Projekter pr. år
Abstract
Psychophysical tuning curves (PTCs) were measured for sinusoidal signals with frequency fs = 31.5, 40, 50, 63, and 80 Hz, using sinusoidal and narrowband-noise maskers. For the former, conditions were included where a pair of beating tones was added to reduce the use of cues related to beats. Estimates of each subject’s middle-ear transfer function (METF) were obtained from equal-loudness contours measured from 20 to 160 Hz. With decreasing fs, the PTCs became progressively broadened and markedly asymmetrical, with shallow upper skirts and steep lower skirts. For the sinusoidal maskers, the tips were more irregular than for narrowband-noise maskers or when beating tones were added. For fs = 31.5 and 40 Hz, the tips of the PTCs always fell above fs. Allowing for the METF so as to infer underlying filter shapes resulted in flatter lower skirts, especially below 40 Hz, and reduced the frequency at the tips for fs between 31.5 and 50 Hz; however, the tips did not fall below 40 to 50 Hz. The bandwidths of the PTCs increased with decreasing fs below 80 Hz. However, bandwidths remained roughly constant if the METF was included as part of auditory filtering for frequencies below 40 Hz.
Originalsprog | Engelsk |
---|---|
Tidsskrift | The Journal of the Acoustical Society of America |
Vol/bind | 129 |
Udgave nummer | 5 |
Sider (fra-til) | 3166-3180 |
Antal sider | 15 |
ISSN | 0001-4966 |
DOI | |
Status | Udgivet - maj 2011 |
Fingeraftryk
Dyk ned i forskningsemnerne om 'Psychophysical tuning curves for frequences below 100 Hz'. Sammen danner de et unikt fingeraftryk.Projekter
- 2 Afsluttet
-
Auditory tuning estimater og hørestyrkerkurver ved lave frekvenser
Orellana, C. A. J. (Projektdeltager), Pedersen, C. S. (Projektdeltager), Møller, H. (Projektdeltager) & Moore, B. (Projektdeltager)
01/01/2009 → 31/12/2010
Projekter: Projekt › Forskning
-
Bestemmelse af de kritiske band/auditory filtre ved lave frekvenser
Orellana, C. A. J. (Projektdeltager), Pedersen, C. S. (Projektdeltager) & Møller, H. (Projektdeltager)
01/09/2007 → 01/10/2010
Projekter: Projekt › Forskning