Rebel Technology: OWL Modular

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mars
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Rebel Technology: OWL Modular

Post by mars » Thu Jul 16, 2015 7:44 am

We finally have a release date for the long awaited OWL Modular: 1 August 2015.

The OWL Modular is a programmable DSP module based on our OpenWareLaboratory guitar pedal. All the patches that have been developed for the OWL Pedal work equally well on the Modular: phasers, flangers, delays, reverbs, distortion, compression, filters, shifters, screamers, laughers...
We are also extending the collection with new synthesis and sequencing patches made with the Modular in mind.

The specs, in brief:
  • DC-coupled stereo in/out
    3500 operations per sample at 24bits/48kHz
    4 assignable pots
    5 CV inputs
    assignable pushbutton
    gate in/out
Coming soon to a distributor near you!

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mars
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Post by mars » Thu Jul 16, 2015 7:57 am

Oh and here's a picture
Image

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Post by mars » Thu Jul 16, 2015 9:02 am

And a video:
[video][/video]

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exper
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Post by exper » Thu Jul 16, 2015 9:06 am

Wow, this is pretty cool. Is there a clockable delay? Is the processor capable of multifx, such as a delay/reverb combo?
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mars
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Post by mars » Thu Jul 16, 2015 9:31 am

No clockable delay yet, but you can expect many more Modular-friendly patches over the next few weeks.
http://hoxtonowl.com/patch-library
Patches can be combined in series/parallel or morphed, as long as you can keep track of the individual parameters and stay within the cpu and memory limits.

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pricklyrobot
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Post by pricklyrobot » Thu Jul 16, 2015 9:44 am

Interesting.

Really cool panel art, too! :tu:

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Post by mars » Thu Jul 16, 2015 9:49 am

pricklyrobot wrote:Really cool panel art, too! :tu:
thanks!

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gloomnox
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Post by gloomnox » Thu Jul 16, 2015 9:56 am

Very interesting! Will it be able to read PD patches/ assign the ins and outs in PD?

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Post by HIMA » Thu Jul 16, 2015 10:08 am

cool, good to see it's finally coming out! do you know what the power draw is yet?
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Post by mars » Thu Jul 16, 2015 10:13 am

Pure Data patches are compiled to C by the Enzine Audio compiler Heavy, see https://enzienaudio.com/.

We've got a short video showing the process here: http://hoxtonowl.com/2015/07/owl-heavy- ... -hardware/

We're currently working on an online compiler, which will let you do all this (and test the patch!) without installing any software, running commandline tools, or even leaving your browser.

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Post by mxmxmx » Thu Jul 16, 2015 10:15 am

gloomnox wrote:Very interesting! Will it be able to read PD patches/ assign the ins and outs in PD?
speaking of ... is the code used in the "OWL & Heavy" video available somewhere (yet)? ie 'heavy.sh' etc, i suppose ("... we can then compile for the owl using a couple of commands in the terminal")

edit. ah, ok ...
Last edited by mxmxmx on Thu Jul 16, 2015 10:16 am, edited 1 time in total.

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Post by mars » Thu Jul 16, 2015 10:15 am

Yes, it's been a long wait and lots and lots of hard work!
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Post by mars » Thu Jul 16, 2015 10:19 am

mxmxmx wrote:
gloomnox wrote:Very interesting! Will it be able to read PD patches/ assign the ins and outs in PD?
speaking of ... is the code used in the "OWL & Heavy" video available somewhere (yet)?
Have a look at the readme here:
https://github.com/pingdynasty/OwlProgram/

I'm badgering Tom to add the PD patch in the video to our patch library!

As said elsewhere, once we're done with development you will be able to do this and more with the online compiler.

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Post by mars » Thu Jul 16, 2015 10:36 am

gloomnox wrote:Very interesting! Will it be able to read PD patches/ assign the ins and outs in PD?
Simply name the parameters 'Channel-A', 'Channel-B' et c. to assign them to the knobs.

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Post by theewiper » Thu Jul 16, 2015 1:30 pm

Looks quite nice. Congrats.

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Post by olilarkin » Thu Jul 16, 2015 2:59 pm

I've been beta testing and making patches for this for a few months and I have to say it is really nice!

hope to post some videos soon

oli

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Post by coolshirtdotjpg » Thu Jul 16, 2015 4:20 pm

I think I'll have to get one of these. I'd love to create/edit pd patches for my modular.

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Post by oscillateur » Thu Jul 16, 2015 8:47 pm

How much memory is there ?

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Post by bennelong.bicyclist » Fri Jul 17, 2015 12:35 am

oscillateur wrote:How much memory is there ?
The BOM for the OWL effects pedal shows that it uses an 8Mbit SRAM chip. Not sure if the OWL eurorack module is the same.

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Post by oscillateur » Fri Jul 17, 2015 1:13 am

bennelong.bicyclist wrote:
oscillateur wrote:How much memory is there ?
The BOM for the OWL effects pedal shows that it uses an 8Mbit SRAM chip. Not sure if the OWL eurorack module is the same.
So using everything you would get a bit more than 45 seconds of audio at 16 bit/44KHz, right ? Keeping enough memory for other stuff that would mean 30 to 40 seconds of useable audio buffer ?

