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NEW REVIEW & DEMO: the @pladaskelektrisk Baklengs Granular Synth Glitch Delay Weird and experimental sounds are the name of the Pladask Elektrisk game, and they've never been more on display than with the incredible Baklengs Granular Synth... Check out our website and YouTube channel for all the info! . . . . . #pedaloftheday #guitarpedals #guitareffects #effectspedals #pedalsandeffects #gearnerds #stompbox #becausetone #knowyourtone #tonefordays #toneheaven #pedaldemo #fxpedals #notpedalbored #guitarfx #pladask #pladaskelektrisk #baklengs #granularsynth #glitchdelay #delaypedals #sundaymorning https://www.instagram.com/p/CU2W8eQredB/?utm_medium=tumblr
#pedaloftheday#guitarpedals#guitareffects#effectspedals#pedalsandeffects#gearnerds#stompbox#becausetone#knowyourtone#tonefordays#toneheaven#pedaldemo#fxpedals#notpedalbored#guitarfx#pladask#pladaskelektrisk#baklengs#granularsynth#glitchdelay#delaypedals#sundaymorning
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Soundtrack for plants beyond curtains #dailybleeps #sounds #minimal #ambient #experimental #electronic #synth #synthesizer #soundtrack #opz #teenageengineering #soundscape #quiet #lowfi #iosmusic #sampling #glitch #slow #granularsynth #simple #windows #curtains #shadows #plants #sunlight #musicforfilm #synthesis https://www.instagram.com/p/B1h13A7BRwh/?igshid=yfvkw7p58qiz
#dailybleeps#sounds#minimal#ambient#experimental#electronic#synth#synthesizer#soundtrack#opz#teenageengineering#soundscape#quiet#lowfi#iosmusic#sampling#glitch#slow#granularsynth#simple#windows#curtains#shadows#plants#sunlight#musicforfilm#synthesis
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🅜🅐🅓🅝🅔🅢🅢ⒺⓅ Anyone who pre-order the vinyl 𝙈𝙖𝙙𝙣𝙚𝙨𝙨 𝙀𝙋 enter to a 𝗣𝗼𝗹𝘆𝗲𝗻𝗱 𝗧𝗿𝗮𝗰𝗸𝗲𝗿 giveaway ! Vinyl campaign link ↦ bit.ly/madnessvinyl More informations about 𝗣𝗼𝗹𝘆𝗲𝗻𝗱 and his 𝗧𝗿𝗮𝗰𝗸𝗲𝗿 : ▪︎website : polyend.com/tracker/ ▪︎insta : @madeinpolyend #polyend #polyendtracker #standalonehardwaretracker #hardwaretracker #tracker #stepsequencer #songarranger #sampler #wavetablesynth #granularsynth #breakcore #junglist #thejunglechrist #madeinpolyend #pokorasoundsystem #concretecollagerecords (à Lyon, France) https://www.instagram.com/p/CWlvYp4Ayp-/?utm_medium=tumblr
#polyend#polyendtracker#standalonehardwaretracker#hardwaretracker#tracker#stepsequencer#songarranger#sampler#wavetablesynth#granularsynth#breakcore#junglist#thejunglechrist#madeinpolyend#pokorasoundsystem#concretecollagerecords
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Skepta x William S. Burroughs (excerpt) Made w @tracktionsoftware's delta-v spacecraft vst Audiogram made w @getaudiogram . #music #workinprogress #wip #inthestudio #skepta #williamsburroughs #languageisavirus #egoless #egolessness #ruboutthewords #cutup #granular #granularsynthesis #granularsynth #spacecraft #tracktion #audiogram #experimental #experimentalmusic #vst #electronicmusic #dessicant #idm #glitch #grime #grimemusic #musicianslife #producersofinstagram #experimentalhiphop #jsimpson (at Portland, Oregon) https://www.instagram.com/p/CSNyr0nHbrx/?utm_medium=tumblr
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Finally got to download my second gift of the giveaway I won woop woop! 👽 . . . . . #output #spitfire #giveaways #plugin #granular #fx #fxplugins #music #edmproducer #electronicdancemusic #musicproducer #orchestra #granularsynth #woop #woopwoop #friday #fridays #fridaymood #fridayvibes #riograndevalley #ideas #new #newideas https://www.instagram.com/p/B6BKhUjnp5G/?igshid=nj9rimhdgh9f
#output#spitfire#giveaways#plugin#granular#fx#fxplugins#music#edmproducer#electronicdancemusic#musicproducer#orchestra#granularsynth#woop#woopwoop#friday#fridays#fridaymood#fridayvibes#riograndevalley#ideas#new#newideas
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The Original Scottish Whale https://video.twimg.com/ext_tw_video/1260951621846138880/pu/vid/1280x720/D1vf1EiO7puvQtLB.mp4?tag=10 #Bitwig #Music #Musicproduction #GranularSynth
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🎰😎my granular synthesizers in still life💀🔋 #granularsynthesis #granularsynth #diysynth #synthporn #lovesynth #diy #instagood #inspiration #stilllifephotography #stilllife https://www.instagram.com/p/BnbUxZEByEI/?utm_source=ig_tumblr_share&igshid=bito224jx3xj
#granularsynthesis#granularsynth#diysynth#synthporn#lovesynth#diy#instagood#inspiration#stilllifephotography#stilllife
