Monday, December 12, 2016

Pair of AKG D130 omnidirectional mics and Pleiades filters

Amazing sound quality.


If used on their own the voice was bass heavy possibly due to Fletcher Munson equal loudness curves or due to voice effort curves.


So a Pleiades filter of 100Hz were connected on each but sound was still unnatural and bass heavy.


With a Pleiades filter of 380Hz (inductance 82mH) male voice was very natural at 1-2in. It is a joy listening to analogue stereo recordings in this way, everything so alive.


There were some sibilant problems.


The microphones sounded perhaps better at an angle of 45 degrees as expected, (reducing the pressure doubling effect at high frequencies).


More experiments are needed with Pleiades filters of less than 380Hz.


Setup:


AKG D130 - Pleiades filter -
                                              - SONY TCD5 Pro II - Sennheiser HD 580
AKG D130 - Pleiades filter -


Piano and voice was recorded too, and at 82mH the piano sounded very real too.


One of the problems recording both piano and voice live is that the piano being a loud instrument makes the singer hearing the piano notes flater than they are (pitch depends also on intensity, see earlier euroelectron entries), so the singer may sing flat!


The AKG D130, Electro-Voice 635a, Sennheiser MD21 (tested vintage types) are some of the best microphones on the planet.


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