On the DSG - the subharmonic thing is not similar to hard sync but the
sound you get as the DSG tracks the osc you're syncing to is.
And yes, I think the PCO/NTO lacking hard sync is unfortunate. There
are many ways to achieve hard sync, but I don't know if this can be
done to the existing design without ripping some sensitive stuff out of
the design. In other words, it must be hard to do this to the existing
nto/pco.
So to get osc with hard sync you have to look at someone elses' gear.
jan-hinnerk.helms@... wrote:
sound you get as the DSG tracks the osc you're syncing to is.
And yes, I think the PCO/NTO lacking hard sync is unfortunate. There
are many ways to achieve hard sync, but I don't know if this can be
done to the existing design without ripping some sensitive stuff out of
the design. In other words, it must be hard to do this to the existing
nto/pco.
So to get osc with hard sync you have to look at someone elses' gear.
jan-hinnerk.helms@... wrote:
> Thanks to Chris, John and Blake for filling me up regarding CV
> attenuation and CVI details. But as you can imagine, I still have some
> questions left (ah...what a surprise):
>
> According to the catalogue, the NTO and PCO have sync capabilties. As I
> understand it, this is a dedicated “soft sync” input (allowing to
> beating-free lock the sync’ed oscillator’s frequency to any
> harmonic/fundamental/sub-harmonic of the syncing oscillator), but it
> does not allow for “hard sync” (resetting the sync’ed oscillator’s
> waveform whenever the synching oscillator has a reset, normally the
> rising edge of a square wave is used as the reset signal, see
> http://www.csounds.com/ezine/sync/ for a nice picture of hard sync).
>
> I asked Rex about modifying the NTO/PCO for hard sync. He answered that
>
> Hard sync is not available on the [PCO] or [NTO] -- you use the
> 'SIG" input jack(s) on the [DSG]s to perform the operation.
>
>
> So he refered to the "how to hard-sync using a DSG" section of the STS
> catalogue. In case you don't have it at hand, I'll quote:
>
> [QUOTE]
> Sub-Harmonic Series Generator (Divider). If a series of triggers are
> applied to the TRIG IN jack that are faster than the total rise plus
> fall time, then the unit will divide the incoming triggers by a whole
> number.
> [SNIP]
> If the Slope Generators are set to audio frequencies, and the incoming
> triggers are in the audio range, then the output will be the
> sub-harmonic series. This is similar to the "hard sync" sound found in
> other synthesizers (and is the main reason that it is not included on
> Serge VCO's).
> [UNQUOTE]
>
> When I visited George Miller and his Blue Fun Station, we checked this
> out, result: the sound of the subharmonic series is NOT similar to a
> hard sync sound.
>
> How is this? Did I miss something? Is the passage in the catalogue
> wrong? Is asking this question bordering on being blasphemous ;-) ? And
> am I alone with the wish to hear NTOs and PCOs hard-synced?
>
> Confused regards
> Jan-Hinnerk