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Re: Rebel Technology: OWL Modular

Post by midiguru » Fri Jul 17, 2015 1:22 am

mars wrote: The specs, in brief:
  • DC-coupled stereo in/out
    3500 operations per sample at 24bits/48kHz
    4 assignable pots
    5 CV inputs
    assignable pushbutton
    gate in/out
Looks quite interesting ... but the specs listed above don't seem to correspond well to the photo. The photo has 8 knobs, not 4. It seems to have only 4 CV inputs. I see two "push" jacks, which I would guess are for pushbutton equivalents, but there doesn't seem to be a gate in/out.

Sorry to be nitpicky, but inquiring minds want to know....

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Re: Rebel Technology: OWL Modular

Post by Neo » Fri Jul 17, 2015 2:13 am

oscillateur wrote:So using everything you would get a bit more than 45 seconds of audio at 16 bit/44KHz, right ? Keeping enough memory for other stuff that would mean 30 to 40 seconds of useable audio buffer ?
By my calculations 8Mbits is enough for 11.36 seconds of 16 bit mono audio, or 6.58 seconds of stereo at 44kHz. There's a 1 second stereo delay patch in the Owl patches page. I'd be very interested to get confirmation of how much memory it has.
midiguru wrote:Looks quite interesting ... but the specs listed above don't seem to correspond well to the photo. The photo has 8 knobs, not 4. It seems to have only 4 CV inputs. I see two "push" jacks, which I would guess are for pushbutton equivalents, but there doesn't seem to be a gate in/out.
I'm guessing cv input 5 is the expression input.

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Re: Rebel Technology: OWL Modular

Post by mxmxmx » Fri Jul 17, 2015 2:39 am

Neo wrote:
midiguru wrote:Looks quite interesting ... but the specs listed above don't seem to correspond well to the photo. The photo has 8 knobs, not 4. It seems to have only 4 CV inputs. I see two "push" jacks, which I would guess are for pushbutton equivalents, but there doesn't seem to be a gate in/out.
I'm guessing cv input 5 is the expression input.
that'll probably be attenuators? looks as if there's only 4 ADC pins broken out (ie from the schematic on github).
mars wrote: Have a look at the readme here:
https://github.com/pingdynasty/OwlProgram/
ah, ok. sorry, missed this. so much stuff (owlware, owlnest, owlsim...).

and thanks. so i tried this last night and everything compiles fine .. separately (OwlWare, the heavy code dropped into OwlProgram). needed some fiddling with the makefile to also compile the patch into OwlWare.

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Re: Rebel Technology: OWL Modular

Post by oscillateur » Fri Jul 17, 2015 2:52 am

Neo wrote:
oscillateur wrote:So using everything you would get a bit more than 45 seconds of audio at 16 bit/44KHz, right ? Keeping enough memory for other stuff that would mean 30 to 40 seconds of useable audio buffer ?
By my calculations 8Mbits is enough for 11.36 seconds of 16 bit mono audio, or 6.58 seconds of stereo at 44kHz. There's a 1 second stereo delay patch in the Owl patches page. I'd be very interested to get confirmation of how much memory it has.
midiguru wrote:Looks quite interesting ... but the specs listed above don't seem to correspond well to the photo. The photo has 8 knobs, not 4. It seems to have only 4 CV inputs. I see two "push" jacks, which I would guess are for pushbutton equivalents, but there doesn't seem to be a gate in/out.
I'm guessing cv input 5 is the expression input.
Ah, you're right.
It's MBits, not MBytes :doh:

Also, there are probably 8 knobs because 4 of them are attenuators for the CV inputs I guess...

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Re: Rebel Technology: OWL Modular

Post by mars » Fri Jul 17, 2015 6:33 am

Neo wrote: By my calculations 8Mbits is enough for 11.36 seconds of 16 bit mono audio, or 6.58 seconds of stereo at 44kHz.
With the current configuration there is 1Mb (megabyte) external SRAM for heap (buffers), 64Kb CCM for stack, and 64Kb SRAM for code. Plus 48Kb SRAM used by the firmware. This can be reconfigured in different ways.
1Mb is 5.46 seconds of 32-bit floats at 48kHz, which is the default sampling rate and data type.
The device also has 1Mb Flash memory, used by the bootloader, firmware, factory patches, and user programs.
Neo wrote:
midiguru wrote:The photo has 8 knobs, not 4. It seems to have only 4 CV inputs. I see two "push" jacks, which I would guess are for pushbutton equivalents, but there doesn't seem to be a gate in/out.
I'm guessing cv input 5 is the expression input.
That's right, that's the centre jack marked EXP, corresponding to patch parameter E.
The second row of knobs set the amount of CV modulation for parameters A, B, C and D.
The two jacks labelled PUSH are Gate in and out (in on the left, out on the right, as per the stereo in/out labels). It's a lot easier to see the labels clearly when you have the module in front of you.
The LED in the centre is a two-colour illuminated pushbutton.

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