Dumb thru question

blingy · 2015-05-27T01:24:26.000Z

what the hell is the difference between ‘A B’ and ‘A+B’ in the thru settings?

PeterHanes · 2015-05-27T01:58:47.000Z

""blingy"":

what the hell is the difference between ‘A B’ and ‘A+B’ in the thru settings?

Check page 50 of the manual.

blingy · 2015-05-27T02:26:58.000Z

Ok ‘A B’ is each hard panned and ‘A+B’ is summed. I can hear the difference but I don’t totally get what’s going on. If I’m sampling a drum machine with stereo out I suppose I want it set to ‘A+B’ then? I also tried having two thrus and having one set to ‘A B’ and one set to ‘A+B’…not sure what is going on there…anyway…thanks

blingy · 2015-05-27T04:03:57.000Z

I guess I probably want to just record it in mono and deal with panning later…now I’m having trouble just making an LFO that will just play 16 notes one step up at a time. I would have thought setting parameter to note, wave to saw, multi to 1x, trig to sync one and depth and speed to 16 would do it, not quite

blingy · 2015-05-27T04:47:35.000Z

Ok an LFO of type saw, mult 4x, trig sync trig, speed 16 and depth 16 resets every 2 bars? Why?

oldgearguy · 2015-05-27T10:11:25.000Z

""blingy"":

Ok an LFO of type saw, mult 4x, trig sync trig, speed 16 and depth 16 resets every 2 bars? Why?

Page 70 of the manual has cryptic notes:
LFOs are always synced to the tempo of the Octatrack.

SPD1 sets the speed of LFO1. The higher the value the faster the LFO runs. For LFO speed synchronised to straight beats, try settings of 16, 32 or 64.
So 16 4x = 64 for 2 bars, so you can try LFO 64, mult 2x to get 1 bar.

Also - since you’re probably going to ask (everyone does) - page 36 of the MonoMachine manual has a very helpful chart showing the LFO waveshapes and the effect of using One, Half, etc.

I asked Elektron to include that chart in the OT manual, they agreed it would be a good thing, but as of the 1.25 version, it’s not in there.

oldgearguy · 2015-05-27T10:15:19.000Z

""blingy"":

I guess I probably want to just record it in mono and deal with panning later…now I’m having trouble just making an LFO that will just play 16 notes one step up at a time. I would have thought setting parameter to note, wave to saw, multi to 1x, trig to sync one and depth and speed to 16 would do it, not quite

No such thing as a mono sample captured using the OT (well, not really) –
page 50 is your friend. A B is your best bet since it’s really dual mono.

INAB selects which input or inputs of the input pair AB the recorder should sample from.
Five options exist.

• - will make the recorder disregard input AB when sampling.

• A B will make the recorder capture a stereo file in which the signal from input A is panned hard left and the signal from input B is panned hard right. This is the default option.

• A will make the recorder sample from input A. The captured sample will be in stereo even though only one input is used.

• B will make the recorder sample from input B. The captured sample will be in stereo even though only one input is used.

• A+B will make the recorder capture a stereo file in which the signals from input A and input B are summed

blingy · 2015-05-27T13:18:55.000Z

Thanks everyone. I have the manual and I’ve read it half a dozen times so just pasting from it doesn’t really help me understand. If the manual helped me I wouldn’t be asking here.

Is there a way to use an LFO to play a 64 step chromatic scale? Closest I’ve gotten is a 32 step chromatic scale. Thanks!

Rusty · 2015-05-27T13:40:57.000Z

""blingy"":

If the manual helped me I wouldn’t be asking here.

You wouldn’t be the first

""blingy"":

Ok ‘A B’ is each hard panned and ‘A+B’ is summed. I can hear the difference but I don’t totally get what’s going on. If I’m sampling a drum machine with stereo out I suppose I want it set to ‘A+B’ then? I also tried having two thrus and having one set to ‘A B’ and one set to ‘A+B’…not sure what is going on there…anyway…thanks

Don’t quote me… but two seperate mono signals A B versus a stereo signal A+B, that affect the internal summing from the inputs…

blingy · 2015-05-27T14:27:41.000Z

Thanks Rusty, I haven’t actually tried two separate sources, that actually makes sense for what A+B is for. If anyone is guessing at home I’m just trying to make a few 64 step sample chains in the Octatrack itself using an LFO.

oldgearguy · 2015-05-27T14:37:33.000Z

""blingy"":

Thanks everyone. I have the manual and I’ve read it half a dozen times so just pasting from it doesn’t really help me understand. If the manual helped me I wouldn’t be asking here.

Is there a way to use an LFO to play a 64 step chromatic scale? Closest I’ve gotten is a 32 step chromatic scale. Thanks!

The reason people give manual references is that we’ve had more than our share of people logging in and asking the most basic questions that even a single flip through the manual would have answered (or a quick look at the index, or using the search function in Acrobat Reader, …).

As far as the 64 step problem, what happens with mult 2x, speed 16? that should drop it across all 64 steps (assuming you only have 1 trigger set on step 1 (and trig mode = one ). Depth should probably be 64 as well.

Not in front of my OTs at the moment, so this is yet another internet conjecture rather than hard facts.

blingy · 2015-05-28T03:28:42.000Z

I think I need a trig on every step as this is a midi LFO. I’m starting to think there isn’t a way to get a 64 step long saw LFO.

blingy · 2015-05-28T04:07:12.000Z

Here’s another weird one…midi LFO again…

Parameter set to note, wave set to square, mult 1x, trig sync trig, speed 32, depth 3.

It should modulate between two notes, but the first note of the third bar will be halfway between them. A square wave should have two positions, not two with occasionally three.

blingy · 2015-05-29T15:03:16.000Z

Can anyone confirm or deny that a saw LFO on a midi channel has a maximum of 32 steps?

JSZ · 2015-05-29T18:14:21.000Z

I’m pretty sure an LFO can have a longer cycle than 32 steps.

About you square LFO; if you have trig sync on, your trigs should all play the same note since the LFO will start a new cycle on every trig. I’m not at the OT at yhe moment but I think you want to place an infinite MIDI trig, arpeggiator on with suitable speed and note length, then assign LFO (speed and waveform to taste) to the transpose parameter, to play back a series of different notes.