Juergen
Now I understood what you meant but it isn't the case I believe
To make things easy : when sweeping with ribbon from a whatever note beyond
100Hz I plainly hear a kind of filter tracking below 100Hz down to 0 and the
same happens if I have for example to play low C at 16': if I transpose it
while keeping the note held I hear that "tracking" too. You can repeat the
test yourself; I heard this kind of effect in almost all recordings
featuring the CS polysynths where full ribbon sweeps were made.
If the PH board could be in this affair it could be , I guess, by
"supplying" a little extra power to the outputs at low pitches, tracking up
to no effect at high pitches.
Anyway, the fact is I hear a tracking.
M
----- Original Message -----
From: <jhaible@...>
To: <yamahacs80@yahoogroups.com>; "Max Fazio" <faxiomas@...>
Sent: Tuesday, December 06, 2005 12:20 PM
Subject: Re: [yamahacs80] harmnic loss - how is possible ?
> > What I told about high frequencies was a try to understand better what
> > Juergen said about his view of kind of a "bug" inside the cs80, that is
some
> > of the processed signal from EXP circuitry went into the bypassed signal
>
> No, no, no. I was talking about the Volume pedal function, built around
> PH1 and PH2. That's not a bug, or leakage of anything bypassed, that's a
> straight, intentional implementation of a "Loudness" volume control.
>
>
> > know that EXP adds loudness to the signal but I speculate this is not
the
> > case because ( I come back to the beginning ) because the signal should
have
> > been enhanced all over the place
>
> I don't know if the Loudness function explains the effect you are looking
for.
> I just gave a hint to include this in your search.
> But in general, when your harmonic content changes with pitch, you ∗do∗
look
> for a fixed filter (as opposed to a tracking filter), and the Loudness
filter
> network falls in that category.
>
> JH.
>
>
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