𝔖 Bobbio Scriptorium
✦   LIBER   ✦

THE LOUDNESS OF “COMPLEX NOISE” IN RELATION TO THE FACTORS EXTRACTED FROM THE AUTO-CORRELATION FUNCTION

✍ Scribed by S. SATO; T. KITAMURA; H. SAKAI; Y. ANDO

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
129 KB
Volume
241
Category
Article
ISSN
0022-460X

No coin nor oath required. For personal study only.

✦ Synopsis

The loudness of complex signals, which include bandpass noises with di!erent center frequencies (complex noise), is examined while changing the e!ective duration of the autocorrelation function ( C) based on a model of the human auditory}brain system for subjective response to a sound "eld. The center frequencies of each component of the complex noises were 2000 and 3000 Hz so that the perceived pitch was centered on 1000 Hz. The bandwidth of each component was changed by using a 2068 dB/octave sharp "lter to control the C of the source signal. The scale values for the loudness of the complex noises were obtained using a paired-comparison method. The results showed that the loudness increases with the C of the source signal similar to that of the single-noise component centered on 1000 Hz. The loudness of complex noises having equal sound pressure levels is not constant within the critical band, 160 Hz.

📜 SIMILAR VOLUMES

LOUDNESS OF SHARPLY (2068 dB/OCTAVE) FIL
LOUDNESS OF SHARPLY (2068 dB/OCTAVE) FILTERED NOISES IN RELATION TO THE FACTORS EXTRACTED FROM THE AUTOCORRELATION FUNCTION
✍ S. SATO; T. KITAMURA; Y. ANDO 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 107 KB

This study examines the loudness of bandpass noises with center frequencies of 250, 500 and 1000 Hz while changing the autocorrelation function (ACF). The bandwidth of the source signal was altered with a 2068 dB/octave sharp "lter to control the ACF of the source signal. The scale values of loudnes

DURATION SENSATION OF THE SIMULATED ENVI
DURATION SENSATION OF THE SIMULATED ENVIRONMENTAL NOISE IN RELATION TO ITS AUTO-CORRELATION FUNCTION
✍ K. SAIFUDDIN; H. SAKAI; Y. ANDO 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 161 KB

This is the report of an investigation into the sensation of the duration of environmental noise simulated by mixing a pure tone (1 kHz) with white noise. In paired-comparison tests "ve subjects judged whether simulated-environmental-noise stimuli were longer or shorter than a standard pure-tone sti

CUES FOR LOCALIZATION IN THE MEDIAN PLAN
CUES FOR LOCALIZATION IN THE MEDIAN PLANE AS EXTRACTED FROM THE AUTO-CORRELATION FUNCTION
✍ S. SATO; Y. ANDO; V. MELLERT 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 96 KB

This study evaluates using factors extracted from the autocorrelation function (ACF) as cues for sound localization of the median plane. The amplitude of the transfer function for sound incident from the median plane to the ear entrances measured (see reference [6]) is translated into the ACF. It is

PRELIMINARY STUDY ON RECOMMENDED TIME DU
PRELIMINARY STUDY ON RECOMMENDED TIME DURATION OF SOURCE SIGNALS TO BE ANALYZED, IN RELATION TO ITS EFFECTIVE DURATION OF THE AUTO-CORRELATION FUNCTION
✍ K. MOURI; K. AKIYAMA; Y. ANDO 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 163 KB

A workable model of human auditory}brain system including the auto-correlation function (ACF) and the interaural cross-correlation function (IACF) has been reported [1]. Subjective evaluations can be described by physical factors extracted from both the ACF of sound source and the IACF. The purpose

Extraction of overt verbal response from
Extraction of overt verbal response from the acoustic noise in a functional magnetic resonance imaging scan by use of segmented active noise cancellation
✍ Kwan-Jin Jung; Parikshit Prasad; Yulin Qin; John R. Anderson 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 620 KB

## Abstract A method to extract the subject's overt verbal response from the obscuring acoustic noise in an fMRI scan is developed by applying active noise cancellation with a conventional MRI microphone. Since the EPI scanning and its accompanying acoustic noise in fMRI are repetitive, the acousti