[PD] analysis before synthesis: How?

brandt at subnet.at brandt at subnet.at
Sun Mar 7 17:14:03 CET 2010


hi

maybe you could send us the sample?

best regards



> Hi William,
>
>  no, unfortunately no theremin...I fear, it is not even a synthesizer
>  sound but of "natural" origin...
>
>  Am I "lost in synthesis" ?
>
>
> In a world without fences and walls nobody needs gates and windows.
> William Brent <william.brent at gmail.com> [10-03-07 16:08]:
>> If the scifi-sound is a theremin, there's a good chance that you could
>> have decent success using sigmund~ to follow spectral peaks over a
>> certain volume, and resynthesize by sending the frequency/amplitude
>> information to a bank of oscillators.  It'll help to know something
>> about how spectral analysis works to find the best values for window
>> size and hop, but sigmund~ makes things as easy as possible.
>>
>> The other option that might be worth a shot is Audacity's "Noise
>> Removal" effect.  You select a region of the file that is just noise
>> to train it, then process the noise removal.  From the few times I've
>> used it, I've gotten results ranging from laughable to passable.  It
>> completely depends on the nature of the signal and noise components
>> you're dealing with.
>>
>>
>> Good luck,
>> William
>>
>>
>> On Sun, Mar 7, 2010 at 5:50 AM,  <meino.cramer at gmx.de> wrote:
>> >
>> > Hi,
>> >
>> > this is more a general question:
>> > I have a "piece of sound" (sorry, English is not my mothers tonque...)
>> > which conatins beside background noise a scifi-sound, which I want to
>> > synthezise ("synthesise"?) with puredata as close to the original as
>> > possible -- without the background.
>> >
>> > Now I am looking for recipe to do such a thing -- without the need of
>> > a supercomputer and without the deep deep knowledge of really deep
>> > math.
>> >
>> > Is there a way to supress the backgroudn as much as possible?
>> > Would it be make sense to make a fourier analysis with a tool (what
>> > tool -- I am using puredata on Gentoo-Linux)? Are there others
>> > tool, which would help me to solve this task?
>> >
>> > Any idea and help are very appreciated -- thanks a lot in advance!
>> >
>> > best regards and have a nice sunday!
>> > mcc
>> >
>> > --
>> > Please don't send me any Word- or Powerpoint-Attachments
>> > unless it's absolutely neccessary. - Send simply Text.
>> > See http://www.gnu.org/philosophy/no-word-attachments.html
>> > In a world without fences and walls nobody needs gates and windows.
>> >
>> >
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>>
>>
>> --
>> William Brent
>> www.williambrent.com
>>
>> â&#65533;&#65533;Great minds flock togetherâ&#65533;&#65533;
>> Conflations: conversational idiom for the 21st century
>>
>> www.conflations.com
>>
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>
> --
> Please don't send me any Word- or Powerpoint-Attachments
> unless it's absolutely neccessary. - Send simply Text.
> See http://www.gnu.org/philosophy/no-word-attachments.html
> In a world without fences and walls nobody needs gates and windows.
>
>
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