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Spectrum Analyzer

Written by Wendy Dunham.

spectrumanalyzer32
Download Spectrum Analyzer 32 band:  zipSpectrumAnalyzer32cmb.zip66.07 KB 
32 Band Spectrum Analyzer with Hz and  Band labels.
This combinator is no longer needed in Reason 7 which has a spectrum analyzer built in.
spectrum32label
32 Band labels

These are convenient Spectrum Analyzer combinators to see your song's frequency spectra. Each one has an accurate scale with Band and Hz labels. Since the dawn of Reason, people have been asking for labeled frequency bands, and now we more or less have it! Thanks to Rogerraa and Selig for the frequency measurements! 

I prefer the Spectrum Analyzer 32, but in case you don't need that much resolution, I also created a 16 band version.

Watch a video of this Spectrum Analyzer (76 Hz–10.5 kHz) in operation.

User Controls:
  • Band Select: 4, 8, 16, 32, FFT (512)
  • Decay: Lower = faster display; higher = overall averaging.
  • Display Scale: Roll this back to see the peaks.
  • Display Hold: Take a snapshot in time.

Place before final output. It's a great aid for balancing your mix!

You can leave this on without adversely affecting your output. The main signal passes straight through the combinator via an Audio Spider, so it's monitoring the frequency safely.
Vocoder Band Frequencies
center-frequencies

These reference charts for all band frequencies, seen below, are printed on each combinator. The frequencies were measured accurately by Allen Day ("rogerraa") and Giles Reaves ("selig") on PUF. Rogerraa did the initial measurements, which were later confirmed and "re-centered" by Selig using an audio analysis program called FuzzMeasure.

These are calculated "center" frequencies of a slightly wider bandwidth.
32 Band
Band 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Hz 76 89 104 122 142 166 196 230 270 318 371 436 510 597 701 823
Band 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Hz 962 1130 1325 1553 1822 2134 2508 2935 3439 4037 4740 5551 6509 7632 8949 10500
If you have an MClass EQ somehwere in your song, temporarily sweep one filter back & forth (with max Q, max Gain), and you should be able to see that peak on the analyzer and identify the frequency.

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