[Ardour-Users] Ardour-Users Digest, Vol 190, Issue 6

Sun Jan 19 19:31:50 PST 2020

 Hi, 
I've looked into arpeggiators.  That's where my quest started.  The only issue is that the only arpeggiators that I could find for the Mac are full instruments that you program the patterns into.  I'm looking for something that sits between the recorded MIDI and then, like an arpeggiator, generates a MIDI stream that is first note, second note, first note, second note, etc.  
The closest I've found is Nora but when I put it into the plugins box above my instrument, Ardour tells me that there already is an instrument installed.  If I tell it to install anyway, Ardour parallel routes the MIDI to Nora and to the instrument.  I've tried editing the pinouts and can't get the MIDI out of Nora into the instrument.  It won't let me setup that routing.
Does anyone know any good arpeggiators that will install in the plugin stream and modify the MIDI as it passes through?  
I was a Reaper user under Windows and they have their own plugin that does this and I'm trying to replicate it's actions.

    On Sunday, January 19, 2020, 04:06:05 PM EST, ardour-users-request at lists.ardour.org <ardour-users-request at lists.ardour.org> wrote:  

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Today's Topics:

  1. MIDI "Rolling mallets" (Chuck Raudonis)
  2. Re: MIDI "Rolling mallets" (Ralf Mardorf)
  3. Re: MIDI "Rolling mallets" (Ralf Mardorf)
  4. Re: MIDI "Rolling mallets" (Gordonjcp)
  5. Re: MIDI "Rolling mallets" (Ralf Mardorf)
 Hi,
I want to simulate the sound of playing a steel drum where the note being held is rolled over and over either with itself or the same note an octave up.  The MIDI track will have two notes held as a chord for the note duration and the filter/plugin will take those two notes and roll them at a speed of maybe 1/32 of a beat alternating between the two of them.  1212121212 which simulates the player rolling his two mallets on the two notes.
I've looked all around for something to do this and haven't found anything.  I want the input to be the recorded MIDI and the output is the modified MIDI that goes out to the instrument loaded on that track.
Anyone have any ideas?
Thanks!  On Sun, 19 Jan 2020 04:29:02 +0000 (UTC), Chuck Raudonis wrote:
> Hi,
>I want to simulate the sound of playing a steel drum where the note
>being held is rolled over and over either with itself or the same note
>an octave up.  The MIDI track will have two notes held as a chord for
>the note duration and the filter/plugin will take those two notes and
>roll them at a speed of maybe 1/32 of a beat alternating between the
>two of them.  1212121212 which simulates the player rolling his two
>mallets on the two notes. I've looked all around for something to do
>this and haven't found anything.  I want the input to be the recorded
>MIDI and the output is the modified MIDI that goes out to the
>instrument loaded on that track. Anyone have any ideas? Thanks!  

Hi,

for similar purposes I tend to record something like this by one MIDI
track in the first place and after that to copy the MIDI track to one or
more additional MIDI tracks. Then I delete notes by one or the other
MIDI track, IOW the sum of all MIDI tracks has got no duplicated MIDI
note anymore.

So for your plan, I would keep the note being held, that isn't
manipulated by a filter, on one track and the other two notes on another
MIDI track, with another MIDI channel, using the same sound by a second
instance of the same synth.

Regarding the filter plugin it depends on what is available.
Either use a "normal" filter and control it by automation or use a
filter plugin with a step sequencer.

Not on my Linux machine, but on my iPad Pro I successfully used
https://apps.apple.com/app/perforator/id1382134258#?platform=ipad ,
unfortunately it only allows to control the volume, not a filter. Yes,
it has got a filter control, but it doesn't allow real filter effects,
it more or less just allows to fine tune the volume effect.

IIUC this Linux plugin does the same or something similar, too:
https://github.com/sjaehn/BChoppr

Maybe you are able to find this kind of plugin for manipulating the
audio stream with a filter. If not, consider to use automation.

Regards,
Ralf

-- 
“Awards are merely the badges of mediocrity.”

― Charles Ives 

> alternating between the two of them

PS: Oops, so you might need to use three MIDI tracks and three instances
of the same synth. Assuming it's a plugin synth, the MIDI channel
doesn't matter.

However, the procedure for the audio stream is still the same, use
filter plugins with a step sequencer, if available or use automation to
change the filter plugins values.

On Sun, Jan 19, 2020 at 04:29:02AM +0000, Chuck Raudonis wrote:
>  Hi,
> I want to simulate the sound of playing a steel drum where the note being held is rolled over and over either with itself or the same note an octave up.  The MIDI track will have two notes held as a chord for the note duration and the filter/plugin will take those two notes and roll them at a speed of maybe 1/32 of a beat alternating between the two of them.  1212121212 which simulates the player rolling his two mallets on the two notes.
> I've looked all around for something to do this and haven't found anything.  I want the input to be the recorded MIDI and the output is the modified MIDI that goes out to the instrument loaded on that track.

So, an arpeggiator?

-- 
Gordonjcp

On Sun, 2020-01-19 at 17:46 +0000, Gordonjcp wrote:
> So, an arpeggiator?

Good point :). When reading filter I thought of an audio filter to
affect the audio stream. Actually filter probably was meant as a MIDI
"filter" and not as an audio stream EQ alike filter. My bad.

An arpeggiator without doubts is what the OP is looking for.

However, what I described, manipulating the audio stream, to transform
hold notes into a rhythm pattern, is often done by contemporary music
productions.

Almost all synths nowadays come with their own arpeggiator, hence my
confusion.

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