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QUANTA #granularsynth by #audiodamage is now available in #ios 🎹#specialintroductoryprice #iosmusician #iosmusic
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SPIN art by @meta.point / music by bitebits Check my bandcamp for the true stereo experience 😏😘 . . . #gif #gifart #spin #blue #surreal #electronica #electronic #dance #idm #modularsynth #eurorack #moog #sub37 #ableton10 #elektron #analogfour #norddrum #norddrum3p #drumming #livedrumming #fender #rhodes #granular #granularsynth #es175 #woodblock #nordwave #sequence #foley #sounddesign (at Utrecht, Netherlands)
#livedrumming#analogfour#modularsynth#norddrum3p#granularsynth#es175#spin#foley#surreal#electronic#ableton10#eurorack#fender#dance#electronica#idm#rhodes#sounddesign#elektron#nordwave#norddrum#moog#gifart#gif#drumming#sequence#blue#sub37#woodblock#granular
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Here’s a sneak peek of some sounds we created for the Baklengs Granular Synth Glitch Delay from @pladaskelektrisk!! Head over to YouTube, subscribe and turn on notifications to see this and all of our upcoming pedal adventures. Cheers! . . . . #pedaloftheday #guitarpedals #guitareffects #effectspedals #pedalsandeffects #gearnerds #gearpassion #becausetone #knowyourtone #tonefordays #toneheaven #gearshots #gearphoria #notpedalbored #pladaskelektrisk #pladaskelektriskbaklengs #baklengs #granularsynth #glitchdelay #delay #delaypedal #sundaynight https://www.instagram.com/p/CU3tMOyAsFV/?utm_medium=tumblr
#pedaloftheday#guitarpedals#guitareffects#effectspedals#pedalsandeffects#gearnerds#gearpassion#becausetone#knowyourtone#tonefordays#toneheaven#gearshots#gearphoria#notpedalbored#pladaskelektrisk#pladaskelektriskbaklengs#baklengs#granularsynth#glitchdelay#delay#delaypedal#sundaynight
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Soundtrack for shrub bunny #dailybleeps #sounds #minimal #ambient #experimental #electronic #synth #synthesizer #soundscape #quiet #lowfi #rabbit #bunny #backyard #neighborhoodnature #animals #granularsynth #iosmusic #synthesis https://www.instagram.com/p/ByjdS5fh3uv/?igshid=1kd349wncbb51
#dailybleeps#sounds#minimal#ambient#experimental#electronic#synth#synthesizer#soundscape#quiet#lowfi#rabbit#bunny#backyard#neighborhoodnature#animals#granularsynth#iosmusic#synthesis
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(Via: Hacker News)
If you want to make a sound shorter, you can play it faster. Doing this also makes it higher pitch unfortunately.
If you want to make a sound longer, you can play it more slowly. This also makes it lower pitch though.
Sound length and pitch are tied together and there’s no way to change one without changing the other.
… Actually that’s a lie. Granular synthesis can be used to change playback speed and pitch independently!
This post talks about how granular synthesis works, gives some examples you can listen to, and also supplies simple standalone C++ code that does it. (680 lines of code, one source file, only standard C++ includes, no libraries used.)
By the end of this post, you should even be able to program your own “autotune” effect.
The code and audio samples are available on github here: https://github.com/Atrix256/GranularSynth
Granular Synthesis Basics
Granular synthesis is conceptually pretty simple. The first step is to break a sound file up into small sections of sounds called “grains” that are typically between 10 and 100 milliseconds long.
You don’t have to do anything special to make grains, you just literally cut the sound up into a bunch of pieces.
To make a sound twice as long, you then make a new sound where each grain is repeated twice. When you play it back, it will sound mostly the same and be the same pitch, but will be twice as long.
To make a sound half as long, you would just throw away every other grain. The result is a sound that mostly sounds the same, and is the same pitch, but is half as long.
You aren’t restricted to integers though. You could easily throw out every 3rd grain to make it 2/3 as long or repeat every 5th grain to make it 20% longer.
You can also adjust pitch instead of length.
To make a sound that is the same length, but has twice as high pitch, you would double each grain, but play them back twice as fast. That would result in a sound that was the same length but had frequencies that were twice as high.
