#1093

24ppqn is the default clock in and out rate on most modules. So yeah they don’t run any faster with 24ppqn in, they just have a higher fidelity clock. Most modules with a clock in describe their expected input rate in their manual if you’re unsure :smile:

#1094

I’ve been wanting to make a few midi to CV boxes so I can sequence part of my eurorack setup with my MPC. I came across the following which seems quite promising; https://little-scale.blogspot.com/2019/01/12-gate-16-cv-usb-midi-interface-bom.html

Does anyone have any experiences with this interface? Code seems easy to understand / alter, but wondering about resolution for 1v/oct for example. Secondly, but possibly off-topic, how does one go about ordering PCBs like this? When I check PCB manufacturers I get so many options it’s a tad overwhelming.

#1095

Thats a really good idea! I just got my Zadar a few months ago and the possibilities seem like I will be able to explore for a long time. Very deep! The other day I was experimenting with treating envelope signals out as drum-like sounds.

#1096

Wow good to know! Do all clock types modulate well with time? That might explain some clock skipping issues I has having with my moog grandmother. Maybe a miss match of clock type.

#1097

I’m not an engineer so I can’t really explain exactly how triggers/gates are detected in various modules but I believe some check for variance in level across time, so if the signal rose from 0v to 5v withing 1ms that counts as a trigger. But it’s really all over the place in eurorack when it comes to gates as triggers. There is nothing consistent about what level they are detected at, what level they’re output at and how they’re detected, except per manufacturer, most of the time.

Really my advice is just to keep doing what you’re doing as long as it works and if it doesn’t, use a comparator or perhaps raise the level of the signal (or both).

1 Like
#1098

ppqn is not the only issue. The voltage and length of gates/triggers is an even bigger problem when it comes to mismatches. It’s fairly common in Eurorack to have to use offsets and/or delays to get clocking to work.

3 Likes
#1099

I’m curious about people’s experience with the Tetrapad? How playable is it when using it in voltage fader mode?

I was looking at either a Tetrapad or a Doepfer a-198 to add some more control to my system. The Tetrapad looks pretty flexible but the a-198 looks like it might be more fun to play. I already have Pressure Points and Brains which I really like and plan on keeping but I’m looking for something different to add a different kind of control.

#1100

I’m super interested in generative/krell patches at the moment. So there is plenty of info about random pitches and how to make them musical with quantizers and the like, plus love the idea of Turing machines to setup pitch sequences.

Question I’m having at the moment is gates. I definitely want to keep notes playing in time with a clock but would like to have the gates vary in length. Not just divisions of the clock though, but longer gates too. For example, a gate that varies from 16th notes up to a full measure or what have you.

Also, sort of but not really related: if you couldn’t use a built-in EOC output of an envelope (such as not having the option on your module), how else would you arrange to trigger an event based on an envelope finishing?

#1101

A comparator will do that.

2 Likes
#1102

Maybe check out Noise Engineering Integra Funkitus. From the manual the gate mode selects “the probability that an edge will pass through; the die is rolled for both rising and falling edges. This produces much longer-lasting gate pulses than Trigger Mode as falling edges can be “consumed,” leaving the gate high until a subsequent falling edge passes the probability test.”

I’ve found it useful for generative and composed patches.

4 Likes
#1103

just got the Random Source Serge Resonant Equalizer and so far I’ve explored feedback and pinging a bit.

feedback is absolutely beautiful, I feel like you could do a short drone set with just this module and a couple of effects maybe (especially with two comb outputs used as stereo)

anybody got favorite things to do with Res EQ?

1 Like
#1104

Having invested a good deal of time and money on the topic of multitrack recording (specifically) a Eurorack modular, I’ve drafted an introductory guide. I would appreciate any corrections or suggestions.

https://doudoroff.com/multitracking/

14 Likes
#1105

Just an update … With the new firmware the ER301 can record internally up to 12 tracks. You can link them internally to create stereo pairs …

Also the recording process doesn’t afect the performance of the module as it has a separate CPU for the recording itself

4 Likes
#1106

Cool. If you’re recording 12 tracks, does that consume A1-D3? The ER-301 can otherwise just carry on doing what it does with whatever jacks you’re not using for recording?

#1107

Cool, I’m getting a comparator soon. I was actually getting it for playing with the idea of creating random gates (S&H noise into comparator’s positive input, threshold will set the amount of gates created). For EOC, did you mean like mult the output of the envelope and set the threshold to 0 or something?

#1108

Oh that sounds cool! I’m actually building an MU format system, which is why I was kind of vague about asking for specific modules. Noise Engineering has 4 of their oscillators in large format, but none of their other stuff. Still, this is an interesting technique to think about and I’m going to see if I can mimic it.

1 Like
#1109

Yes, but take the inverted gate output. Set offset to zero, then when your envelope dies the inverted gate on the comparator goes high. You could also use an envelope follower plus inverter logic.

2 Likes
#1110

You can also use an attenuverter and offset along with your comparator to do this. Set the offset to the same voltage as your threshold and use the attenuverter to invert your envelope. Now whenever the envelope is high the voltage will drop below the threshold of the comparator and whenever it is finished the comparator will go high again. It takes a bit of finessing to get the voltages exactly right, but I’ve gotten it to work with my System X ADSRs which lack a EOC output.

1 Like
#1111

You don’t really need external jacks to record … You can have an internal chain of, let’s say a stereo granular effect, and link the left and right channel to an internal recording track. By doing so you don’t even need to patch a cable. And also with I2C devices like Sweet Sixteen, Ansible or Teletype you can send CV and Gates to the ER301 with a 3 pin internal cable.

#1112

Ok, let me ask this a different way: how many external (physically patched in) channels of audio can the ER-301 record simultaneously?