iso226: iso226
In soundgen: Sound Synthesis and Acoustic Analysis
View source: R/loudness_utilities.R
iso226 R Documentation
iso226
Description
Internal soundgen function
Usage
iso226(phon, nBarks = 22)
Arguments
phon
the phon value in dB SPL represented by the loudness curve
Details
Calculates equal loudness curves according to the ISO226 standard. Expected
range of input values in phon is 0 to 90 (1 phon is 1 dB at 1 kHz). The range
of evaluated frequencies is 20 to 12500 Hz, with a total of 29 values (so
upsample if more resolution is needed, but not that beyond 22 barks it's just
assumed to be flat). Translated from the matlab implementation by Jeff Tackett
(03/01/05) available from
"https://www.mathworks.com/matlabcentral/fileexchange/
7028-iso-226-equal-loudness-level-contour-signal"
Value
A dataframe containing evaluated frequencies and SPL values
Examples
i = soundgen:::iso226(40)
plot(i$curve29, type = 'l')
plot(i$curveBark$freq_Hz, i$curveBark$spl, type = 'l')
soundgen documentation built on Sept. 12, 2024, 6:29 a.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
View source: R/loudness_utilities.R
| iso226 | R Documentation |
iso226
Description
Internal soundgen function
Usage
iso226(phon, nBarks = 22)
Arguments
phon |
the phon value in dB SPL represented by the loudness curve |
Details
Calculates equal loudness curves according to the ISO226 standard. Expected range of input values in phon is 0 to 90 (1 phon is 1 dB at 1 kHz). The range of evaluated frequencies is 20 to 12500 Hz, with a total of 29 values (so upsample if more resolution is needed, but not that beyond 22 barks it's just assumed to be flat). Translated from the matlab implementation by Jeff Tackett (03/01/05) available from "https://www.mathworks.com/matlabcentral/fileexchange/ 7028-iso-226-equal-loudness-level-contour-signal"
Value
A dataframe containing evaluated frequencies and SPL values
Examples
i = soundgen:::iso226(40)
plot(i$curve29, type = 'l')
plot(i$curveBark$freq_Hz, i$curveBark$spl, type = 'l')
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.