[sdiy] 2164 tempco in VCF applications

Michael E Caloroso mec.forumreader at gmail.com
Thu Nov 8 06:33:26 CET 2018


> The Xpander and Matrix 12 tuning routines include the filter cutoff and resonance.

But not the older Oberheims.  VCO range only (scale is not autotuned)

MC

On 11/8/18, Tristan <tu at alphalink.com.au> wrote:
> The Xpander and Matrix 12 tuning routines include the filter cutoff and
> resonance.
>
> /Tristan
>
> On Thu, Nov 8th, 2018 at 3:59 PM, Michael E Caloroso
> <mec.forumreader at gmail.com> wrote:
>
>> "Autotune" has no effect on the VCFs for the legacy poly synths.
>>
>> MC
>>
>> On 11/7/18, Tom Wiltshire <tom at electricdruid.net> wrote:
>> > If you’ve got memories and polyphony, you’ve probably got a “tune”
>> button
>> > which makes the tempco somewhat less necessary. The Prophet T8 and
>> > Xpander
>> > don’t bother, for example (unless there’s a tempco resistor in there
>> > somewhere I’ve not spotted).
>> >
>> > Tom
>> >
>> >> On 7 Nov 2018, at 10:55, Mattias Rickardsson <mr at analogue.org> wrote:
>> >>
>> >> On Wed, 7 Nov 2018 at 06:19, Michael E Caloroso
>> >> <mec.forumreader at gmail.com> wrote:
>> >> On 11/6/18, David G Dixon <dixon at mail.ubc.ca> wrote:
>> >> > It's probably not worth all the
>> >> > trouble, since filter cutoff doesn't require tempco
>> >>
>> >> Eh, the OBX VCF could sure benefit with tempco.
>> >>
>> >> Most VCFs benefits from tempco, especially in synths with memories or
>> >> polyphony.
>> >>
>> >> I'd rather say that some *users* don't require tempco. :-)
>> >>
>> >> /mr
>> >>
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>> >
>>
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