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SPEAR
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aquanaut



Joined: Apr 25, 2004
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PostPosted: Sat Dec 17, 2005 2:20 pm    Post subject: SPEAR
Subject description: Sinusoidal Partial Editing Analysis and Resynthesis
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Introduction

SPEAR is an application for audio analysis, editing and synthesis. The analysis procedure (which is based on the traditional McAulay-Quatieri technique) attempts to represent a sound with many individual sinusoidal tracks (partials), each corresponding to a single sinusoidal wave with time varying frequency and amplitude.
Something which closely resembles the original input sound (a resynthesis) can be generated by computing and adding all of the individual time varying sinusoidal waves together. In almost all cases the resynthesis will not be exactly identical to the original sound (although it is possible to get very close).
Aside from offering a very detailed analysis of the time varying frequency content of a sound, a sinusoidal model offers a great deal of flexibility for editing and manipulation. SPEAR supports flexible selection and immediate manipulation of analysis data, cut and paste, and unlimited undo/redo. Hundreds of simultaneous partials can be synthesized in real-time and documents may contain thousands of individual partials dispersed in time. SPEAR also supports a variety of standard file formats for the import and export of analysis data.

Current Status

Currently SPEAR runs on MacOS X (PowerPC), MacOS 9 and Windows. For a variety of reasons SPEAR will probably operate better on MacOS X. The program is still in a pre-1.0 stage, meaning that not only will there be some bugs but that significant underlying changes may still take place before a 1.0 release. With that said, it is currently quite stable and useful.


http://www.klingbeil.com/spear/


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seraph
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PostPosted: Sat Dec 17, 2005 2:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

thanks
I had seen it in action and it seems quite useful Very Happy

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seraph
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PostPosted: Sat Dec 17, 2005 2:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

what kind of files are those?


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blue hell
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PostPosted: Sat Dec 17, 2005 2:56 pm    Post subject: Reply with quote  Mark this post and the followings unread

Help, how does one get sound into this program ?
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also .. could someone please turn down the thermostat a bit.
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seraph
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PostPosted: Sat Dec 17, 2005 3:04 pm    Post subject: Reply with quote  Mark this post and the followings unread

Blue Hell wrote:
Help, how does one get sound into this program ?

it looks like it analyses prerecorded audio files. I don't see anything about real time analysis.

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blue hell
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PostPosted: Sat Dec 17, 2005 3:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

Don't know it wants files I don't have ... I dont know what those file types are ... the program crashes btw after it showed me this file format not understood message. Too bad .. looks like a nice sound sculpturing tool otherwise ...
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also .. could someone please turn down the thermostat a bit.
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mosc
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PostPosted: Sat Dec 17, 2005 5:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

Yes, this is cool. Kyma is very strong in the analysis/resynthesis sutff. It does this in realtime and the resynthesis often sounds identical to the input. In time, with faster computer CPUs, this will be possible on GP computers too.
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aquanaut



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PostPosted: Sun Dec 18, 2005 6:54 am    Post subject: Reply with quote  Mark this post and the followings unread

Blue Hell wrote:
Don't know it wants files I don't have ... I dont know what those file types are ... the program crashes btw after it showed me this file format not understood message. Too bad .. looks like a nice sound sculpturing tool otherwise ...


what kind of file is it asking for? Here i just need to load an Aiff and it works fine.
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seraph
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PostPosted: Sun Dec 18, 2005 10:29 am    Post subject: Reply with quote  Mark this post and the followings unread

aquanaut wrote:

what kind of file is it asking for? Here i just need to load an Aiff and it works fine.

look at the .jpg I posted

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aquanaut



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PostPosted: Sun Dec 18, 2005 11:08 am    Post subject: Reply with quote  Mark this post and the followings unread

Use Open instead of import file
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seraph
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PostPosted: Sun Dec 18, 2005 1:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

aquanaut wrote:
Use Open instead of import file

you are right Very Happy

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