Second @mattlowery here. Also, I create a random trigger in a global chain using velvet noise, positive half rectifier, and skewed sine envelope via @EqualTemperament. I use this to trigger the manual grains unit.

1 Like

Ok, so, my only piece of advice here is to make sure that you’re not set up to reference slices/grains that fall outside of the range as defined by your reset trigger. I about drove myself crazy triggering sounds that shouldn’t have been there, because I was sending the playhead outside the portion of the buffer that I was actively recording to. :laughing:

1 Like

Oh dang! So, make sure the reference point is within my desired range. Got it!

Couple notes from my looping explorations:

Place all audio capture units and modulation sources within single-purpose global chains, when possible. Save your Output chains for mixing and effects.

The Pedal Looper unit doesn’t expose its buffer for use by other units.

The Sloop custom unit is a fantastic way to get clock-synced loops easily. It’s a bit CPU hungry, though.

Bump Scanner units can be used to create “morphing controllers” ala Doepfer A-144. Use that to control a bunch of VCAs for distributing audio or modulation to different chains.

If you are playing back from a buffer shared with a looper, you will hear a discontinuity if your play head crosses the record head’s position.

9 Likes

I’d also be curious to read these, would it be worth posting?

Sure thing - just a bit long. Happy to share with all.

I should say, there probably are more efficient ways to do this, but i like setting it up this way so i can keep things clear in my head. Once set up, it kind comes down to how you want to use it. I like setting up a system of CV and then just playing live into it for exciting/unprediuctable results. Could set it up in other ways to more directly represent morphagene though.

At the top level I just have a mixer. The whole unit is saved as a mixer because it makes it easy to add at a later point to other chains.

going into the next level of the mixer, I have two mixers. These mixers hold the feedback looper and the variable speed sampler. Putting them into mixers just makes it easier to separate them in my opinion.

Going into the third level on the mixer for the feedback looper, I have a feedback looper inserted. Once you insert, you need to attach a buffer to it by going into the settings of the feedback looper and selecting a buffer. When generating the buffer, save it as a name you remember so that you can find it later to refer your sampler to it.

Now that your feedback looper is set up, go up one level and go into the other mixer for the variable speed sample player. Going into the third level of this mixer, insert a variable speed sample player. Once you insert it, attach the buffer that your feedback looper is referencing. This will allow you to sample the audio as you record it.

Now, you have the base of the setup. The last thing you really need to do is insert slices into the buffer. If you go into the admin section on the left selector switch, and select sample pool, then select load samples and find your buffer, you then can insert slices in as many areas as you like. Now the setup is complete (If I’m remembering everything) and I would recommend saving it as a unit. (After assigning the gates and such as you plan to use them).

I have 16n attached to give me control of the different parameters, which makes it very playable, but its not necessary. On the variable speed sampler, I have a random voltage source controlling the slice select. this makes it so that random slices are chosen. Then I have a sequencer triggering the gate to trigger sample slices. I also enjopy sending quantized CV going to the variable speed to give me different intervals of pitch.

from there, go into the feedback looper, and start recording to it, and you should hear slices being triggered. If you are recording with 0 feedback, it should continually replace and keep very fresh.

12 Likes

Loving the discussion here from everyone. I’ve stepped away from my 301 for a good few months persuing Norns and a few other noise making devices, but this thread has got me itching again. :slight_smile:

2 Likes

I have one arriving Saturday and I’ll definitely be giving this a shot. There’s so much material to review, I feel like I’m going a little nuts.

3 Likes

Mine arrive Monday and since getting it on the i2c bus it’s been insanely slow learning. It’s so so SO cool, but holy crap. Really exhaustive amount of info to go through. I do wish there was a TIIIIINY bit more documentation but the community is really helpful and getting me up to speed.

I’ve recently acquired mine as well - I’ve mostly been focused on the synthesis side (which is fantastic), so am encouraged to see all the suggestions around live sampling / granular.

Man, all these ideas are making me super bummed that my Er-301 order got canceled with no reopening date in sight :frowning:

I assume you all are buying them secondhand somehow - Or did your orders manage to go through?

I am thrilled- no, honored- to share with you all what is surely to be a runaway internet sensation: my iPhone-captured single take video about using buffers on the 301. There isn’t any new information here; sometimes it helps (me, anyway) to watch someone else set it up.

So, you all enjoy while I go find an agent. :laughing:

Here’s a slightly better-looking example of how this kind of thing can be useful musically.

20 Likes

Getting to the truth of your subject with a raw direct look. Cinema Verite of Eurorack

3 Likes

super helpful super useful. wish I had this video 2 year ago…would have saved me hours of my life :stuck_out_tongue_winking_eye:

great refresher. thanks for taking the time and sharing

3 Likes

Doing some Friday night patching using the method I wrote above to manipulate the Rhodes. Mixed with a mother 32. Just friends and cold mac modulating each other and keeping things fresh with FM modulating JF (One of my favorite new discoveries).

8 Likes

Came off just fine! I’d rather see you make a video like this rather than letting some kind of perfection goal prevent it from happening.

I’ve never done a live loop slice delay with the varispeed player. Thought it sounded cool! I can see where it could be even more interesting with a more groovy gate source. Will have to try this out.

2 Likes

Thanks! One of my very favorite things to do is send gates from crow that are being triggered by midi clips that were intended to be drum patterns from Live. Essentially, build a whole drum performance, and use that as the groove for triggering the slices. Then one can get creative with how to choose which slices, whether by hand, LFO, or anything else. My favorite (and most fun) adventure involves using some light-dependent resistors to scrub through the buffer (there’s an Arduino Max plug-in which translates voltage into midi, which then gets translated back into voltage via Crow).

One day I’m going to build an LED glove for really precise control of this rig. One day :laughing:

2 Likes

Just get an old Nintendo Power Glove. You can achieve what Nintendo had dreamed! Either that or a Nintendo WiiMote and pretend to be a conductor!

1 Like

hey all, lots of great stuff in here! I’m a new user of the er-301 and a cocoquantus 2 as of a few weeks now and have been having lots of fun patching the quantussy modulation into the er-301 and watching it on the scope.

it then hit me that I could probably build the quantussy in the 301! after a bit of research, ‘quantussy cells’ have been an exploration point in eurorack for self-generative patches, but deemed difficult due to the number of modules and patch cables involved (each of the 5 cells needs an lfo/eoc trigger and 2 sample & holds). this would make the er-301 perfect as the only limitation would be cpu.

I think this would be a great first project to build to learn more about the two (it’s possible that most of the cocoquantus could be built w/ feedback loopers, delays + quantussy, reversed buffers, etc) but was wondering if anyone more experienced with the two would be down to help me troubleshoot? especially with er-301 custom-unit routing best practices and what is happening with the different leds in the middle of the quantussy/chaos knob. there’s a good amount of documentation and a vcv rack port of quantussy cells to reference as well (many thanks to pugix for most of this).

if this sounds like something you might be able to help me with, or have any suggestions or reasons why this wouldn’t work, shoot me a pm :slight_smile:

7 Likes

Hi everyone. Does anyone know if there’s a practical downside to sending audio into the A-D jacks? In terms of audio quality?