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Author Topic: Clock implementation for convolution DSP  (Read 837 times)

ST

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Clock implementation for convolution DSP
« on: May 25, 2018, 10:41:37 pm »


I am not sure where this topic should go.

Anyway, it appears to me that the convolution DSP clock is tied to the main audio. My understanding is convolution DP should be independent of the main clock so that the decay works correctly. This is the typical implementation in DAW and my experience with SIR2 VST with JRiver and in Audiomulch is day and night difference as the extended 2 seconds decay seemed impossible to achieve within JRiver DSP.

Hope you could rectify it. Thank you.
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1970Goat

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Re: Clock implementation for convolution DSP
« Reply #1 on: May 26, 2018, 01:25:54 am »

one i went to your site and checked out your deal and i see where your point   true be told unless your a dog 94%  for the people can't hear that level of change   ie the average person 20 to 20,000 Hz and that's assuming u weren't military ,  worked in a factory back in the day with no noise protection and of course rock n roll at an ungodly db. the diff you are fretting over is in the category.of a mom remotely listening in on a newborn. to ask JRiver to combat an industry standard of certain formats Mp 3,apc, ape just to name a few given a bit but at some point, u have to say enough 320 sampling rate a sec is the same as using a needle to listen a 33rpm 45rpm and a 78rpm record on vinyl   (you no your going to hear snap, crackle, pop). you can't ask them to circumvent industry standards. it's just not a reasonable thing to ask. I consider my hearing exceptional and I have been an audio buff most of my adult life. when i was younger 10 Hz to 24k Hz now at my age now my last test says as dec 17 35 Hz to 19K HZ. you can achieve Clock implementation for convolution DSP But spend the bucks to get the THD out of your system on your end and if you still find that it's still there then you can ask for the man hours and we are talking a lot of hours. that a 29.95 software program just can't absolve. you feel me, dude. Man 25 years ago I was you. But if not convolution
would be an approach that initially clarifies a subject
relating to the frequency spectrum of linear networks.
Determining the frequency spectrum or frequency transfer
a function of a linear network provides one with the knowledge
of how a network will respond to or alter an input
signal. Conventional methods used to determine this entail
the use of spectrum analyzers which use either sweep generators
or variable-frequency oscillators to impress upon a
network all possible frequencies of equal amplitude and
equal phase.
The response of a network to all frequencies can thus be
determined. Any amplitude and phase variations at the output
of a network are due to the network itself and as a result
define the frequency transfer function.
Another means of obtaining this same information would be
to apply an impulse function to the input of a network and
then analyze the network impulse-response for its spectral frequency
content. Comparison of the network-frequency
transfer function obtained by the two techniques would yield
the same information.
This is found to be easily understood (without elaborate experimentation)
if the implications of the impulse function are
initially clarified.
If the pulse of Figure 1a is examined, using the Fourier integral,
its frequency spectrum is found to be
F(0) e
#
%
b% f(t) f bj0t dt (1)
e
#
T/2
bT/2 A f bj0t dt (2)
F(0) e AT %
sin #
0T
2 J
#
0T
2 J –   and if that's not convincing If the input to a network, Figure 2, having a transfer function
H(0) is an impulse function e(t) at te0, its Fourier transform
using eq(1) can be found to be F(0)e1.
The output of the network G(0) is therefore
G(0) e H(0) # F(0)
G(0) e H(0)
The inverse transform is
g(t) e h(t)
and h(T) is defined as the impulse response of the network
as a result of being excited by a unit impulse time function at
te0.
Extending this train of thought further, the response of a
network to any input excitation can be determined using the
same technique.   $29.95  now do you feel me?  it's not a reasonable thing to ask support to address at this time
maybe 50 million buyers and a huge swelling of hiring a super hype in price. and yea they probably could address it
but the FCC would be like OFF WITH THEIR HEADS. the game is rigged so the little guys stay little. US Patent would
wanna a piece as well. Spend the bucks Guy

Your living in a dream NEO - The Matrix has you
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~OHM~

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Re: Clock implementation for convolution DSP
« Reply #2 on: May 26, 2018, 05:11:56 am »

Your living in a dream NEO - The Matrix has you
nice car...what color....my guess would be baby blue with a white interior
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ST

  • Junior Woodchuck
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  • Posts: 85
Re: Clock implementation for convolution DSP
« Reply #3 on: May 26, 2018, 07:48:14 pm »

one i went to your site and checked out your deal and i see where your point   true be told unless your a dog 94%  for the people can't hear that level of change   ie the average person 20 to 20,000 Hz and that's assuming u weren't military ,  worked in a factory back in the day with no noise protection and of course rock n roll at an ungodly db.

...

Thank you but totally irrelevant. When you use the convolution DSP in JRiver and with other live performance software then you will hear the difference.
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ST

  • Junior Woodchuck
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  • Posts: 85
Re: Clock implementation for convolution DSP
« Reply #4 on: May 26, 2018, 08:48:59 pm »


Quoting from Audiomulch “Some contraptions are not dependent on the clock, but may optionally use it.”

Convolution is one of them where the clock need not be dependent so that when you press pause the music will still continue to decay by the amount indicated in the impulse response.
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