Instruo arbhar granular processor

[corbetta]

Personally I love the reverb—both the wet-only implementation with negative voltages, for hazy, blurry, distant backdrops (not a huge fan of shimmer in general but it’s a nice option to have), and sending gates to the positive side to freeze bits of audio in the reverb without it getting out of hand.

Here’s some subtle wet-only arbhar verb:


And here’s some frozen/not frozen verb (this was done by riding an offset knob but it could be done with gates or envelopes too)

[adg672]

Ok cool, thanks for that

Anyone else getting triggers being dropped on the external input? Some Turing machine pulses not registered for example.

i was having the same issue using triggers from my Sapel. below is my convo with Instruo about it:

ME: Lastly, is there a minimum trigger length for the Strike input? it doesn't respond to triggers from my Sapel but Planar and Marbles (even at shortest gate length), seem to work fine.

INSTRUO: Trigger length is a generally undefined standard in modular. Theoretically a trigger should be a unipolar positive pulse with effectively no duration. In practice it is becoming more common for a trigger to be anywhere from around 10ms up to 30 or 40ms. Digital modules are a reason for trigger’s requiring a slightly longer duration. Analogue modules will often respond immediately to a rising edge, but digital modules will always have some form of subroutine testing on a GPIO pin that is either scanning at a particular internal clock frequency, or utilising a hardware interrupt.
As you have experiences, some modules’ triggers are working as you’d expect where some do not. This will be a case by case situation. There are methods of elongating triggers where necessary. My Cèis envelope can function as a gate to trigger and trigger to gate utility for these exact cases.

[xxeyes]

.

[Sync]

Thx for the answer! This much I get but I have no idea what module to use that puts out a steady CV. Like I said it seems like it would be super easy but I have no idea how to achieve this. I feel kinda stupid )

If you're still wondering about this, my solution might be worth considering-- I already had a Happy Nerding 3x MIA, and use that. It's a relatively skinny and inexpensive module but can be used in a variety of ways so it constitutes a really handy utility module. It has 3 attenuator/offset channels which can be used as an attenuator, a constant voltage, an attenuator+offset, a mixer, and the outputs can be connected so it can operate as an up to 6 input mixer. For a simple adjustable voltage, you only need one of its channels for something like the Arbhar, so the other two are available for other uses.

[MossGarden]

Had fun with this one, nice crunchy edges

[corbetta]

Does anyone else notices noise from the leds of the Arbhar? I’ve been trying to minimize it and it’s definitely an eminently useable module, but I can hear some whining/buzzing with say intensity all the way down and the level controls pushed up. Just curious if it was “dead silent” for anyone in that config so I don’t go chasing noise gremlins...

[joskery]

Does anyone else notices noise from the leds of the Arbhar? I’ve been trying to minimize it and it’s definitely an eminently useable module, but I can hear some whining/buzzing with say intensity all the way down and the level controls pushed up. Just curious if it was “dead silent” for anyone in that config so I don’t go chasing noise gremlins...

Haven’t noticed this myself.

EDIT: don’t know how the poop deflector emoticon got there, gonna keep it

[MossGarden]

Does anyone else notices noise from the leds of the Arbhar? I’ve been trying to minimize it and it’s definitely an eminently useable module, but I can hear some whining/buzzing with say intensity all the way down and the level controls pushed up. Just curious if it was “dead silent” for anyone in that config so I don’t go chasing noise gremlins...

input gain could have a factor, it does have the ability to soft clip nicely so if you've captured some noise floor that could be your issue?

[corbetta]

Does anyone else notices noise from the leds of the Arbhar? I’ve been trying to minimize it and it’s definitely an eminently useable module, but I can hear some whining/buzzing with say intensity all the way down and the level controls pushed up. Just curious if it was “dead silent” for anyone in that config so I don’t go chasing noise gremlins...

input gain could have a factor, it does have the ability to soft clip nicely so if you've captured some noise floor that could be your issue?

nah, it exhibits the same behavior with empty buffers as well. I think it's a ground/common issue, since it's more apparent when connecting to external speakers or other gear. Iso transformer on the audio path helps a fair bit too.

