Good enough for you, maybe. My microphones run open loop, and so did the B&K electronics that proceeded them.
Charming, thank you for sharing.
BTY your microphones may work at 150dB but I strongly recommend you keep your ears below 102dB.
I have never had a system that did anything in the bottom 2 octaves. Can't say I have missed it.
How can you miss what you never had? The same goes for 'reference' quality audio electronics.
Nah, the kids would recognise that and tell me off. Shame I didn't get a picture of the xmas catcus (Schlumbergera)in bloom as that is another cutting off a mother plant that may be older than me. But here is it in all its glory.
Better use of my time to upload that than argue modulation noise...
Attachments
Head bumps = bass boost...the boost frequencies vary according to tape speed.
See my earlier post #59988.
Dan.
What intrigues me, is that material that to me is critical for understanding what matters, where, is incredibly hard to find. At one stage I got very interested in the matter of microphone distortion, should be easy to find "reference" material, I thought ... another, Haahhh!! Talk about house secrets - in the end it seemed to come down to: this mic came from a famous manufacturer, just accept that it's going to be excellent, don't worry your pretty head about unimportant stuff like distortion ...
And yet a single google query gives me this http://www.bksv.com/doc/083-80.pdf which shows how B&K recomment measuing non-linearity. I am sure if i tried harder there would be decade of stuff from them. After all they make test instruments not musical instruments...
Done that. Stupid time now. I'm restoring an apogee ribbon tweeter. As its a ribbon, things recorded on a ribbon mic will sound better played back through a ribbon.
Or have I been wrong assuming these things are commutative all these years ? 😉
Or have I been wrong assuming these things are commutative all these years ? 😉
Deviations from flat are due to impedance changes or mismatch--- Z vs distance/time. Check with Tek or HP literature on how to cal., use and interpret the measurement.
Being the test equipment junky that I am, I have and use the TEK 7S12 plug-in with S6 and S52; A 25ps system. Not a current model... newer models exist....but works fine.
THx-RNMarsh
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Interesting idea, but no this is unspooled! Same as when on the spool and I have four of them.
Sure.
The deviations are reasonably evenly spaced in time so perhaps the cable reel has been dropped heavily onto one side cheek, causing squashing of the cable on one side of the reel, and consequent change in characteristic impedance at intervals along the cable.
My suggestion is an informed guess ?.
I expect Ed well knows the reason and this is another of his valuable teaser questions/lessons.
Dan.
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