Title :
Measurement and Analysis of Just Noticeable Difference of Interaural Level Difference Cue
Author :
Tu Weiping ; Hu Ruimin ; Wang Heng ; Chen Wenqin
Author_Institution :
Nat. Eng. Res. Center for Multimedia Software, Wuhan Univ., Wuhan, China
Abstract :
Just Noticeable Difference (JND) of interaural level difference (ILD) are measured in 30 subjects with nomal hearing. Single-frequency sine tones with the frequency of 200, 500, 1000, 2000, 5000, 8000 or 12000Hz are used in the subjective listening test. The reference ILDs are 0, 3, 6, 9, 12 and 22dB, indicating 6 directions of sound sources from midline to the direction of the right ear. The results show that direction of the sound source has notable effects on JNDs of ILD. At high frequency, JNDs increase dramatically with source frequency.
Keywords :
audio coding; data compression; hearing; quantisation (signal); frequency 1000 Hz; frequency 12000 Hz; frequency 200 Hz; frequency 2000 Hz; frequency 500 Hz; frequency 5000 Hz; frequency 8000 Hz; interaural level difference cue; just noticeable difference; nomal hearing; single-frequency sine tones; sound sources; Audio coding; Auditory system; Ear; Humans; Quantization; System-on-a-chip; Transform coding;
Conference_Titel :
Multimedia Technology (ICMT), 2010 International Conference on
Conference_Location :
Ningbo
Print_ISBN :
978-1-4244-7871-2
DOI :
10.1109/ICMULT.2010.5630980