To make a sound that is the same length, but had half as high of a pitch, you would throw out every other grain, but play the ones you kept twice as slowly. That would result in a sound that was the same length but had frequencies that were half as high.
Congratulations, you now understand granular synthesis!
There are other usage cases of granular synthesis, but they are a lot more exotic – like making crazy cool sounds.
There are also variations of granular synthesis where grains overlap instead of being omitted, when dealing with sounds getting shorter, or grains being played a non integer number of times.
Check out this youtube video to see an insane usage case for real time granular synthesis. WTF! Youtube: Drum Sound Experiment – Dynamic Granular Synthesis
Some Granular Synthesis Gotchas
If you just do the above, you are going to have some issues with clicking and popping. When you put grains next to each other that weren’t next to each other before, there is going to be a discontinuity in the audio wave form, which translates into very short, very high frequencies that make a popping noise.
What’s more is if your grain size is 20 milliseconds, that means you will get a pop 50 times a second, which means you’ll get a 50hz tone from the popping.
So, how do you fix this?
One way is to use envelopes to do cross fading.
If you wanted to put down grain A and then grain C that would make a pop because A and C expect B to be between them.
Using an envelop to fix this problem, you’d put down grain A, and then next to it you’d put down grain B but have it’s volume go from 1 to 0 over some length of time (like 2 milliseconds). You then ADD grain C on top of grain B, but have it’s volume from from 0 to 1 over the same length of time.
The result is that there is no immediate “pop” from discontinuous wave forms. Instead, it gently fades from one grain to the next over the length of the cross fade.
Note that the above is equivalent to linearly interpolating from grain B to grain C over the length of the envelope, it’s just done in two passes.
I’ve heard that another way to handle this problem is that instead of cutting grains perfectly at the time / length they should be at, you make the cuts at zero crossings that are closest to the desired cut position.
What this does is make it so you can put any grain next to any other grain, and they should fit together pretty decently. This gives you C0 continuity by the way, but higher order discontinuities still affect the quality of the result. So, while this method is fast, it isn’t the highest quality. I didn’t try it personally, so am unsure how it affects the quality in practice.
Another issue you will encounter when doing granular synthesis is wanting to play back a grain at a non integer playback speed. This means you may want to sample index 0, then index 1.1, then index 2.2 and so on. How do you sample a fractional index?
A quick and easy way is to use the fractional part of the index to linearly interpolate between the two samples it’s in between. That means that sampling index 2.2 would be a linear interpolation between index 2 and index 3, and would be 20% of the way from index 2 to index 3. AKA it would be value[2] * 0.8 + value[3] * 0.2;
Another way to sample fractionally is to use cubic hermite interpolation. It’s more expensive to compute but interpolates more smoothly, and perserves first order derivatives.
You can read more about that on my blog post here: Cubic Hermite Interpolation
Lastly, there are a couple parameters to these techniques that have to be hand tuned for the situation they are used in:
Grain Size – Some usage cases want larger grain sizes, while others want smaller grain sizes. You’ll have to play with it and see what’s best for your usage case. Again, I’ve heard that typical grain sizes can range between 10 and 100 milliseconds.
Envelope Size – The size of the envelope used for cross fading can affect the result as well. Too short an envelope will start to make popping happen, but too long an envelop will muddy your sound.
Drums and other percussion instruments have a particularly hard time with granular synthesis because they are usually made up of very short but noticeable sounds. If these sounds get (partially?) repeated, it will sound weird and wrong.
Check the links at the end of the post for deeper reads into these topics and more!
Experiments & Results
For all experiments, I used a sound clip from one of my favorite movies “Legend” where Tim Curry plays the devil, and Tom Cruise and Mia Sara are the main characters fighting him.
legend1.mp3: https://demofox2.files.wordpress.com/2018/03/legend1.mp3
The experiments use cubic hermite interpolation to sample fractionally, and they use crossfading to fight popping between grains. Everything uses a grain size of 20 milliseconds, and a cross fade of 2 milliseconds.
Naive Pitch / Length Adjustment
To start out, we can play the sound faster and slower to naively adjust pitch and length.