[xxeyes]

Does anyone else notices noise from the leds of the Arbhar? I’ve been trying to minimize it and it’s definitely an eminently useable module, but I can hear some whining/buzzing with say intensity all the way down and the level controls pushed up. Just curious if it was “dead silent” for anyone in that config so I don’t go chasing noise gremlins...

input gain could have a factor, it does have the ability to soft clip nicely so if you've captured some noise floor that could be your issue?

nah, it exhibits the same behavior with empty buffers as well. I think it's a ground/common issue, since it's more apparent when connecting to external speakers or other gear. Iso transformer on the audio path helps a fair bit too.

My Arbhar is fairly noisy when it is fully dry (even with input gain fully CCW), but becomes silent at fully wet. However, I’m actually just about to return it partially because of this noise, but mostly because the in-built microphone is extremely noisy - unusable. I spent a week trying to figure out what could be causing the noise without success. I see there is a LED directly beside the microphone - maybe that is the source of my noise...

[slexer]

... the in-built microphone is extremely noisy - unusable. I spent a week trying to figure out what could be causing the noise without success. I see there is a LED directly beside the microphone - maybe that is the source of my noise...

Just saw this post just now. I am wondering whether you have contacted Instruo about this? If you can, send a video to give us an indication what might go -or be- wrong. The microphone is obviously only an additional feature that was included to the arbhar to capture some close sounds. It should work well if you have your sound source approximately 10cm away. It certainly cannot replace proper microphones/pickups and pre-amps to capture instruments.

[xxeyes]

... the in-built microphone is extremely noisy - unusable. I spent a week trying to figure out what could be causing the noise without success. I see there is a LED directly beside the microphone - maybe that is the source of my noise...

Just saw this post just now. I am wondering whether you have contacted Instruo about this? If you can, send a video to give us an indication what might go -or be- wrong. The microphone is obviously only an additional feature that was included to the arbhar to capture some close sounds. It should work well if you have your sound source approximately 10cm away. It certainly cannot replace proper microphones/pickups and pre-amps to capture instruments.

Yes, I have been in communication with Jason at Instruo and I sent him an audio recording of the noise I am experiencing. I am sending my Arbhar for him to service/repair. There is definitely something wrong with my Arbhar (or perhaps my setup, but I don’t think so as none of my other modules, including Morphagene have noise issues). The noise is considerably louder than what I have heard in YouTube videos that demonstrate the microphone. I can’t record my Natural speaking voice from 10 cm away without audible noise, no matter what configuration of input/output gain I use and the noise increases considerably as I raise the input gain. The noise reduces significantly to usable levels with something plugged into the input jack (though I would consider even this level of noise to be high) and is unaffected by the input gain, so my issues must have something to do with the microphone. With the W/D knob fully wet, the noise disappears completely if the buffers are empty. Noise picked up in a recording would remain, of course.

[slexer]

... the in-built microphone is extremely noisy - unusable. I spent a week trying to figure out what could be causing the noise without success. I see there is a LED directly beside the microphone - maybe that is the source of my noise...

Just saw this post just now. I am wondering whether you have contacted Instruo about this? If you can, send a video to give us an indication what might go -or be- wrong. The microphone is obviously only an additional feature that was included to the arbhar to capture some close sounds. It should work well if you have your sound source approximately 10cm away. It certainly cannot replace proper microphones/pickups and pre-amps to capture instruments.

Yes, I have been in communication with Jason at Instruo and I sent him an audio recording of the noise I am experiencing. I am sending my Arbhar for him to service/repair. There is definitely something wrong with my Arbhar (or perhaps my setup, but I don’t think so as none of my other modules, including Morphagene have noise issues). The noise is considerably louder than what I have heard in YouTube videos that demonstrate the microphone. I can’t record my Natural speaking voice from 10 cm away without audible noise, no matter what configuration of input/output gain I use and the noise increases considerably as I raise the input gain. The noise reduces significantly to usable levels with something plugged into the input jack (though I would consider even this level of noise to be high) and is unaffected by the input gain, so my issues must have something to do with the microphone. With the W/D knob fully wet, the noise disappears completely if the buffers are empty. Noise picked up in a recording would remain, of course.

