On Mon, Jun 27, 2011 at 08:16:39PM +, Fons Adriaensen wrote:
> The way apps like e.g. zita-at1 do this is to estimate the
> pitch (fundamental frequency) of the signal and either skip
> or jump ahead an integral number of cycles with a crossfade.
Correction: skip or jump *back* an integral nu
On Mon, Jun 27, 2011 at 02:35:23PM +0200, pshir...@boosthardware.com wrote:
> Would this result in some kind of reverb type effect as Fons suggested?
One of them would sound like a resonance, it would 'smear out' some
frequency bands. Many of them combined could be made to sound like a
reverb. Su
On 06/27/2011 02:35 PM, pshir...@boosthardware.com wrote:
pshir...@boosthardware.com wrote:
I'm looking for a way to adjust the phase of a signal rather than the
amplitude. Does such a plugin already exist? If not which ladspa plugin
would be the most suitable to start from?
check out the av
> pshir...@boosthardware.com wrote:
>
>> > - Absolute phase response *does* matter. It's quite
>> > easy to create e.g. a filter that has a perfectly flat
>> > amplitude response, modifies only the phase, and sounds
>> > as a e.g. a resonance or even a reverb. You won't hear
>> > the relatively har
On the subject of the word Quadrature:
The word Quadrature is shorthand for the imaginary component of a
complex-valued variable. Furthermore, it is almost exclusively used in
the domain of carrier modulated waveforms. The word for the real
component is In-Phase. That is why so many texts on t
On Sun, 26 Jun 2011 14:54:48 -0400
gene heskett wrote:
> I do not see how a repeatable, and therefore measurable quadrature
> component can be developed in a complex, multi-frequency waveform since the
> quadrature component is just as frequency dependent as any other method of
> measurement.
On Sun, Jun 26, 2011 at 02:54:48PM -0400, gene heskett wrote:
> I do not see how a repeatable, and therefore measurable quadrature
> component can be developed in a complex, multi-frequency waveform since the
> quadrature component is just as frequency dependent as any other method of
> measur
On Sunday, June 26, 2011 02:48:01 PM Gordon JC Pearce did opine:
> On Sat, 25 Jun 2011 16:23:29 +0200 (CEST)
>
> pshir...@boosthardware.com wrote:
> > Hi,
> >
> > Can anyone point me to a simple code example for how to determine the
> > phase at a specific time in a waveform?
> >
> > ex. if I h
On 06/26/2011 10:13 AM, pshir...@boosthardware.com wrote:
On Sat, 25 Jun 2011 16:23:29 +0200 (CEST), pshir...@boosthardware.com
wrote:
Hi,
Can anyone point me to a simple code example for how to determine the
phase at a specific time in a waveform?
ex. if I have a sample that is 5 seconds long
On Sunday 26 June 2011 18:05:12 Jörn Nettingsmeier wrote:
> On 06/26/2011 05:47 PM, Arnold Krille wrote:
> > On Sunday 26 June 2011 11:58:54 Jörn Nettingsmeier wrote:
> >> On 06/26/2011 10:50 AM, pshir...@boosthardware.com wrote:
> Other than that, I'd make a really cool spectrum analyzer that
On 06/26/2011 05:47 PM, Arnold Krille wrote:
On Sunday 26 June 2011 11:58:54 Jörn Nettingsmeier wrote:
On 06/26/2011 10:50 AM, pshir...@boosthardware.com wrote:
Other than that, I'd make a really cool spectrum analyzer that ran the
Fourier analysis on two channels, correlated their phases then
On Sunday 26 June 2011 11:58:54 Jörn Nettingsmeier wrote:
> On 06/26/2011 10:50 AM, pshir...@boosthardware.com wrote:
> >> Other than that, I'd make a really cool spectrum analyzer that ran the
> >> Fourier analysis on two channels, correlated their phases then made a
> >> +/- line vs. frequency fo
On Sat, 25 Jun 2011 16:23:29 +0200 (CEST)
pshir...@boosthardware.com wrote:
> Hi,
>
> Can anyone point me to a simple code example for how to determine the
> phase at a specific time in a waveform?
