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General Discussion / Re: Nice bit of abstract sound
« Last post by Todoro on October 08, 2018, 01:31:06 PM »
That could totally work, Mario. It gets pretty eerie at times and not that serious at other times. Kind of a cool dynamic.
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Feature Requests and Feedback / Re: Granular Sampler Background Noise Question
« Last post by mario on September 18, 2018, 05:51:42 PM »
A little post-processing surely goes a long way. For example the way granular works, it doesn't have enough CPU power for more sophisticated tricks, joining grains neatly by ramping volumes up and down at boundaries. It just stitches chunks of waveforms together, resulting in steep jumps in signal level - audible as a kind of "cracking".

Or Low-pass IIR filters (pretty much all melodic channels unless you hold SET after keying in, which will switch to High-pass), they tend to leave residual white noise - you can remove it safely with additional low-pass above any useful signal. Software implementation is usually a lot more effective than what can be done in hardware - again, CPU can do at most 4th order IIR (with 24 db/octave roloff). Mixing 16 filtered voices together (8 per stereo channel) multiplies this residual noise again.

Ah and the delay can be switched off completely if needed, I'm sure you know that.

Looking forward to your samples - to be honest I can't very well imagine what you are trying to achieve as I lack experience working with DAWs - assumed there is enough tools in software world to do most of what a small HW synth can, and do it better - however the hardware surely allows for some interesting "happy accidents" :)
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Feature Requests and Feedback / Re: Granular Sampler Background Noise Question
« Last post by Palidor on September 14, 2018, 08:25:03 PM »
Looks like it was environmental. I tested again at home, and way less background noise (I'm thinking the mic is VERY sensitive, and was picking up even the smallest sounds from the ventilation here at work).

My only concern right now seems to be more in terms of sound quality and execution. For the sound quality, I think running the records sample throughs some plugins in Live will clean up the samples and allow me to craft them more succinctly. With regards to the execution, I'm referring more to the prevention of delay, and gaining more control over how the sound comes out. Perhaps I haven't read the docs carefully enough?

P.S. After i make a few samples, i'll upload them to the forum so people can play around with them!
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Feature Requests and Feedback / Re: Granular Sampler Background Noise Question
« Last post by mario on September 13, 2018, 10:32:36 PM »
Welcome to the forum! :)

Interesting question. Do you mean as soon as you start the channel (presumably first of the granulars, #411) there is already some interference? That should not happen, even at the highest volume settings you should only hear silence.

Once you enable sampling using S2, unless you knock on it, there should not be anything apart faint and monotonous background (inherent semiconductor noise). Is that what you hear?

I don't think a soundproof room would help here, if you hear any artifacts they are either from clipping the samples - does it change with S3/S4?

If it's environmental, a repetitive sound of certain frequency (buzzing, humming), it often happens that with repeating the same sample over and over, if in sync with echo delay timing, it gets amplified. Sometimes you even won't notice it was there in the room all the time :)

The mics are sensitive enough to easily hear whisper or even breathing... but the signal processing (in this channel) is quite lo-fi, a trade-off between polyphony and precision.

Feel free to upload an example, or send me via email, so we can rule out a hardware issue (although all units have been fully tested of course, it's worth checking). Also try to reset everything (#43214321) to make sure it's not some cranked internal mixing volumes / clipping problem.

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Feature Requests and Feedback / Granular Sampler Background Noise Question
« Last post by Palidor on September 13, 2018, 05:24:17 PM »
Hi all! New to the forums, so please excuse my initial ignorance.

I'm playing around with the granular sampler, which is amazing! However I noticed as soon as I enable it, there's some background noise. Is this because of low volume artifacts around me, and as such, is likely unavoidable without being in a completely soundproof room?

My interest lies in recording various loops into Ableton and rapidly creating a loop library. While there is the ability to fix up sounds in there after the recording, it would be much easier to minimize artifacts pre-recording.

Thanks in advance!
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Hardware - Extensions and hacks / Re: Spring loaded contacts?
« Last post by 843 on August 30, 2018, 05:52:47 AM »
I can confirm needing to carve into the dividing plate with the 18650.  It didn't take much and the carved area also, conveniently, serves to keep the battery in place. 
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Hardware - Extensions and hacks / Re: Spring loaded contacts?
« Last post by mario on August 29, 2018, 07:30:25 PM »
For 18650 you may need to carve the plate a bit, to give it extra 1mm of space, or the sliding door might not close. The ch340g - good you added it now - I meant to say as it isn't there in the beginning, the board can't be flashed normal way, only with the cumbersome SWD pogo adapter :)
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Hardware - Extensions and hacks / Re: Spring loaded contacts?
« Last post by 843 on August 28, 2018, 08:28:04 PM »
18650, correct.   I was trying to keep the sides free to not get in the way of wires and any potential additions that are accessible from outside the box.  I certainly can and will likely move it into a corner as soon as it starts getting in my way.

Lack of ch340g...Incorrect?
I certainly soldered one on there.

Short and flat enough shouldn't be a problem.
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Hardware - Extensions and hacks / Re: Spring loaded contacts?
« Last post by mario on August 28, 2018, 04:42:37 PM »
Your unit has charging circuit and 18650 cell right? So it won't be in the way if you drilled holes for 4 SWD pins matching where they are on the board. I'd leave them on a back plate, then you are not risking snapping pads off the board when the pressure is applied sideways.

For programming of "Adept" DIY kits - as they lack CH340G USB controller, I use this adapter - maybe you can make something similar but short/flat enough to fit under the sliding door.
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Hardware - Extensions and hacks / Spring loaded contacts?
« Last post by 843 on August 28, 2018, 11:48:25 AM »
I'm looking for suggestions to facilitate easy board removal and programming.  My thought was to acquire some pogo pins and either mount them to a back plate or the board itself.

Thoughts?

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