AES E-Library

Physiological and Content Considerations for a Second Low Frequency Channel for Bass Management, Subwoofers, and LFE

By convention, frequencies below 90Hz produce no interaural cues useful for spatial sound or localization. Yet some claim they are able to hear a difference between a single subwoofer channel (whether or not to more than one subwoofer) and two (“stereo bass”). Reported research supports the Jeffress model of interaural time difference (ITD) determination in brain structures, and extending the accepted lower frequency limit of interaural phase difference (IPD). Meanwhile, uncorrelated very low frequencies (VLF<100Hz) exist in nearly all existing multi-channel music and movie content. The audibility, recording, and reproduction of uncorrelated VLF are explored in theory and experiments.

Author: Miller III, Robert (Robin)
Affiliation: Robin Miller, Filmaker Inc
AES Convention:119 (October 2005) Paper Number:6628 Import into BibTeX
Subject:Psychoacoustics, Perception, Listening Tests

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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 119Papers)   /119/6628.pdf

Start a discussion about this paper!