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  1. in our band we are playing with the thougt to record our sessions with the zoom livetrack-l12...but this have no midi... up to now we recordet only the master-track without any midi at all so my question is: is it possible to convert a midistream to audio? and convert this audio-recording back to midi? so i could use one o the 12 channels for the midi (clock start stop notes and so on) are there already devices out there? i can remember that 30 years ago such things as midi tape exist... or is it maybe a cheap trick that can be solved with an optocopler an opamp and a few lines of code?     EDIT: its done   VIDEO-Overdubbing a JP8080:    
  2.     multitrack record, recorded with zoom livetrack12, made with one JP8080 for all tracks (also drums) overdubed with the Midi-Clock to Audio, Audio to Midi-Clock technology in order to drive a midibox seq light multiple once after a nother... info about midi-clock to audio: and wiki:  
  3. openMaster Masterkeyboard

    openMaster Masterkeyboard Today, i start the development of the openMaster master keyboard. It should be a kind of clone of the "openLabs Neko". Let's bring up some features: 61-key master keyboard computer with an VST host 64 pots (MIDI controller) 16 faders (MIDI controller) built-in hardware sequencer and an audio interface for high quality output If you want to see more of it, stay tuned 
  4. Hello, my vision is to create a 32x32 digitally controllable audio matrix. I already created a very basic functional concept based on the AD75019. But the IC in fact doesn't matter for now as it's still exchangable in my plans. Because I already own 4 AD75019 i've choosen them to create my first basic schematic. As I am only a software engineer with some basic knowledge in electronics I wanted you to have a look over this and tell me if its complete bullshit or perhaps ( I hope so ) a good base to start. As I read at I think the biggest problems which can occur is the mighty crosstalk problem (where the MT8816 should fit better than the AD75019) and possible gain problems when routing 1:n or n:1 . I read that even n:1 would make bigger problems than 1:n . If I understood it right, when making 1:n, it would solve the problems if I just add some buffer opamps after the matrix outputs. When I wanted n:1 I need something like a mixer style schematic running through the matrix IC. This would mean I have to add some resistors before the input of the matrix ic. In common to the 1:n option I also have to add an buffer opamp at the outputs of the matrix IC. To be able to chain multiple matrix ICs I also added some buffers before the inputs to be able to distribute the incoming signals to multiple ICs. Additional to that I added resistors and a final output buffer stage to merge the outputs of multiple matrix ICs. I don't know what would happen when making n:m connections. Should this be prohibited or is it possible without side effects ? Is this a reasonable idea or isn't it good to chain opamps ? Simplyfied it's nothng more than 2 opamp mixer units chained through the matrix ics. Will the audio quality suffer from this ? To keep it scalable I'd split boards into 3 types (without the controlling board and other stuff around).... 'input (distribution) stage', 'chainable matrix boards', 'output stage'. I hope you were able to understand my idea in this :)   Best regards, Andreas 32x32 audio matrix 01.pdf
  5. This is the open Audio Control Modul from SoundBlaster Zx