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K. Kondo, "A Data Hiding Method for Stereo Audio Signals Using Interchannel Decorrelator Polarity Inversion," J. Audio Eng. Soc., vol. 59, no. 6, pp. 379-395, (2011 June.). doi: K. Kondo, "A Data Hiding Method for Stereo Audio Signals Using Interchannel Decorrelator Polarity Inversion," J. Audio Eng. Soc., vol. 59 Issue 6 pp. 379-395, (2011 June.). doi:
Abstract: Hiding inaudible data in an audio signal (watermarking), which can be useful for transmitting metadata and inserting copyright identification, is based on taking advantage of the complexity of human perception. In the proposed approach, data is embedded using the polarity of reverberation (echoes) that is added to the high frequencies. A detector uses the sum and difference of the high frequencies in the two channels to extract the data. Average data rates of 22 bps were achieved. The approach was robust with additive noise at 30 dB SNR. In addition MP3, AAC encoding, sample-rate conversion, pitch shifting, and frame misalignment did not destroy the information.

@article{kondo2011a,
author={kondo, kazuhiro},
journal={journal of the audio engineering society},
title={a data hiding method for stereo audio signals using interchannel decorrelator polarity inversion},
year={2011},
volume={59},
number={6},
pages={379-395},
doi={},
month={june},} @article{kondo2011a,
author={kondo, kazuhiro},
journal={journal of the audio engineering society},
title={a data hiding method for stereo audio signals using interchannel decorrelator polarity inversion},
year={2011},
volume={59},
number={6},
pages={379-395},
doi={},
month={june},
abstract={hiding inaudible data in an audio signal (watermarking), which can be useful for transmitting metadata and inserting copyright identification, is based on taking advantage of the complexity of human perception. in the proposed approach, data is embedded using the polarity of reverberation (echoes) that is added to the high frequencies. a detector uses the sum and difference of the high frequencies in the two channels to extract the data. average data rates of 22 bps were achieved. the approach was robust with additive noise at 30 db snr. in addition mp3, aac encoding, sample-rate conversion, pitch shifting, and frame misalignment did not destroy the information.},}

TY - paper
TI - A Data Hiding Method for Stereo Audio Signals Using Interchannel Decorrelator Polarity Inversion
SP - 379 EP - 395
AU - Kondo, Kazuhiro
PY - 2011
JO - Journal of the Audio Engineering Society
IS - 6
VO - 59
VL - 59
Y1 - June 2011 TY - paper
TI - A Data Hiding Method for Stereo Audio Signals Using Interchannel Decorrelator Polarity Inversion
SP - 379 EP - 395
AU - Kondo, Kazuhiro
PY - 2011
JO - Journal of the Audio Engineering Society
IS - 6
VO - 59
VL - 59
Y1 - June 2011
AB - Hiding inaudible data in an audio signal (watermarking), which can be useful for transmitting metadata and inserting copyright identification, is based on taking advantage of the complexity of human perception. In the proposed approach, data is embedded using the polarity of reverberation (echoes) that is added to the high frequencies. A detector uses the sum and difference of the high frequencies in the two channels to extract the data. Average data rates of 22 bps were achieved. The approach was robust with additive noise at 30 dB SNR. In addition MP3, AAC encoding, sample-rate conversion, pitch shifting, and frame misalignment did not destroy the information.