Here’s a fast / high pitched version (70% of time): https://demofox2.files.wordpress.com/2018/03/out_a_fasthigh.mp3
Here’s an even faster / higher pitched version (40% of time): https://demofox2.files.wordpress.com/2018/03/out_a_fasterhigher.mp3
Here’s a slow / low pitched version (130% of time): https://demofox2.files.wordpress.com/2018/03/out_a_slowlow.mp3
And here’s an even slower / lower pitched version (210% of time): https://demofox2.files.wordpress.com/2018/03/out_a_slowerlower.mp3
Granular Synth Length Adjustment
Here is a sound made shorter (70% of time) using granular synthesis, so is the same length as the fast/high version, but has the same pitch as the original. Pretty cool, right? https://demofox2.files.wordpress.com/2018/03/out_b_fast.mp3
Here is the sound made even shorter (40% of time) so is the same length as the faster/higher version, but has the same pitch as the original again. https://demofox2.files.wordpress.com/2018/03/out_b_faster.mp3
Here is the sound made longer (130% of time), but again has the same length as the original. https://demofox2.files.wordpress.com/2018/03/out_b_slow.mp3
And here is the even longer version (210% of time). https://demofox2.files.wordpress.com/2018/03/out_b_slower.mp3
Granular Synth Pitch Adjustment
If we want to adjust the pitch but leave the length alone, there are two ways you could do that.
The first way is to use granular synthesis to change the length of the sound (longer or shorter), keeping the pitch the same, then use the regular “naive” method to make that resulting sound be the original sound length again.
If you made the sound shorter to start with, this process would decrease the pitch. If you made the sound longer to start with, this process would increase the pitch.
Here is a sound where that process is used to make the pitch about 1.43 times higher (1.0/0.7), but keeps the same sound length. https://demofox2.files.wordpress.com/2018/03/out_c_highalternate.mp3
Another way to get a very similar result is to just change the playback rate of the grains themselves – INDEPENDENTLY of how many times you repeat the grains (0 to N times) which changes sound length.
Here is a sound made doing that. It plays each grain back ~1.43 times faster, but makes a sound that is the same length in the end. My ears can’t tell the difference, even though I do know there is one. This is the technique we’ll be using for the rest of the experiments.
https://demofox2.files.wordpress.com/2018/03/out_c_high.mp3
Here is a higher pitched sound that plays back each grain 2.5 times faster (1.0 / 0.4). https://demofox2.files.wordpress.com/2018/03/out_c_higher.mp3
You can use this to make the sound lower pitched as well. Here is a sound where we play the grains back at 0.77 speed (1.0 / 1.3). https://demofox2.files.wordpress.com/2018/03/out_c_low.mp3
Here they play back at 0.48 speed (1.0 / 2.1). https://demofox2.files.wordpress.com/2018/03/out_c_lower.mp3
Granular Synth Pitch and Length Adjustment
To really drive home how pitch and length adjustments can be made independent with granular synthesis, here is a sound where it plays back more slowly (130% as much time), but it plays back at a higher pitch (~1.43 times as high).
https://demofox2.files.wordpress.com/2018/03/out_d_slowhigh.mp3
And the opposite… here is the sound played back more quickly (70% as much time), but it plays back at a lower pitch (~0.77 times as high)
https://demofox2.files.wordpress.com/2018/03/out_d_fastlow.mp3
Dynamic Parameters
Something else fun is that the parameters don’t have to be fixed at runtime.
In the example code, I have a version of the granular synthesis function that calls back to a lambda for every grain to see what time and pitch multiplier it should use.
Here the pitch is on a 10 cycle sine wave going between 0.75 and 1.25. https://demofox2.files.wordpress.com/2018/03/out_e_pitch.mp3
Here the sound length is on a 13 cycle sine wave going between 0.5 and 2.5. https://demofox2.files.wordpress.com/2018/03/out_e_time.mp3
And lastly, here it combines the pitch and sound length parameters described above. https://demofox2.files.wordpress.com/2018/03/out_e_timepitch.mp3
Links
Below are some great links for more information about granular synthesis. I also recommend searching youtube for “granular synthesis examples” to hear some really out there stuff.
https://www.soundonsound.com/techniques/granular-synthesis
https://granularsynthesis.com/guide.php
https://theproaudiofiles.com/granular-synthesis/
I also want to mention that the basics of this technique was kindly described to me at lunch by a co-worker. His web page is at http://antonte.com/
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#DarkPolygon #planeVertex #shadowgeometry #AnalogBloc #GranularSynth #lookingthroughmyeyes #nicolasulloa
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The finished build. #red #groovesizer #idow #diy #granularsynth #8-bit #16stepsequencer
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It looks so awesome and it make stuff sounds even more awesome! 👽 . . . . . #output #spitfire #giveaways #plugin #granular #fx #fxplugins #music #edmproducer #electronicdancemusic #musicproducer #orchestra #granularsynth #woop #woopwoop #tuesday #tuesdays #tuesdayvibes #tuesdaymood #riograndevalley #ideas #new #newideas https://www.instagram.com/p/B5Uax85Hngy/?igshid=t0wymr7g6l7i
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🃏👌my granular synthesizer and it works🎆 #diysynth #granularsynth #synthporn #lovesynth #diy #instagood #myinspiration #instavideomusic https://www.instagram.com/p/BnRyaY5hiHp/?utm_source=ig_tumblr_share&igshid=ttan8q5wt629
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