This study examined the changes in auditory spatial impression associated with changes in signal incoherence within the low-frequency portion of a multichannel loudspeaker reproduction. Multichannel recordings were made in reverberant concert settings of single notes played on musical instruments with significant low-frequency energy. A signal processing method was then developed to manipulate low-frequency correlation in the pre-recorded material while maintaining high sound quality; subsequent listening tests measured the perceptual effects of varying low frequency correlation on otherwise identical recordings of low-pitch, single-note performances on musical instruments such as the bass violin. For cutoff frequencies ranging from 200 Hz down to 63 Hz, the effects of cutoff frequency on discrimination thresholds were measured for changes in low-frequency correlation using a two-alternative forced-choice task. Listeners also made forced-choice identifications regarding auditory source focus. Results indicated that both discrimination and identification performance was degraded in the presence of the higher-frequency portion of the musical stimuli.
https://www.aes.org/e-lib/browse.cfm?elib=13373
Click to purchase paper as a non-member 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 and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
Start a discussion about this paper!
