Software effects maker VirSyn released a 64-bit version of its Bark multiband filter / compressor plugin.

As VirSyn notes, Bark 1.5 was designed to match the receptive qualities of the ear. The ear behaves as if it contains a bank of filters, each filter passing frequencies within the critical band; two tones separated by more than a critical bandwidth are received by the ear independently, according to VirSyn. For this reason, Bark contains a filter bank with 27 bandpass filters to match the critical bandwidth.

"In fact, the human ear also has its own built-in compression system based on the critical bands. Consequently, Bark incorporates an independent compression algorithm for each of its 27 bands," writes VirSyn.

This 64-bit version offers compatibility with Windows 7 and Windows Vista of course, plus a redesigned user interface and an integrated AI Knob Interface (VST 3).

Bark's main features:

• 27-Band equalizer / compressor
• Linear phase precision filters for maximal transparency
• +24 / -48 dB gain change rate per band
• Surround operation with channel link / unlink (only available for AU / RTAS / VST3 version)
• Minimized latency (12 ms)
• Real-time pre / post processing spectrum display
• Compression parameters overall and per band
• Host compatibility: VST 3, VST 2.4, AU, RTAS

What's new in version 1.5:

• VST 3 / VST 2.4: 64-bit version for Windows 7 and Windows Vista
• Redesigned user interface
• VST 3: AI Knob Interface integrated

Current users may upgrade to Bark 1.5 for free, while new users may purchase Bark at the special introductory price -- VirSyn is making the 64-bit version of Bark 1.5 available to the first 200 customers for 99 EUR (approximately $140). Those interested in the Bark Bundle Offer, good until June 30, 2011, may get Bark and one additional FX plugin of your choice together for just 199 EUR (approximately $282).

For more information, visit VirSyn's Web site at www.virsyn.de.