Amplitude Imposer

by ndc Plugs (http://www.niallmoody.com/ndcplugs)

Version : 1.00

Author : Niall Moody (niallmoody@yahoo.co.uk)

Format(s) : Windows VST

Created with : C++

CPU Usage : 0.01%? (tested on a P4 2.8GHz)

Description :

Imposes the amplitude envelope of one (stereo) signal onto another (stereo) signal. Can also be set to amplify the second signal to get a more consistent level. How it works is: when the second signal's amplitude envelope goes below a certain threshold, it is amplified back up to the threshold (kind of like a compressor working in reverse). It should be noted that doing this tends to expose any low level noise in the signal fairly quickly. I got the idea for this plugin from reading Trevor Wishart's 'On Sonic Art', specifically the notion of imposing one sound's morphology onto another. You can get some reasonably good results with a bit of creative automation (i.e. sounds morphing into one another – it's not amazing, since it doesn't alter spectral content).

This plugin has 4 inputs and 2 outputs – as such, it may not be possible to use it in all hosts. You probably want to use it in a modular host like Tracktion etc.

Credits :

VST is a trademark of Steinberg Media Technologies AG.

Installation :

Copy the AmplitudeImposer.dll file into your vst plugins directory.

Hosts tested on :

Tracktion v1.6.0.1

Version History :

v1.00 - First release.

License :

This plugin is released under the MIT/expat license (below). In addition, you can find the source code for it (for the forseeable future – as long as I have webspace for it anyway) at http://www.niallmoody.com/ndcplugs/ampimposer.htm.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.