I own a Casio CT-6000 and service manual, but haven't analyzed its complex hardware further (beside making PCB photos and contact cleaning). Here's a good video showcasing all its sounds and features: Soundsource for the casio ht 6000 pro#Perhaps to offer a lower cost home style preset keyboard (compared with their pro level CZ/ FZ/ VZ range), maybe that is why they developed the HT/ HZ Spectrum Dynamics series by utilising the CT6000's sound engine with some extra editing capabilities and adding an analogue filter(s)? They then concentrated on the CZ Phase Distortion line, along with the SK/ FZ sampling range. What could the sound generation synthesis be that Casio used for the CT6000? My suspicion is that it is an advanced form of Consonant Vowel, that Casio probably felt had been taken as far is it could go with the CT6000 (possibly used in the very rare Symphonytron 8000 model too). Soundsource for the casio ht 6000 full#The CZ's had no problem with going down a whole octave and staying in tune. The later Spectrum Dynamics range (HT/ HZ models) appear to share some similarities with the CT6000, especially when dropping that lowest note with the pitch bend wheel and holding down another note an octave above (though the SD HT/ HZ pitch bend doesn't have a full octave down/ up range). Additionally, some of it's behaviour doesn't indicate PD synthesis, for instance, when using the pitch bend wheel to go down a whole octave on the lowest note while also holding down a note an octave higher. it isn't capable of doing so without being slightly out of tune. However, the CT6000's patches don't SOUND like Phase Distortion to me, and the drums in particular sounds VERY analogue. The CZ's Phase Distortion line was being developed and was due for release in late 1984 in the form of the CZ101 , and many thought that the CT6000 used an early form of preset PD sounds (not to be confused with the CT6500, that DID use preset CZ sounds). Up to 1984, Casio had used mostly Consonant Vowel synthesis for the majority of their keyboards, with a brief foray into Sine Wave synthesis. These were all rather advanced for a 1984 home keyboard and were not evident in any of Casio's other commercial keyboards up to 1984. For instance, it has MIDI, a velocity AND after touch keyboard, Unison modes, lush choruses, a complex accompaniment section including "Super Accompaniment" that adds fills depending on how the person is playing, a pitch bend wheel with glissando control, and the ability to split and layer the keyboard. I have a Casiotone CT6000 in my collection, Casio's flagship model from 1984, and it's a very unusual beast for its time as it had a ton of high level features. Some of those that know about the workings of the early Casios might know? =CO=Windler can you shed some light on this model? Casiotone CT6000 model from 1984 - what synthesis/ sound generation does it use? What are the related models?
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