Re: [313] tone shifting

2001-01-09 Thread Kent williams
On Tue, 9 Jan 2001, Kieran wrote:
> Has anyone ever produced any double vinyls of the same track with a1 being a
> particular track and c1 being the same track, but with the inverted phase 
> wave? When both a1 and c1 are perfectly mixed, the inverted and normal waves 
> should totally cancel each other out, and there should be (in theory) complete
> silence. Yet, as soon as they are pitch shifted/slightly out of phase, then
> the tune(s) should jump in.
> 
You could try it, but I doubt that you could keep it near enough in sync to
really cancel, and most of the time it would sound flanged, similar to how
rocking regular doubles sound.

The flanging of regular doubles comes from frequency dependent phase
cancellation.  You can phase cancel pure sine waves by offsetting one signal
exactly one cycle. But a complex signal -- like a Jeff Mills track --
is continuously changing, and slight offsets mean some frequencies cancel,
and some frequencies reinforce, so you get a comb filter effect.

What's REALLY interesting to a record geek like me is taking two different
records that are similar enough to phase cancel.  Chic's 'GoodTimes' and
Sugarhill Gang's 'Rapper's Delight' are like this -- RD recreated the Good
Times loop so precisely that when you line it up it flanges with the original.



Re: [313] tone shifting

2001-01-09 Thread Todd Smith

Kieran wrote:_
> Has anyone ever produced any double vinyls of the same track with a1 being
a particular track and c1 being the same track, but with the inverted phase
wave? When both a1 and c1 are perfectly mixed, the inverted and normal waves
should totally cancel each other out, and there should be (in theory)
complete silence. Yet, as soon as they are pitch shifted/slightly out of
phase, then the tune(s) should jump in. Just wondering, it would be an
interesting experiment.
___

Unfortunately this only works under extremely controlled situations ie.
perfectly noiseless mixing console with no pre-amp, truely matched needles,
noiseless, distortionless amp with no pre or post digital amplification.

More on the topic of toneshifting (actually a physics term coined long
before darw_n).

Toneshifting in the darw_nian sense, could be explained or perpetuated in
two ways:

1.  Take sense enhancing drugs

This will enhance your senses such that any reverberations from the room you
are in, along with the mindless chatter of  hundreds of people will
construct interesting new wave forms for your ears.

2. Be in a small group of people in a large auditory space, and stand at the
extremities of the soundspace.

Up close to the system you will find your ears drums lock up and sound
transmits through you (you are in fact standing before waveforms of up to
3000 Hz can form, therefore you only hear a small portion of them (resonant
form)  and then any reverberation of that sound.  Away from the system you
will hear more tones as waveforms cycle fully before hitting you, but they
also reverberate of other walls and such, enhancing your experience with all
sorts of phantom sounds (ie. music reverberating off of pipes and stages
etc.)

I spent a long time thinking about the "mental projection" aspect of
darw_n's theory, but this is nothing new.  We have been mentally projecting
on music since we were born.  Point in case  John Coltrane's "Blue Train":

I have a friend who used to listen to this album in the morning when he woke
up, and he said it was the best way to wake up, it refreshed and invigored
him, while I listened to this album fully through a break-up, and it makes
me sad to hear it all the time.

As for Richie playing emotionless music, this isn't true at all, he's simply
not playing soulful music ergo your friends comment 'Richie has no soul'.
Listen to DEFX909 again, there are tonnes of get up and party tracks on
there as well as a fair amount of moody music.


- Original Message -
From: "Kieran" <[EMAIL PROTECTED]>
To: "Kent williams" <[EMAIL PROTECTED]>
Cc: "313 list" <313@hyperreal.org>
Sent: Monday, January 08, 2001 9:36 PM
Subject: Re: [313] tone shifting


> On Mon, 8 Jan 2001, Kent williams wrote:
>
> ] In the context of DJ-ing, tone-shifting is what happens when you mix
> ] two records and new music emerges from the the interference between
> ] the two tracks.  It's a real phenomenon -- if you combine two signals
> ] they can interfere with each other -- technically 'phase cancellation'
> ] such that new tones become audible.
>
> This question is a little diverged from this topic, but when talking about
> phase varience and "interference", I have the following question:
>

>
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Re: [313] tone shifting

2001-01-09 Thread Kieran
On Mon, 8 Jan 2001, Kent williams wrote:

] In the context of DJ-ing, tone-shifting is what happens when you mix
] two records and new music emerges from the the interference between
] the two tracks.  It's a real phenomenon -- if you combine two signals
] they can interfere with each other -- technically 'phase cancellation'
] such that new tones become audible.

