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Started March 13th, 2010 · 15 replies · Latest reply by jezon2000 13 years, 11 months ago
I'm new to convolution/impulse response stuff and freesound, and I'm wondering if anyone has tried recording impulse response samples using a hydrophone? Or making impulse responses to help simulate a water-like sound? I'm looking to find a way to create some kind of underwater filter/convolution reverb that would give a synth pad and other samples a very underwatery, but clear sound... I suppose I could try taking existing impulse response samples and trying to manipulate those to acheive a similar effect, but one thing I'm really interested in is the way sound bends a bit when water is rolled around a metal pan. Anybody tried something along the lines I'm talking about or have ideas on a good approach?
Thanks!
jezon2000
... I'm really interested in is the way sound bends a bit when water is rolled around a metal pan.
jezon2000
I'm trying to applying that watery effect as a kind of reverb that can be used for any instrument like glockenspiel, for example.
Make a second identical glockenspiel track and apply reverb and Random Pitch Modulation to it*, then mix this effected track with the original.
[ * maybe add random wah-wah too ].
The description "water rolling around in a pan" makes me think of a sound like a Tibetan singing bowl (found several video/audio examples on YouTube) - may have to try converting that sound into an impulse response file myself just to see...
I tried to re-create sounds like these:
http://www.freesound.org/samplesViewSingle.php?id=34852
but I'm not enough expert. some flangers worked but in random way.
(and to me the Random Pitch Modulation page is Martian slang)
cajo
I tried to re-create sounds like these:
http://www.freesound.org/samplesViewSingle.php?id=34852
(I hope to go not too far from jezon2000 topic...)
Timbre, cool processing: is it a pitch bend?
in Ableton Live I use flanger: the swirling tail appear with a delay time around 7ms and a feedback of 0.98, LFO with soft shape at 85% amount and phase at 180°, envelope attack 6ms and release 200ms (I know nothing about sound synthesis, able only to write down the values)
the result is good in quality but with unpredictable variations.
as Timbre suggests, the swirling tail is similar to theremin.
I apologize for being so confuse, I'm an hobbyist...
cajo
Timbre, cool processing: is it a pitch bend?
The "Martian" phrase "random frequency modulation" can be translated into English as random pitch bending.
The pitch bending caused by the water in the pan isn't totally random: it oscillates (LFO) as the water moves back and forth.
Timbrejezon2000
I'm trying to applying that watery effect as a kind of reverb that can be used for any instrument like glockenspiel, for example.
For the water-in-a-pan effect possibly random pitch warping, there's a free plugin for Audacity which does that: "Random Pitch Modulation".Make a second identical glockenspiel track and apply reverb and Random Pitch Modulation to it*, then mix this effected track with the original.
[ * maybe add random wah-wah too ].
Sorry I've been away, this is a great suggestion, but it will take me a bit to figure out. This plus some good flanger and automation should get the job done. Awesome water-in-pan sample cajo! Thanks for all the great responses!
I'm going to try applying some of these ideas to some pads as well to try and create a watery atmosphere.
Cheers!
Timbre
The pitch bending caused by the water in the pan isn't totally random: it oscillates (LFO) as the water moves back and forth.
Hi there,
I've tried using a few underwater samples (ie. bubbles) as IRs in Altiverb, but what they mostly turn into is a really long echoey reverb. Which could be cool, depending on what you're going for.
I've done it. pretty successfully. Find the sound of some object being thrown into water, preferably from the perspective of underwater. make sure it is a fairly short sample, with the majority of the sound being maybe a second or two long and a tail of 3 or 4 seconds. Use this sound as your impulse response. Should work super well for a glock... BUT before you run your reverb first eq the sound: bring up around the 500 band. I also used a denoiser filter but set the threshold too high for a kind of spectral effect, use a filter that responds to volume if that doesn't work well enough. Maybe a bit of tremolo, and THEN your convolution and you should be golden.
-Jeremy
(annoying) tune played using a processed version of Cajo's water-in-a-pan sample ...