论文信息 - Audio Data Hiding with High Data Rates Based on Intmdct

Audio Data Hiding with High Data Rates Based on Intmdct

This paper describes high data-rate audio data hiding using the IntMDCT. The IntMDCT is an integer approximation of the MDCT with perfect reconstruction. Based on this transform, we describe a straight-forward way to embed data and extract it in a bit-exact manner while perceptual transparency is maintained. Since the IntMDCT spectrum can be used to obtain a closer approximation of the masking threshold compared to time domain approaches, it is possible to achieve higher data rates. In a simple experimental implementation, we found we could embed data at rates up to about 140 kb/s without introducing audible distortions

Gerald Schuller | Ralf Geiger | Yoshikazu Yokotani

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