>
> ex. if I have a sample that is 5 seconds long and want to know the phase
> at 2.5 seconds
>
>
On Sun, Jun 26, 2011 at 10:44:33AM +0200, pshir...@boosthardware.com wrote:
> I think you understood what I am looking for below.
Unfortunately, I can only guess what the context of
your question was, and I'd probably be wrong :-(
> Does anyone have a code example for this type of filter?
The
On Sun, Jun 26, 2011 at 11:43:46AM +0200, Jörn Nettingsmeier wrote:
> On 06/26/2011 04:17 AM, Fons Adriaensen wrote:
>> On Sun, Jun 26, 2011 at 12:22:58AM +0200, Jörn Nettingsmeier wrote:
>
>> - Phase is related to delay but it is not the same thing.
>> Group delay is again something different. Mix
pshir...@boosthardware.com wrote:
> > - Absolute phase response *does* matter. It's quite
> > easy to create e.g. a filter that has a perfectly flat
> > amplitude response, modifies only the phase, and sounds
> > as a e.g. a resonance or even a reverb. You won't hear
> > the relatively harmless ph
On 06/26/2011 10:50 AM, pshir...@boosthardware.com wrote:
So, perhaps any Haas-effect plugin would satisfy Patrick's needs.
so this is about panning? that's actually pretty easily done with just a
time delay in addition to level difference. unless you want to spread
complex sounds out in spac
On 06/26/2011 04:17 AM, Fons Adriaensen wrote:
On Sun, Jun 26, 2011 at 12:22:58AM +0200, Jörn Nettingsmeier wrote:
- Phase is related to delay but it is not the same thing.
Group delay is again something different. Mixing up all
these is not going to help anyone understand things any
better.
> On Sat, 25 Jun 2011 16:23:29 +0200 (CEST), pshir...@boosthardware.com
> wrote:
>> Hi,
>>
>> Can anyone point me to a simple code example for how to determine the
>> phase at a specific time in a waveform?
>>
>> ex. if I have a sample that is 5 seconds long and want to know the
>> phase
>> at 2.5
> From the long list of answers, I see lots of speculation about Mr.
> Shirkey's question. Some time back he approached me on the work that had
> been done a very long time ago on phase-modulation to achieve panning.
> He never replied to my subsequent information or queries.
Sorry about that. Be
> On Sun, Jun 26, 2011 at 12:22:58AM +0200, Jörn Nettingsmeier wrote:
>
>> it seems you have just proven that the maximum duration of any pure tone
>> is 1/f. that is quite extraordinary.
>
> 0.5 / f actually, which is extraextraordinary.
>
> Both Joern and I have invited the original poster to
> e
From the long list of answers, I see lots of speculation about Mr.
Shirkey's question. Some time back he approached me on the work that had
been done a very long time ago on phase-modulation to achieve panning.
He never replied to my subsequent information or queries. I suspect that
this questi
On Sun, Jun 26, 2011 at 12:22:58AM +0200, Jörn Nettingsmeier wrote:
> it seems you have just proven that the maximum duration of any pure tone
> is 1/f. that is quite extraordinary.
0.5 / f actually, which is extraextraordinary.
Both Joern and I have invited the original poster to
explain more
2011/6/26 Gabriel M. Beddingfield :
>
> *headdesk*. Yes... should have been the half-amplitude of
> the signal... p = asin( 2*x / A )
> I.e. MAX = A/2 and MIN = -A/2
>
?
