Tuesday, June 13, 2017

Additional filters for the Pleiades no loss passive (mixer) adder


To cut high frequencies at the gentle slope of 6dB per octave, for example.


Inductors inside male XLR connectors that will be in series may be used.


Capacitors in parallel.


Resistors or variable resistors in series, to adjust slope.


Also if a male XLR with a C (capacitor) inside is connected for example in parallel with a (male XLR) with an L (inductor) inside, then a reasonant filter is made.


R II side anothe male XLR in series change the Q or slope around the peak.


Any combination is possible.


And it reminds a bit the most low level (near machine) of all languages, machine code, done on analog circuits.


In fact it is an analog computer computing the waveform at the speed of light. Electrons doing the job directly.


And our brain judging and making decisions on how to program it to get the desired balance sound end result.


This is done using the minimum of passive components and simplest signal path without op amps and without power supply.


The vibrating electrons from the microphones are adjusted directly.


Any filter can be programmed at any gentle slope by just inserting the right male XLRs.


Another way is using a patch bay matrix such as the one found on EMS VCS3 synthesizer.


Or if very useful and interesting values of L are found they can be hardwired with selector switches.


Then of course at the output of this console adder (mixer) a preamplifier can be connected. Or a low noise pre preamplifier such as the Pleiades V series before driving an analog magnetic recorder and then a very high quality minimal signal path analog to digital converter.


It may be found by experimenting whether a D to A converter can be driven directly without using an analog recorder.


Another option is to use the instatenious magnetic Pleiades analog processor which consists of a receding amplifier driving a recording head, the playback head touching the recording head at the air gap and then a playback amplifier.


Or instead of heads a magnetic ring core such as mumetal or Nanoperm can be wound as a transformer with 2 windings. The constant recording current at all frequencies characteristic arranged by the high output impedance of the recording amplifier will make the ring core saturate in a similar way to magnetic tape analog recording.


Or a magnetic tape may be used for making a tape wound ring core. By winding the tape itself as when using tape spools, and making a toroidal shape. And then winding the two wire windings around this core, in an attempt to make an analog model of tape saturating by using the tape itself. And the billions billions of electrons inside it with their spins accordingly dynamically alligned performing instantaneous peak limiting processing at the speed of light of the music signal that lights our hearts.



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