ISO 226 Equal-Loudness-Level Contour Signal 1.0

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CreatedCreated : Sep 6, 2007
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This function will return a 29-point equal loudness ...

This function will return a 29-point equal loudness contour for your desired phon level. The freq evaluated in this function only span from 20Hz - 12. khz, and only 29 selective frequencies are covered. This is the limitation of the iso standard.
In addition the valid phon range should be 0 - 90 dB SPL. Values outside this range do not have experimental values and their contours should be treated as inaccurate. (Limitation due to standard)
If more samples are required you should be able to easily interpolate these values using spl().
*For more information regarding this method refer to ISO 226.
Usage: [SPL FREQ] = ISO226(PHON);
PHON is the phon value in dB SPL that you want the equal loudness curve to represent. (1phon = 1dB @ 1kHz) SPL is the Sound Pressure Level amplitude returned for each of the 29 frequencies evaluated by ISO226. FREQ is the returned vector of frequencies that ISO226 evaluates to generate the contour.

ISO 226 Equal-Loudness-Level Contour Signal 1.0 scripting tags: khz, equal, contour signal, iso, equal loudness level, freq, signal processing, frequencies, phon, spl. What is new in ISO 226 Equal-Loudness-Level Contour Signal 1.0 software script? - Unable to find ISO 226 Equal-Loudness-Level Contour Signal 1.0 news. What is improvements are expecting? Newly-made ISO 226 Equal-Loudness-Level Contour Signal 1.1 will be downloaded from here. You may download directly. Please write the reviews of the ISO 226 Equal-Loudness-Level Contour Signal. License limitations are unspecified.