Try with
φ = ∆t * f * 2π(rad)
--
φ = 1s * 1Hz * 2π => 2π (rad)
φ = 0.5s * 1Hz * 2π => 1
On Saturday, June 25, 2011 05:04:43 pm Emanuel Rumpf wrote:
> >> Assuming yes:
> >>
> >> p = asin( x / A )
> >>
> >> Where:
> >>
> >> A is the amplitude of the sine wave
>
> you mean the maximal amplitude (-MAX <= x <= +MAX) , I
> guess ?
*headdesk*. Yes... should have been the half-ampli
On Sat, 25 Jun 2011 16:23:29 +0200 (CEST), pshir...@boosthardware.com wrote:
Hi,
Can anyone point me to a simple code example for how to determine the
phase at a specific time in a waveform?
ex. if I have a sample that is 5 seconds long and want to know the
phase
at 2.5 seconds
I'm open to cod
On Sun, 26 Jun 2011 00:22:58 +0200
Jörn Nettingsmeier wrote:
> that's where delay becomes "group delay", i.e. the same constant time
> delay implies different phase angles depending on frequency, pretty much
> arbitrarily large as the frequency rises.
Bingo!
Which is why it is quite insane for
2011/6/26 Emanuel Rumpf :
> since x <= A (always),
better:
abs( x ) <= abs( A )
> that result is not possible,
with that function at least
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On 06/26/2011 12:04 AM, Emanuel Rumpf wrote:
2011/6/25 Fons Adriaensen:
On Sat, Jun 25, 2011 at 01:55:05PM -0500, Gabriel M. Beddingfield wrote:
Do you mean... for a very simple sine wave?
Assuming yes:
p = asin( x / A )
Where:
A is the amplitude of the sine wave
you mean the maxim
2011/6/25 Fons Adriaensen :
> On Sat, Jun 25, 2011 at 01:55:05PM -0500, Gabriel M. Beddingfield wrote:
>
>> Do you mean... for a very simple sine wave?
>>
>> Assuming yes:
>>
>> p = asin( x / A )
>>
>> Where:
>>
>> A is the amplitude of the sine wave
you mean the maximal amplitude (-MAX <= x <
On Saturday, June 25, 2011 02:49:39 pm Fons Adriaensen
wrote:
> > p is the phase of the wave in radians (-pi/2 <= p <=
> > pi/2)
>
> And what if the phase is < -pi/2 or > +pi/2 ?
then you set phasers to stun. :-p
Hey, at least I pointed out the limitation
-gabriel
_
On Sat, Jun 25, 2011 at 01:55:05PM -0500, Gabriel M. Beddingfield wrote:
> Do you mean... for a very simple sine wave?
>
> Assuming yes:
>
> p = asin( x / A )
>
> Where:
>
> A is the amplitude of the sine wave
> x is the value of the sample (-A <= x <= A)
> p is the phase of the wave
On Sat, Jun 25, 2011 at 04:23:29PM +0200, pshir...@boosthardware.com wrote:
> Can anyone point me to a simple code example for how to determine the
> phase at a specific time in a waveform?
>
> ex. if I have a sample that is 5 seconds long and want to know the phase
> at 2.5 seconds
>
> I'm open
On Saturday, June 25, 2011 09:23:29 am
pshir...@boosthardware.com wrote:
> Hi,
>
> Can anyone point me to a simple code example for how to
> determine the phase at a specific time in a waveform?
>
> ex. if I have a sample that is 5 seconds long and want to
> know the phase at 2.5 seconds
>
> I'
On 06/25/2011 04:23 PM, pshir...@boosthardware.com wrote:
Hi,
Can anyone point me to a simple code example for how to determine the
phase at a specific time in a waveform?
ex. if I have a sample that is 5 seconds long and want to know the phase
at 2.5 seconds
talking about the "phase" at some
Hi,
Can anyone point me to a simple code example for how to determine the
phase at a specific time in a waveform?
ex. if I have a sample that is 5 seconds long and want to know the phase
at 2.5 seconds
I'm open to code in any language or a scripted example if such a tool
exists. If there is an u
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