This question is a little diverged from this topic, but when talking about
phase varience and "interference", I have the following question:

Has anyone ever produced any double vinyls of the same track with a1 being a
particular track and c1 being the same track, but with the inverted phase 
wave? When both a1 and c1 are perfectly mixed, the inverted and normal waves 
should totally cancel each other out, and there should be (in theory) complete
silence. Yet, as soon as they are pitch shifted/slightly out of phase, then
the tune(s) should jump in.

Just wondering, it would be an interesting experiment.


Kieran.



Re: [313] Tone shifting

2000-10-04 Thread Nick Walsh
> I used to work at a Kinko's and I found that
> environment was a rich source 
> of metal on metal beats. Folding machines, multiple
> large Xerox machines 
> churning out copies wich big "ka-chung" sounds, the
> hum of computers, staple 
> machines, the high pitch "zip" sound of color
> copiers
> it was the only redeeming character of that place.
> I made several poor quality tapes of the sounds for
> future use.

This is good... I like these robotic machine noise
samples... Has anyone got any sound from, eg,
hydraulic or pneumatic
machines/vehicles(cranes/diggers etc), robots (car
factory or other automated production line sounds)...
I want some tapes... I'm not weird am I? LOL

Nick (Dj Pacific:)

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Re: [313] Tone shifting

2000-10-04 Thread FRED MCMURRY

Re:


It also occurs while on the train, in a room full of computers, or
wherever there is a repetitive sound. Thats why I like riding
trainsthere so much music to be heard!!



Anyway, amongst others, there was one that said "you know you're a
raver/techno freak when you find yourself nodding your head to th
tribal sounds of a washing machine".


I used to work at a Kinko's and I found that environment was a rich source 
of metal on metal beats. Folding machines, multiple large Xerox machines 
churning out copies wich big "ka-chung" sounds, the hum of computers, staple 
machines, the high pitch "zip" sound of color copiers

it was the only redeeming character of that place.
I made several poor quality tapes of the sounds for future use.

Fred




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Re: [313] Tone shifting

2000-10-04 Thread Nick Walsh
My mum reckons that when I play the Sonic EP in my
bedroom it sounds like a foundry downstairs:) NO
kidding!!!

l8r,
Nick (Dj Pacific:) 
--- [EMAIL PROTECTED] wrote: > In a message dated
04/10/00 10:43:27 GMT Daylight
> Time, [EMAIL PROTECTED] 
> writes:
> 
> > I can't rememer with who it was that originally
> stated that tone shifting is
> >  a mechanism of the brain that *fills* in the gaps
> in highly repetitive
> >  music, but I agree with him and have to add that
> this fenomenon doesn't
> >  occur only while listening to music, whether it
> be minimal techno or tribal
> >  beats. It also occurs while on the train, in a
> room full of computers, or
> >  wherever there is a repetitive sound. Thats why I
> like riding
> >  trainsthere so much music to be heard!!
> 
> I once saw this list called "you know your a raver
> when..." and it then 
> listed 101 reasons you could tell your a raver. 
> Well, some people might be 
> offended to be called ravers, I for one dont
> generally call myself one, but 
> for some of these reasons you could easily replace
> raver with "techno freak" 
> or something along those lines.  Anyway, amongst
> others, there was one that 
> said "you know you're a raver/techno freak when you
> find yourself nodding 
> your head to the tribal sounds of a washing
> machine".  Maybe this isn't 
> toneshifting as discussed on the list, but its
> definately a case of a bored 
> mind projecting music onto something which isn't
> necessarily musical, and I 
> find it to be quite true.  Sort of like working in
> factory's, many times have 
> I considered taking my MD recorder to work with me
> to try and capture the 
> seemingly musical hum and machine noise that is the
> background noise of a 
> busy factory.
> 
> Aaron
> 
>
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> To unsubscribe, e-mail:
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Re: [313] Tone shifting

2000-10-04 Thread arora
ever tried chilling to a coffee percolator?  i used to spend my mornings 
up at biostation, relaxing to the sweet sounds of our large coffee
percolator.

