I’ve not tried this, but recall seeing it in a thread. If you have Soundtrack Pro, there’s a filter you get to through the Process Menu > Effects > Dynamics > Enveloper > User Presets > Roomkiller. It sounded like a fancy noise gate. As mentioned above, echo/reverb can’t be removed.
John
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor
ATTO ExpressSAS R380 RAID Adapter, PDE Enclosure with 8-drive 6TB RAID 5
Final Cut Studio 2 (up to date)
Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN