With a 5 minute long recording buffer Sloom can capture signals on the fly and keep them in the buffer until you manually delete it which is a great feature for live processing - and then you can send the signal to all sorts of other effect busses or use it as side-chain signal for FX playable via Midi (like e.g. crusher-X) - of course the latency/delay between input and out signal is huge if you set Sloom to its highest resolution like in my video (32.000+ bands). This will complement GRM Tools Evolution (which can be frozen), Grainspace (which also has a buffer freeze function with a maximum of 40 seconds) and crusher-X (60 second buffer).morphex wrote: Sun Jun 30, 2024 7:17 pmThat’s a great example Simon, it sounds very cool! It shows the kind of quick, tonal-shaping results that are possible with just a little effort. The spectral filter is capable of razor sharp precision and I really dig the way it sounds.Sampleconstruct wrote: Sun Jun 30, 2024 1:23 pm Testing Sloom with my own voice as live input, later also freezing the audio and checking out the spectral filter. This will be a great plug-in for live performances processing signals of live played instruments/vocals/spoken word, drawing in the spectral filter in real time in order to enhance/suppress certain areas of the audio signal yields interesting results.
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I was hesitant at first to think of Sloom in the context of a live performance since the results are somewhat unpredictable. But that could actually be perfect for those who enjoy a more experimental approach.![]()
Having it’s output processed live using MPE (or automation) with an effect like accSone’s crusher-X, the granular playground, would create some extremely exotic audio sculptures. I can see that being very useful for sound design purposes as well. I’m glad to see that you’re enjoying it Simon!!![]()
Anemond Sloom- Extreme time stretcher
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Sampleconstruct Sampleconstruct https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=191286
- KVRAF
- 16732 posts since 12 Oct, 2008 from Here and there
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Sampleconstruct Sampleconstruct https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=191286
- KVRAF
- 16732 posts since 12 Oct, 2008 from Here and there
Live On Video-Improv using Sloom, GRM Tools Evolution, Infiltrator 2, ÜberMod, my voice and some Shakuhachi noises as live input material.
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- KVRian
- 1450 posts since 9 Feb, 2007 from San Ramon, California
I am very curious what this thing actually does when a sound is slowed down to the point of near zero resolution relative to the sample time. As part of my professional work, I have worked quite a bit on algorithms related to spectral estimation and signal modeling based on the estimated power spectrum (mostly images in my case). I guess what I am wondering is how much of the response it generates is due to the algorithm itself and how much comes from the input signal.
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- KVRAF
- Topic Starter
- 1870 posts since 8 Jan, 2022
When it get to that level it's just looping the last spectral bin depending on the resolution.Gribs wrote: Sat Jul 06, 2024 3:45 pm I am very curious what this thing actually does when a sound is slowed down to the point of near zero resolution relative to the sample time. As part of my professional work, I have worked quite a bit on algorithms related to spectral estimation and signal modeling based on the estimated power spectrum (mostly images in my case). I guess what I am wondering is how much of the response it generates is due to the algorithm itself and how much comes from the input signal.
There is probably some interpolation between bins at faster speeds but I've noticed as you get to ridiculous levels there's just one bin played repeatedly regardless of speed.
I'd imagine that it's using something similar to Ircam's Super VP phase vocoding so a lot of the lushness you get from sloom is from the phase randomness control which effectively smears the signal.
Even the different algorithms seem to be just different levels of phase randomness that are independent of the phase randomness control.
For instance wide, narrow and robotic seem to be identical when phase randomness is at zero.
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Sampleconstruct Sampleconstruct https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=191286
- KVRAF
- 16732 posts since 12 Oct, 2008 from Here and there
Processing some tenor sax phrases (I recorded while practicing) with Sloom, first using the spectral filter in real time without time-stretching, B2 is providing some reverb.
Last edited by Sampleconstruct on Sat Jul 13, 2024 4:10 pm, edited 1 time in total.
- KVRAF
- 3639 posts since 21 Nov, 2015
Well done, Simon!
You can be creative in any right place on Earth, and not only in the wealthiest cities. Bring the world feelings from everywhere, and not only feelings of capitalistic or jail environment.
― Aleksey Vaneev
https://linuxdaw.org
― Aleksey Vaneev
https://linuxdaw.org
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- KVRist
- 416 posts since 27 Nov, 2017
How does Sloom compare to Steinberg's X-Stream?
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Sampleconstruct Sampleconstruct https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=191286
- KVRAF
- 16732 posts since 12 Oct, 2008 from Here and there
X-Stream (HALion/HAlion Sonic) is a great sounding, fully fledged synthesizer with filters, effects, modulators (LFO/MSEG) which you can actually play on a keyboard/Midi controller whereas Sloom is a great tool to stretch and spectrally process incoming audio signals or loaded wav files (using 4 different algorithms). The great thing about Sloom is that the spectral filter works in real time on incoming audio even without any time-stretching applied and the sound quality is really good.
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UltimiGiorniRecords UltimiGiorniRecords https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=694109
- KVRist
- 93 posts since 11 Mar, 2024
Love it but unfortunately I was able to use it only as standalone. I use FL STUDIO 21 as my main DAW and there no way to get it recognised as generator/instrument, it loads only as an fx which I think that is not its purpose and so I can not use it with my keyboard. Anyone faced same issue?
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- KVRist
- 291 posts since 19 Jul, 2016
Now, X-Stream fed INTO Sloom...now we're taking!Sampleconstruct wrote: Thu Nov 21, 2024 2:02 amX-Stream (HALion/HAlion Sonic) is a great sounding, fully fledged synthesizer with filters, effects, modulators (LFO/MSEG) which you can actually play on a keyboard/Midi controller whereas Sloom is a great tool to stretch and spectrally process incoming audio signals or loaded wav files (using 4 different algorithms). The great thing about Sloom is that the spectral filter works in real time on incoming audio even without any time-stretching applied and the sound quality is really good.
- KVRAF
- 2627 posts since 16 May, 2004 from Soviet Union
Omg omg
A new version of Sloom (v1.1) is now available. This update is free for all existing users.
Changes in version 1.1:
- Audio export as WAV file
- Playback head automation and MIDI mapping
- Fixed parameter automations when plugin window closed
- Fixed authentication errors in some Windows configurations
A new version of Sloom (v1.1) is now available. This update is free for all existing users.
Changes in version 1.1:
- Audio export as WAV file
- Playback head automation and MIDI mapping
- Fixed parameter automations when plugin window closed
- Fixed authentication errors in some Windows configurations
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- KVRian
- 1295 posts since 30 Oct, 2003 from Pacific NW, USA
Right on! Playback head automation is something that I was hoping to see in an update. So thank you to Anemond!!c_voltage wrote: Wed Nov 19, 2025 2:32 pm Omg omg
A new version of Sloom (v1.1) is now available. This update is free for all existing users.
Changes in version 1.1:
- Audio export as WAV file
- Playback head automation and MIDI mapping
- Fixed parameter automations when plugin window closed
- Fixed authentication errors in some Windows configurations
Sloom is such a cool effect, and is easily one of my favorite extreme stretching VST’s. For anyone who is interested, now would be a good time to pick it up, since it’s on sale for only 19 euros.
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- KVRian
- 1273 posts since 28 Sep, 2012 from Norway
And if you buy one plugin, you get good cross-/upgrade prices for the others.