Good, sorry. I did not know you are going to send it in to us to check the input channel. I just wanted to make sure you had contacted us if what I've written above would not apply to your module.

[drxcm]

any word on the new firmware update release??

[corbetta]

Noise update: I think it's a power-related issue in my case. With the Arbhar plugged straight into my audio interface, with nothing else connected to the bus board, it's dead quiet. Now to solve it!

[RHB]

Firmware update 1.6.a is now available!

https://www.instruomodular.com/support/

General improvements to control algorithms.
Improved grain windowing
Improved USB saving and loading.
Folder _userfiles is now obsolete, place sound files you want to be able to load into the arbhar layers into the folder _toConvert.
Export sound files will increment file names and retain previously saved files for each layer.
Export all layers by selecting omega layer and pressing Shift, Capture and Trigger for more than two seconds.
New Track & Hold mode. Double press and hold the Shift Button to activate Track & Hold mode. This forces certain specific parameter changes (pitch, pitch deviation, intensity and texture) to only engage on the release of the Shift Button.

Added arbhar_config.txt automatically created on the USB stick that allows further customisation of some functions. These include:
Changing trigger output coming from every grain to triggers of the first grain independent of the intensity.
The Capture Gate Input can be set to latching or momentary by pressing the Shift Button and the Capture Button and moving the Dub knob fully anticlockwise (momentary, default) or fully clockwise (latching). When set to momentary, capturing will be activated for as long as a gate signal is held high. When set to latching, capturing toggles on and off with each successive rising edge signal.
The phase relationship between output 1 and output 2 can be set changed by pressing the Shift Button and the Capture Button and moving the Hold knob fully anticlockwise (for mono patching, default) or fully clockwise (for stereo patching).
Enable/disable deleting all layer content when omega is selected.
Adjusting Strike CV latency. Please note that lower latency settings might result in some problems with some sequencers so that the grain is triggered before the v/oct has been changed.
Adjust random intensity behaviour for knob setting clockwise of its centre position. Generate grains at random amplitudes and set asynchronous grain generation. Random amplitude and asynchronous grain generation settings can be adjusted in the arbhar_config.txt file
Define centre frequency for wavetable mode.
Deleting the arbhar_config.txt file from the usb stick will revert all settings to the default settings on creating a new arbhar_config.txt file.

[corbetta]

I know what I’m doing tonight!

[closedLoop]

Firmware update 1.6.a is now available!

https://www.instruomodular.com/support/

There's some big improvements in there. In the same way that Intellijel rethought the Quadrax firmware, I really appreciate that Instruo is listening.

[scragz]

Amazing timing, mine just got delivered

[corbetta]

I know what I’m doing tonight!

Er, make that Monday, as I don’t have a micro SD reader!

I’m very excited about the asynchronous grain stream implementation on the CW side of the intensity knob. The panning option in reverb mode is nifty too!

[joskery]

It's not a micro SD, it's a USB stick!

[slexer]

It's not a micro SD, it's a USB stick!

The firmware needs to go on the SD card. See the firmware update guide here: https://www.instruomodular.com/support/

Import and export of sound files is via the USB stick.

[joskery]

It's not a micro SD, it's a USB stick!

The firmware needs to go on the SD card. See the firmware update guide here: https://www.instruomodular.com/support/

Import and export of sound files is via the USB stick.

Oops! Thanks for setting me straight.

Also, this module needs a cheat sheet.

[corbetta]

Re: cheat sheet, the quickstart is super clear and easy to refer to.

[Black_Materia]

Are you guys sure about the SD card? I don't remember there being one on the back of the arbhar. The software works for both SD cards and USB. I think the mention of SD card is just generalization. In the Arbhar firmware dropdown section, there are only references to the usb stick.

edit: guess i was wrong. That looks pretty tricky