A Selection Model Based on Perceptual and Statistics Characteristic for Interaural Level Difference
In present mobile communication system, low bit rate audio signal is supposed to be provided with high quality. This paper researches the mechanism exists of perceptual and statistics redundancy in binaural cues and establishes a selection model by joint perceptual and statistics characteristic of ILD. It does not quantize the values of ILD where the frequency bands can’t easily be perceived by human ears according to the selection model. Experimental results showed that this method can bring down the parametric bitrate by about 15% compared with parametric stereo, while maintaining the subjective sound quality.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members, $5 for AES members and is free for E-Library subscribers.