP (VoIP). This chapter proposes a method for embedding data into G.711-coded speech for conveying side information for enhancing speech quality such as bandwidth extension or packet loss concealment. The proposed method refers to a low-bit rate encoder to determine how many bits are embedded into each sample. First, a variable-bit rate data hiding method is proposed as a basic framework of the proposed method. Then, the proposed method is extended to achieve fixed bit rate data hiding. According to comparison experiments, the proposed method is proved to achieve higher speech quality compared with the conventional method. Moreover, the authors developed a low-complexity speech bandwidth extension method that uses the proposed data hiding method.

scholarly journals Universal steganography model for low bit-rate speech codec

2015 ◽  
Vol 9 (8) ◽  
pp. 747-754 ◽  
Author(s):  
Shanyu Tang ◽  
Qing Chen ◽  
Wei Zhang ◽  
Yongfeng Huang
Keyword(s):  
Bit Rate ◽  
Low Bit Rate ◽  
Speech Codec

scholarly journals Steganography Integration Into a Low-Bit Rate Speech Codec

2012 ◽  
Vol 7 (6) ◽  
pp. 1865-1875 ◽  
Author(s):  
Yongfeng Huang ◽  
Chenghao Liu ◽  
Shanyu Tang ◽  
Sen Bai
Keyword(s):  
Bit Rate ◽  
Low Bit Rate ◽  
Speech Codec

scholarly journals Low Bit-Rate Speech Codec Based on a Long-Term Harmonic Plus Noise Model

2016 ◽  
Vol 64 (11) ◽  
pp. 844-857 ◽  
Author(s):  
Faten Ben Ali ◽  
Sonia Djaziri-Larbi ◽  
Laurent Girin
Keyword(s):  
Noise Model ◽  
Bit Rate ◽  
Low Bit Rate ◽  
Speech Codec

Detection of QIM Steganography in Low Bit-Rate Speech Codec Based on Statistical Models and SVM

2014 ◽  
Vol 36 (6) ◽  
pp. 1168-1176 ◽  
Author(s):  
Song-Bin LI ◽  
Yong-Feng HUANG ◽  
Ji-Cang LU
Keyword(s):  
Statistical Models ◽  
Bit Rate ◽  
Low Bit Rate ◽  
Speech Codec
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