On 5/19/14 10:01 PM, Sampo Syreeni wrote:
On 2014-05-08, Risto Holopainen wrote:
[...] I recall a composer collegue once complaining about repetition
in the noise generator of Csound. I think they used a random
generator with period 2^16 in those days, but it's been improved now.
That's
On May 11, 2014, at 7:42 PM, Sampo Syreeni de...@iki.fi wrote:
On 2014-05-08, Nigel Redmon wrote:
The bottom line, I think, is that yes white noise is random, but the low
frequency components are, well, low frequency.
You can't here 1Hz though, evenif you can hear its contray 1s repeat
On 2014-05-08, Theo Verelst wrote:
About the noise, I'll say it only one time: IS YOUR NOISE SOURCE BANDWIDTH
LIMITED, [...]
This sort of thing is precisely why I left it for you and everybody else
to produce. By yourselves. So that only yourself is then to blaim.
It really doesn't matter
On 2014-05-08, robert bristow-johnson wrote:
where the RNG for the dither is derived from the LSBs of the last N
quantized words?
The parity of the last few words as whole. That's because parity/xor has
been proven to be an optimal randomness extractor in this sort of thing,
and even if it
Datapoint: I just tried repeating a ~1 sec brown noise clip in Audacity and
I'm not sure if I get that choo choo effect. It sounds pretty
continuous to me. However, I think this requires ABX testing in order to
make sure.
On Thu, May 8, 2014 at 8:14 PM, Nigel Redmon earle...@earlevel.com wrote:
My two cents as a person in the field:
the human hearing system is kind of an LTI... only at very low level
processing. The consistency of measured signal (= perceiving the same
signal the same way at all time as somebody wrote here) is present in
the ear canal up to brainstem - inferior
As someone already pointed out, spend an evening to hack a website for this.
Otherwise I just don’t feel like it’s worth the hassle, this is why-oh-why I
don’t.
Stefan
On 08 May 2014, at 7:25 , Sampo Syreeni de...@iki.fi wrote:
Yet why-oh-why doesn't anybody just pop up their Audacity and a
I'd recommend Intelligence by Jeff Hawkins for some thought-provoking insights
into high-level perceptual processing in the brain.
Richard
On 8 May 2014, at 06:59, Enr G e.glerean@gmail.com wrote:
My two cents as a person in the field:
the human hearing system is kind of an LTI...
If there, by chance, happens to be a feature in the noise that
catches the ear and creates a sort of (possibly first subconscious)
memory, then the choo-choo effect will be more audible as that feature
can be more easily recognized again, reinforcing the memory. I
generated 10 seconds of Gaussian
On 2014-05-08, Olli Niemitalo wrote:
Sampo's test should be carried out multiple times to gather
statistics, and because repetition will aid in reinforcement of the
memory, also the number of repetitions should be controlled or
recorded. How about tap to the rhythm of it?
Or, more to the
It may be fine to think of the ear as doing a Fourier transform as a first,
crude approximation. For a more accurate description however, some nonlinear
effects would have to be considered. And some of this already happens in the
ear.
As for hearing being LTI, think about forward and backward
Small correction:
the correct name is MM5837, which is a 16 bit shiftregister device. It’s bad
but can be replaced by the MM5437, a 23 bit device which can be clocked
externally and has a much longer period.
Steffan
On 08 May 2014, at 07:35, STEFFAN DIEDRICHSEN sdiedrich...@me.com wrote:
I bounced some 100 secs of noise taken from the test oscillator in Logic Pro.
Loaded this in the IRU and did some cycling.
My finding: There are portions in the noise, that allows me to go down to 2
seconds and it still sounded like straight (un-looped) noise. Other noise
portions had
Does learning count as a non-linearity?
Agus, T.R., Pressnitzer, D. (2013). The detection of repetitions in noise
before and after perceptual learning. Journal of the Acoustical Society of
America, 134(1), 464-473.
http://lpp.psycho.univ-paris5.fr/abstract.php?id=3564
On Thu, May 8, 2014 at 12:59 AM, Enr G e.glerean@gmail.com wrote:
My two cents as a person in the field:
the human hearing system is kind of an LTI...
LTI is a very specific thing. It's not sort of, kind of, LTI--it's
just either LTI or not.
only at very low level
processing. The
It would appear to me that the human hearing system is an LTI system.
It doesn't react in a linear fashion to frequency or loudness, but it
perceives
the same signal the same way at all times, disregarding aging, hearing
loss, etc.
One of the easiest ways to see that hearing must be nonlinear is
the human hearing system is kind of an LTI... only at very low level
processing. The consistency of measured signal (= perceiving the same
signal the same way at all time as somebody wrote here) is present in
the ear canal up to brainstem - inferior colliculus.
My understanding is that there are
Having quickly browsed over this subject, think about it that it
normally isn't needed to do more than be accurate enough when dealing
with audio and the human hearing, unless you want to explicitly deal
with Loudness Curve sensitivity, or exotic subjects like creating stereo
images for
This is going to sound pretty weird, I'm sure, but could as many people
on-list perform the following experiment on themselves and their close
ones, as possible? Then report back (privately, so as not to ruin the
surprise for everybody else?)
Take a long (at least 30 seconds and possibly
What is this LTI theory of human hearing you speak of?
--
eric zhang
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)
On Wednesday, May 7, 2014 at 8:39 PM, Sampo Syreeni wrote:
This is going to sound pretty weird, I'm sure, but could as many people
on-list perform the following
With some of the modern web technologies (esp WebAudio API), such an
experiment could be easily deployed onto a web-page, with users inputting
their answers into the page to be processed analyzed.
Just an idea.
-Chinmay
On Thu, May 8, 2014 at 8:39 AM, Sampo Syreeni de...@iki.fi wrote:
Take a
Should standardize the sampling rate as well. With an infinite sampling rate
and your method, you'd have something like a pure broadband tone, right?
On May 7, 2014, at 5:39 PM, Sampo Syreeni de...@iki.fi wrote:
This is going to sound pretty weird, I'm sure, but could as many people
I've never heard this phenomenon myself, but I am familiar with it. It is a
psychoacoustic phemonen, and I've heard it referred to as choo-chooing,
though when I just googled for that I got nothing related, so maybe that's
just a colloquial term amongst the engineers I know. I've never come across
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