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John Marks
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Last seen: 1 month 5 days ago
Joined: Nov 7 2010 - 3:31pm
New: Ayre "Irrational, But Efficacious!" CD frequency and level versus time table

I have compiled a table for the Full Glide Tone, Track 7 on Ayre's "Irrational, But Efficacious!" CD, showing frequency and level versus time in 10-second increments. My purpose was to make it easier for people to get at least a rough idea of what frequencies might be exciting room resonances. I will caution people that using this track to check your hearing is a bad idea, because as the frequencies go up logarithmically, the sound level goes down just as fast, as you can see from the data. I used Amadeus Pro 2's Spectrum Analysis function. If anyone is curious about the methodology, ask.

Ayre’s Irrational, But Efficacious! System Enhancement CD,
version 1.2

Track 7: Full Glide Tone

Frequencies and Levels at Time Intervals


0:00 no signal
0:10 6 Hz -9.4 dB
0:20 8 Hz -6.8 dB
0:30 11 Hz -5.5 dB
0:40 14 Hz -3.9 dB
0:50 19 Hz -4.3 dB

1:00 25 Hz -8.2 dB
1:10 34 Hz -6.6 dB
1:20 45 Hz -8.2 dB
1:30 60 Hz -11.7 dB
1:40 80 Hz -13.7 dB
1:50 108 Hz -15.8 dB

2:00 144 Hz -20 dB
2:10 192 Hz -21.8 dB
2:20 256 Hz -24.7 dB
2:30 342 Hz -27.5 dB
2:40 458 Hz -31.5 dB
2:50 612 Hz -34.6 dB

3:00 818 Hz -31.8 dB
3:10 1094 Hz -41.7 dB
3:20 1462 Hz -45.6 dB
3:30 1954 Hz -49.9 dB
3:40 2613 Hz -54.7 dB
3:50 3494 Hz -60.1 dB

4:00 4673 Hz -66 dB
4:10 6250 Hz -73.1 dB
4:20 8359 Hz -81.9 dB
4:30 11,180 Hz -93.6 dB
4:40 14,995 Hz -112.4 dB
4:50 21,956 Hz -132.7 dB

5:00 no signal

©2011 John Marks

Ciao,
John Marks

Lamont Sanford
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Last seen: 2 weeks 6 days ago
Joined: Mar 31 2006 - 8:32pm
Thanks for taking the time to

Thanks for taking the time to do this.

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