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Smaart 7 target curves
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<blockquote data-quote="Arthur Skudra" data-source="post: 141844" data-attributes="member: 131"><p>Re: Smaart 7 target curves</p><p></p><p>It should be noted that the target curves in Smaart only work in Spectrum mode. You can create your own by simply modifying a captured spectrum measurement. Keep in mind that you want your mic levels (and target curves) to be properly calibrated to dB SPL.</p><p></p><p>Where I find target curves to be handy is in setting up cinema systems to the X-Curve, or to display NC rating contours to determine the noise floor of the room, or to properly optimize a noise masking system. Merlijn van Veen produced some interesting target curves that illustrate the effects of our hearing at different SPL levels (Fletcher Munson curves), you should check out his website.</p><p></p><p>If you want to do a target curve in a transfer function, simply capture a trace there, then edit it to your liking using the 0 dB line as your median. I've done stuff like doing a + and - transfer curve of varying tolerance for system commissioning reports, and superimposing the measured trace with upper and lower limits.</p><p></p><p>I should point out that you do not need to enter in all the data points for 48th octave resolution, unless you're really anal about entering data and have lots of time to burn. I often enter data in at 1/3 octave or 1 octave intervals, Smaart connects the dots in between.</p></blockquote><p></p>
[QUOTE="Arthur Skudra, post: 141844, member: 131"] Re: Smaart 7 target curves It should be noted that the target curves in Smaart only work in Spectrum mode. You can create your own by simply modifying a captured spectrum measurement. Keep in mind that you want your mic levels (and target curves) to be properly calibrated to dB SPL. Where I find target curves to be handy is in setting up cinema systems to the X-Curve, or to display NC rating contours to determine the noise floor of the room, or to properly optimize a noise masking system. Merlijn van Veen produced some interesting target curves that illustrate the effects of our hearing at different SPL levels (Fletcher Munson curves), you should check out his website. If you want to do a target curve in a transfer function, simply capture a trace there, then edit it to your liking using the 0 dB line as your median. I've done stuff like doing a + and - transfer curve of varying tolerance for system commissioning reports, and superimposing the measured trace with upper and lower limits. I should point out that you do not need to enter in all the data points for 48th octave resolution, unless you're really anal about entering data and have lots of time to burn. I often enter data in at 1/3 octave or 1 octave intervals, Smaart connects the dots in between. [/QUOTE]
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