Christian Knufinke Software has released SIR2 Reverb Version 2.4 for Windows VST (incl. 64bit version) and Mac OS X VST/AU 

The new windows installer includes a 32-bit and a 64-bit binary of SIR2.
To run the 64-bit version of SIR2 Windows Vista 64 AND a 64-bit host application is required. 

Release Notes:

* Initial Windows 64bit release.
* Triangle envelope functionality.
* Finer Pre-delay adjustment.
* Search functionality, if impulse file not found.
* Ability to store EQ-presets (right mouse-click into EQ-Envelope).
* Improved project-portability between different workstations (relative filename will be stored too, so if the default impulse-response location is different, the IR will be found). Please note: to use this function, the project has once to be saved with this new version.
* New look.
* Support for "Ctrl+mouse click", for one-button mouse Macs.
* Improved host compatibility.

Other Features:
	
* Zero latency processing.
* Low CPU-spiking even with small sound-device buffers.
* Includes Pinguin's High Definition Impulse Responses.
* "True Stereo" processing (a stereo convolution takes place for every source channel (left + right)).
* Routing capabilities ( mono->mono, mono->stereo, stereo->stereo...).
* High-quality internal sample rate converting.
* Imports WAV, AIF, FLAC, BWS, OGG file formats.
* Linear phase FFT-EQ.
* Fair Copy-Protection - NO challenge/response NO Dongle required - license key based.
* Free non-destructive amplitude envelope.
* Free non-destructive filter envelope.
* Pre-delay (0ms - 2000ms).
* Stretch control (high quality re-sampling).
* Forward / reverse switch.
* Stereo In / Stereo IR Control.
* Preset-managing.
* Separate dry/wet control (-60db .. +20dB).
* Auto-gain (automatic volume compensation).
* Signal routing options.
* HDIR-Direct On/Off switch.
* "Beat-Scale"-mode.
* If you have two stereo files, one with "L" and one with "R" at the end of the file name, you can click with right mouse button on one of the files to create a true stereo file. 
This is useful for third-party impulse response libraries.
* Built in impulse-file browser (with folders).
* Picture association.
* Waveform Zoom.

Requirements:

Windows
* Windows XP or Windows Vista
* 100 MB hard disk space
* Intel Pentium 4 or better
* VST-Host application (like Cubase, Tracktion...)

Mac
* Mac OS 10.4 or newer
* 100 MB hard disk space
* Intel Processor recommended
* Audio-Unit or VST compatible host software

More info at: http://www.knufinke.de/sir

	
	