-m

On Wed, 4 Oct 2000, fab137 wrote:

> I can't rememer with who it was that originally stated that tone shifting is
> a mechanism of the brain that *fills* in the gaps in highly repetitive
> music, but I agree with him and have to add that this fenomenon doesn't
> occur only while listening to music, whether it be minimal techno or tribal
> beats. It also occurs while on the train, in a room full of computers, or
> wherever there is a repetitive sound. Thats why I like riding
> trainsthere so much music to be heard!!
> 
> later,
> fab
> 
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Re: [313] Tone shifting

2000-10-04 Thread Revaron
In a message dated 04/10/00 10:43:27 GMT Daylight Time, [EMAIL PROTECTED] 
writes:

> I can't rememer with who it was that originally stated that tone shifting is
>  a mechanism of the brain that *fills* in the gaps in highly repetitive
>  music, but I agree with him and have to add that this fenomenon doesn't
>  occur only while listening to music, whether it be minimal techno or tribal
>  beats. It also occurs while on the train, in a room full of computers, or
>  wherever there is a repetitive sound. Thats why I like riding
>  trainsthere so much music to be heard!!

I once saw this list called "you know your a raver when..." and it then 
listed 101 reasons you could tell your a raver.  Well, some people might be 
offended to be called ravers, I for one dont generally call myself one, but 
for some of these reasons you could easily replace raver with "techno freak" 
or something along those lines.  Anyway, amongst others, there was one that 
said "you know you're a raver/techno freak when you find yourself nodding 
your head to the tribal sounds of a washing machine".  Maybe this isn't 
toneshifting as discussed on the list, but its definately a case of a bored 
mind projecting music onto something which isn't necessarily musical, and I 
find it to be quite true.  Sort of like working in factory's, many times have 
I considered taking my MD recorder to work with me to try and capture the 
seemingly musical hum and machine noise that is the background noise of a 
busy factory.

Aaron


Re: [313] Tone shifting

2000-10-04 Thread Glyph1001

In a message dated 10/4/00 4:43:36 AM, [EMAIL PROTECTED] writes:

>I can't rememer with who it was that originally stated that tone shifting
>is
>
>a mechanism of the brain that *fills* in the gaps in highly repetitive
>
>music, but I agree with him and have to add that this fenomenon doesn't
>
>occur only while listening to music, whether it be minimal techno or tribal
>
>beats. It also occurs while on the train, in a room full of computers,
>or
>
>wherever there is a repetitive sound. Thats why I like riding
>
>trainsthere so much music to be heard!!


yeah or listening to techno while sitting at the front of the train watching 
the lights in the tunnel go by or even the city if it is elevated...techno 
and motion...what a combo!

G l y p h


RE: [313] tone-shifting while tired

2000-09-27 Thread tristan watkins
Taking the toneshifting phenonmenon to its logical
extreme, if you sent enough emails to Johanna Thompson
would they eventually begin to generate autorepsonses?


Sorry. I had to do it. Just had to. I know it's not
really a funny situation. 

Tristan


--- [EMAIL PROTECTED] wrote:
> 
> toneshifting...
> 
> It's very cool stuff...definitely bringing out a
> unique feature of our
> mind,
> but you can't really shake your ass to it like you
> can with the Surgeon =]
> 
> t o double d
> set.go.recordings
> 
> ++
> 
> this discussion is really beginning to tire me, but
> the following just
> occurred to me:
> 
> when you reach a certain amount of feet under water,
> only a small portion
> of the spectrum of light penetrates. effectively you
> can only physically
> see black and white, because the other colors are
> not present.
> nevertheless, you perceive color because your brain
> inserts color where
> there is none in order to bring your environment
> more in line with what it
> thinks it should be...
> 
> it seems plausible that toneshifting  is merely the
> audio equivalent of
> this process. in a stark environment (in this case,
> with very few sounds,
> rather than few colors) the brain attempts to insert
> melody because that is
> what it thinks should be there. perhaps an effort to
> maintain balance or
> status quo, familiarity, normalcy, etc.
> 
> blah, blah...
> h
> 
> 
>
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> To unsubscribe, e-mail:
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