Telex: Teletype expanders

GoneCaving · 2018-07-03T14:25:41.737Z

Hmm, @scanner_darkly, this should probably make it into the 2.3 docs. Does this now mean that the behaviour of the op will depend on the Teensy version??

bpcmusic:

Documented in the v.020 release:

Wavetableapalooza: the TXo running with the Teensy 3.2 now has 45 different waveforms. You can access them with the TO.OSC.WAVE parameter, which now increments waveforms every 100 steps. For example: 0 = SINE, 100 = TRIANGLE, 200 = SAW, 300 = SQUARE, …, 4500 = RANDOM/NOISE. Waveforms are taken from the AdventureKid free waveforms pack AdventureKid free waveforms pack. I arbitrarily selected a handful for now; this may change in the future.

bpcmusic · 2018-07-03T14:41:54.146Z

It should. And, I’m supposed to update the docs. Hadn’t yet as I was waiting to include the TXo+ details - but I thought I’d have these babies in people’s hands sooner.

Bad Me!

I have another flight this week - I’ll make the changes when I’m in the air and submit a PR to @scanner_darkly.

freqout · 2018-07-03T15:10:27.328Z

ah ok yea that makes sense. looks like i have that firmware with the wavetables installed. thanks for the clarification!

scanner_darkly · 2018-07-03T16:08:12.569Z

it’s a small change, if you send me the wording i can do it, save you some time!

jimi23 · 2018-07-17T02:58:36.035Z

Successful TXi build checking in! Just waiting on OSHPark to ship the teensy helper board for the 3.6 then Ill build the TXo+

20180717_123431_HDR.jpg4160×3120 1.97 MB

Regarding the TXo, I had an OP idea, a Lorenz generator. Like the NLC Sloths. They don’t really require supervision or hands on control while patching, they just hum along doing their thing. Seems ideal if you had an unused TXo output to set up a slowly fluctuating random! I know theres TT chaos ops that could be slewed and updated periodically, but with the TXo ability to create oscillating modulations from just an INIT command it would be useful! There was a Lorenz Attractor on streams so theres some open source code here:

github.com

pichenettes/eurorack/blob/master/streams/lorenz_generator.cc

// Copyright 2014 Olivier Gillet.
//
// Author: Olivier Gillet (pichenettes@mutable-instruments.net)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

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alanza · 2018-07-17T03:14:47.005Z

of COURSE there was a Lorenz attractor on Streams

Pampalini · 2018-07-17T05:32:14.608Z

There used to be a couple of chaos generators in Teletype, not sure if they were retired or not. Probably won’t be the same as one out of the TXo, but it’s already there if you need one.

scanner_darkly · 2018-07-17T16:45:46.534Z

to clarify, no features or ops have ever been retired from teletype. some syntax and behaviour changed (which is documented here) but nothing was removed.

voidstar · 2018-08-16T08:27:20.818Z

Finally got around to setting up my DIY TXo and TXi in my case, and am having trouble getting envelopes and oscillations to work properly.

The modules seem to be working fine for the most part - just tested TXi’s TI.IN and TI.PARAM for each of the inputs and all is working as planned.

TXo is able to set and slew CV as expected, and using TO.TR works fine, but the other TO commands don’t seem to work; pulsing doesn’t seem to pulse the triggers, and I can’t seem to get envelopes to trigger using TO.ENV.TRIG. Haven’t been able to get the oscillators going either. Tried setting the attack and decay times first but no luck there either. Sometimes, after trying to trigger envelopes, I am no longer able to set that output channel’s cv.

I tried disconnecting TT from all other modules except for TXo, but that didn’t help.

Using v.021b and TT 3.0 release candidate.

Wondering if I am missing something obvious?

GoneCaving · 2018-08-16T08:48:06.746Z

ISTR you need to set the max voltage output via TO.CV first, then activate the envelope (TO.ENV.ACT), and then call the trigger (TO.ENV.TRIG).

x2mirko · 2018-08-16T08:49:05.093Z

Did you activate the envelope generator via TO.ENV.ACT? Also, did you set TO.CV? The oscillators and envelopes will only work within the range defined by TO.CV for that output, so you won’t get any output until you set a CV value.

voidstar · 2018-08-16T08:53:05.467Z

Thank you!

I must have missed that information. I thought ENV.ACT was more like holding the gate open, not activating the functionality.

I guess this comes down to RTFM

adrianf · 2018-08-16T14:56:42.383Z

I’m getting further in my TT studies and am considering these now. I really liked how you flipped the TELEXi so the ~~outputs~~ inputs were on the top and the knobs on the bottom (for bottom row of 6u).

@bpcmusic: Do you think it might be possible to get a faceplate, knob / ~~output~~ inputs orientation in this fashion?

desolationjones · 2018-08-16T15:06:06.621Z

Telexi has no outputs; those are CV inputs

adrianf · 2018-08-16T17:43:42.802Z

My apologies, I meant input port (not outputs)

ether · 2018-08-19T01:48:30.634Z

Any further firmware updates in the pipeline at the moment? Otherwise time for me to update to v.021 beta (I’m way back on v.016 at the moment).

laborcamp · 2018-08-20T03:51:37.519Z

I read the FM, and was also quite confused about this.
So, am just saying: it’s not just you. It’s a little under-explained…

bpcmusic · 2018-08-25T19:36:39.405Z

laborcamp:

It’s a little under-explained

Sorry if it is confusing. I tried to keep it as modular and flexible as possible. And while there are multiple mentions in the manual and examples in the new Teletype manual as well, it really takes until you “get it” for things to make sense. I’ve half-built some studies for the TXo that I really want to finish and share sometime. I think that will help a lot.

n-So · 2018-10-04T05:11:30.211Z

picked up a second-hand TxO from Control, installed the latest firmware, both on the txo teensy and on teletype, but can’t seem to get things working.

any telexo-based command i type anywhere in teletype causes teletype to freeze up permanently until powered down, and I get no visual response from the telexo. any ideas?

rikrak · 2018-10-04T06:41:04.661Z

It could be that he i2c cable is orientated wrong on one end. I had the exact same problem when installing my TXo recently.