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Dave,

-Linear: linear rate in volts/sec

- Exp: exp rate so the pitch "slows" a bit as it reaches the end point

- "Variable": This is what the Expressionist does. The rate changes to

make the glide ∗time∗ constant. It is still a linear glide but with a

slope that varies depending on the interval so that the glide time is

constant. I ∗think∗ that is what I said in my original message. It

certainly isn't exponential. I think it is useful but it still isn't quite

as musical as exponential glide.

Am I missing something here? Paul says he is going to allow continuous

control from lin to exp which is really cool.

I had the first ELP album on the CD player this morning and it is really

easy to hear the exponential glide on "Lucky Man". The glide takes its own

sweet time getting to the final pitch. I think the reason this is more

appealing is that singers tend to use "exponential glide" when sliding into

the correct pitch.

relying on the MIDI/CV to do it.

in Buchla terms.

Eric

>I used to use an Emu mono series keyboard (4000) before I used their 4060Sounds very cool!

>poly kbd. It had a pot to sweep between linear and exp. glide shape. I think

>JH has documented just the glide portion of this circuit and it's floating

>around somewhere on Synthfool DIY.

>

>It is a very musical and versatile setup. Exp provides equal glide time noThis confuses me a bit. I think there are 3 types of glide:

>matter what interval you play. It also sounds more natural to your ear, with

>that rate slowdown as you approach the final voltage. Lin is also good for

>certain playing effects.

>

-Linear: linear rate in volts/sec

- Exp: exp rate so the pitch "slows" a bit as it reaches the end point

- "Variable": This is what the Expressionist does. The rate changes to

make the glide ∗time∗ constant. It is still a linear glide but with a

slope that varies depending on the interval so that the glide time is

constant. I ∗think∗ that is what I said in my original message. It

certainly isn't exponential. I think it is useful but it still isn't quite

as musical as exponential glide.

Am I missing something here? Paul says he is going to allow continuous

control from lin to exp which is really cool.

I had the first ELP album on the CD player this morning and it is really

easy to hear the exponential glide on "Lucky Man". The glide takes its own

sweet time getting to the final pitch. I think the reason this is more

appealing is that singers tend to use "exponential glide" when sliding into

the correct pitch.

>I've asked Tony to consider adding interpolationIndeed, I think I've resigned myself to needing a lag generator instead of

>tables to allow true exponential glide, and he's considering it for his next

>software update. Of course, I've also bombarded him with about 10 other

>requests, so I don't know what he'll manage to get in. For us modular users,

>it is maybe easier to just use a true analog lag circuit to get what we

>want.

>

relying on the MIDI/CV to do it.

>Another good use for exponential lag: input a gate signal, get an ARAnd if you can make it retrigger itself, it can become an LFO or a Pulser

>envelope signal out.

>

in Buchla terms.

Eric