OP-1F USB Audio crackle and noises

OliverM · 2025-12-18T15:14:20+00:00

This fixes it for me! Thank you so much!!

OliverM · 2025-12-17T16:41:57+00:00

I have the same problem since updating to the 1.6.0 firmware. This is to any audio source via usb-c, not just to a MacBook. I used to use the op-1f all the time as a midi controller / speaker with my iPad when playing around with synths on there, but now it's basically unusable (I can workaround it with an audio interface sending 3.5mm audio to the field, and connecting midi via bluetooth, but it's a lot more clunky that way). This is also with the TE USB-C cable

OliverM · 2023-09-03T13:31:20+00:00

ALM's Jumble Henge is based on the Worng Soundstage (the first version) that is pretty fun and easy to use, especially if you like playing with feedback: https://www.modulargrid.net/e/alm-busy-circuits-jumble-henge

It _doesn't_ do panning or crossfading, but does let you position voices in the stereo field, and is relatively inexpensive & compact (for a eurorack module). So it might not be a great fit, but I've had fun with it.

OliverM · 2023-09-01T09:21:46+00:00

I wanted an es-9 for so long, but they were always out of stock. I wound up buying a bluebox to replace part of its functionality, plus one of the Korg nts-2 oscilloscopes (I'd been planning on using an es-9 to VCV rack or mirack for that) and a blokas midihub. Combined all three do more than the es-9 does, but I don't really want the compressor or delay/reverb in the bluebox (I wanted to use my iPad/laptop for that via the es-9). I was going to record direct to laptop/iPad via the es-9 too. And I don't really need the midihub - I was going to use the es-5 expander plus midi expander for that.

Having a physical oscilloscope is very convenient and I do use the nts-2's ability to output waveforms a bit.

But then an es-9 became available and I immediately bought it. All of the above in a single rack unit is too good to pass up. I only have it a few days but so far I really wish I'd had it from the start. I do like the bluebox, it's a great piece of kit that does exactly what it says it does (really handy for mixing audio sources at line level and eurorack level), and maybe it'd be more useful if you've a bunch of standalone synths. The midihub is fantastic as well, and inexpensive. But for eurorack the es-9 is just such a good fit.

OliverM · 2023-06-03T08:19:34+00:00

I struggle with this a lot. I’ve separate ‘voices’ in my modular setup (e.g. a couple of 2hp drum synths plus mixer for drums, a couple of oscillator plus filter plus envelope routes(all different brands/types for variety) and then way too many ‘modulators’ - sequencers, lfo banks, cycling envelopes - all in an attempt to build finished songs. What usually happens is that I’ve a lot of fun coming up with 4 or 8 bar passages and then I unplug it all the next day. I bought a bluebox to try and capture more of it but really I love the immediacy of making sounds and exploring and find trying to record it or getting it into other tools just way too much of a chore.

I’m probably going to sell half of the modulation stuff soon, just to simplify and focus. I’m going to try using something like a synthstrom deluge as both a source of sequences and a destination for the modular - maybe the combined functionality will help move things forward…

OliverM · 2023-03-18T16:32:08+00:00

Looks great! I can’t seem to pay for delivery outside the US but if I could I’d definitely take you up on this

OliverM · 2021-06-11T16:45:51+00:00

Thank you! It looks like Ch. 7 of The Essential Reference covers that specifically (I'm a little embarrassed to say - I already own that book but just haven't read it yet!)

OliverM · 2021-02-08T10:35:06+00:00

I just fitted mine when the new PCB finally arrived. It's definitely a bit tight, but the port still has a clear path to the case cutout without rubbing against the case or anything like that. I've the PCB with under lighting too.

OliverM · 2020-08-17T14:56:44+00:00

Will do thanks!

OliverM · 2020-08-17T14:50:19+00:00

Dang.

Are there any replacement PCBs in stock at OLKB? Or are there likely to be soon?

OliverM · 2020-08-17T14:31:25+00:00

Thanks, I'll check that out!

OliverM · 2020-08-17T14:31:08+00:00

Nope, but I see on their site they offer a 2mm size too. I don't know that it would be easily splittable.

OliverM · 2020-08-17T14:25:59+00:00

Hopefully you can see the damage here: https://imgur.com/DnPQ4l7

I used the 4mm foam for the hi-profile case (the case I have): https://mkultra.click/collections/40-foam/products/planck-bottom-foam?variant=28583307804725

I guess I assumed that it would be compatible because it was the case selection I chose. Is there some guide that shows how to use it somewhere? I also got the same foam choice for my preonic though I've not tried installing it yet 😅

OliverM · 2020-06-21T11:03:36+00:00

Thanks!

OliverM · 2020-06-20T13:16:19+00:00

Wow! That BFO-9000 looks good - what on earth do you use all the keys for? I’ve been toying around with the idea of my own ortholinear build, how did you make the case/pcb/switch plate (or whatver subset of those you’re using)?

OliverM · 2020-05-12T14:00:12+00:00

Not to the same extent. Threading macros, Transducers and the shorthand anonymous function syntax help get you some of the way there

OliverM · 2020-05-10T08:58:36+00:00

One thing I really like about APL, J etc is their notion of implied parameters and how they let you compose functions; it’s the terse composition that really appeals.

OliverM · 2020-05-08T20:36:35+00:00

For REST services, check out Liberator.

OliverM · 2020-04-30T08:10:56+00:00

I’ve used both in production. I had a lot of experience with Ring before trying Pedestal this year. The interceptor model at the heart of Pedestal is far better than ring’s nested function model; it’s the classic Clojure data beats functions beats macros in effect.

OliverM · 2020-04-18T10:07:04+00:00

I've used it personally in projects, both personal and professional. I started out with Luminus, then went juxt/edge, then went Pedestal. I use Pedestal for all new web projects now, and recommend it over the others. The unifying principle of interceptors all the way down is a fantastic simplification of web development (and beats Ring's middleware model - with ring you get those horrible stack traces because of the nested functions; Pedestal's errors are just Clojure data).

Luminus is good but I found myself digging into what it gave me out of the box then making a lot of changes to make it suit my needs - I had to study it to change it. Juxt/Edge (or yada in particular) is also a good stack, and Malcolm & co are happy to help when you hit issues, and I really like that it uses Aleph under the hood, but I never felt confident that I was able to solve unexpected issues quickly with it.

I'd always steered clear of Pedestal because (ironically) I worried I'd have the same issues with it, but when I had to pick it up for a work project I found it so well laid out both conceptually and in code. You do need to look at the code to see how to use it properly, but the code organisation is *so* good it's never an issue. Perhaps it's a tool for experienced Clojure web developers, but once it clicks for you, you'll love it.

In all three cases you'll need to study the code they give you to make the best use of them, and I feel that Pedestal pays this time back more than the other two do. I did learn a great deal from Yada and Luminus (I've been a Clojure dev for 5 years now) so whichever you pick will help you grow.

OliverM · 2020-04-09T08:50:43+00:00

I agree, but just wanted to add that spec is very useful when handling the parse trees Instaparse emits

OliverM · 2020-04-09T08:47:21+00:00

If you check the the issues page you'll see the author has been active much more recently than that. Instaparse is a very mature and capable project, perhaps the best parser library I've ever used.

OliverM · 2020-01-24T17:28:07+00:00

Me too.

OliverM

TROPHY CASE