Frequency Analysis Software - BZ 7223
Frequency Analysis Software BZ 7223 is an optional software module. It allows you to make real-time measurements in 1/1- and 1/3-octave bands over a wide frequency range. This makes it a simple matter to obtain spectra in order to, for example, select hearing protection, qualify heat and ventilation systems, and assess tonality.
The following frequency ranges are available:
In each band you have a full and unrivalled dynamic range from the noise floor in that particular band to 140 dB. That is, a dynamic range generally in excess of 135 dB.
Spectra can be A-, C- or Z-weighted. Five spectra are measured and stored and, in addition, instantaneous values are available for display. Two spectra, for example, a minimum and maximum spectrum, can be superimposed on the display. As a matter of course, all the broadband quantities measured by Sound Level Meter Software BZ 7222 are computed in parallel with the frequency analysis. Spectral analyses can be documented using notes and voice annotations.
If Sound Recording Option BZ 7226 is also enabled, you can record all or part of the investigated signal. This recording is safely stored with the measurement, allowing you to produce convincing documentation that the high levels in the 4 kHz band, are in fact related to a hiss from a particular piece of machinery.
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