Casio CZ/ VZ/ FZ - Pro Series

>I suspect HT uses PD rather than PCM because...
>
>1. There is no accoustic samples, or accoustic simulating short loops
>(like Korg DW-8000 and Ensoniq ESQ-1, etc...). All I hear is familiar
>CZ brass and EP, though I can't exclude entirely the possibility that
>it might be sampled CZ sounds.
>
>2. Some 'waveforms' has a short transient decay. The decay time doesn't
>vary when played at different pitch.
>
>If anyone is interested, I will upload some samples to our files section
>or other places.

You may be right there.  I initially thought it would be PCM mainly because 
most cheap casios of the time used PCM- it would have been easy for them to 
adapt sample playback architecture from the SK-1 or MT-240 or another 
keyboard of that era and add a filter and basic synth parameters.  But one 
interesting thing to think about is that the HT/HZ synths were market-wise 
between the low end PCM models and the high end PD models.

If you want to investigate more then I suggest looking at the waveforms on 
your computer and comparing the SD waves to the PD waves and see how similar 
they look, or take a peek inside each and see if they've got similar custom 
chips and that sort of thing.

>As for SD synthesizer models, I suspect they all share the same 
>architecture,
>but HT-6000 is a bit improved version.
>
>HZ-600: First introduced as a synth.
>HT-3000/3500/700: Programmable auto accompaniment and a drum machine
added.
>HT-6000: Velocity sense added.
>
>A catalog discription says that HT-6000 has 'Line edit' function. What
>it means is uncertain, but I hope it might be an ability to edit its
>two DCO's individually. 10 analog-like waveforms are printed on the panel
>of HT-6000, which reminds me of my CZ-1's panel. Maybe HT-6000 is the
>most editable in the SD synth line.

This exactly why I wish there was a site somewhere detailing each model...  
"line edit" does sound like a PD term..... but I've never even heard of the 
HT-6000 before.

I definately think I should pick up an HT-700 off of ebay one day...I 
probably wouldn't use it much but it would be fun enough to justify paying 
for it.

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