Re: [ecasound] Using Nama (was: Re: Nama build issues (was: Re: Interactive mode, cut &) paste)

From: Lars Bjørndal <lars@email-addr-hidden>
Date: Sun Dec 30 2012 - 20:42:33 EET

Thank you very much. Your suggestion worked perfectly, changing the
value from 6 (as you suggested) to 20. It works with my current
ecasound installation, which is 2.7.2.

Thank you!


On fr., des. 28, 2012 at 01:31:07 +0100, Julien Claassen wrote:
> Hello Lars!
> the fx-parameter of all Ecasound's -ksomething options, is the
> position of the parameter to change.
> -ea and -eadb only have one parameter (the volume), so it's 1 . If
> you had the LADPA Glame Lowpass filter with the Unique ID 1891 you
> have two parameters cutoff and stages (i.e. poles of the filter). If
> you watned to change the number of stages/poles, then you'd give 2
> for fx-parameter.
> Good values. Experiment. 0DB is full volume. Question: do you want
> to raise the low part or lower the high part. Raise the low part,
> choose 0 and 6 (twice the volume in Db. Do the change between 26s
> and 30s, then your klg would look like this:
> afx eadb 0
> Added G volume
> acl G klg 1 6 0 3 0 0 26 0 30 1
> Meaning: modify fx-parameter 1 (the level). Start value 6 Db (high
> to raise the low bit), end value 0 Db (normal level). Then we have 3
> points. The first is 0s, where we have the starting value 0. We keep
> that until 26s (still 0, i.e. starting value), From there we
> linearly change to the end value (1 or 0Db, as written).
> Ecasound has to take start and end values, because the
> kl-something and km options then move between 0 and 1. It's like
> scaling. You tell Ecasound what is 0 and what is 1 and Ecasound will
> do the necessary multiplications to scale it for you. It doesn't
> mind, if the 0-start value is higher then the 1-end value. I'm
> sorry, if it sounds twisted. Once you get used to it, it's simple.
> I think, you could do this trick with only two point 26s and 30s.
> But I'm never sure. You might try. It's easier to think that way.
> Only always beware: It doesn't work like "I want a change at 26s, so
> I say start at 0 and then at 26s put a 1. Then it would ramp from 0s
> slowly to 26s.
> Warm regards
> Julien
> ----------------------------------------

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Received on Mon Dec 31 00:15:01 2012

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