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Adobe Audition CS5.5 
What’s New
Native multichannel support (5.1 surround)
With native support for multichannel soundtracks, Adobe Audition makes it easy to create entirely 
new surround sound experiences or put the finishing touches on existing 5.1 projects—and save to 
a full 5.1 surround master. True 5.1 metering and effects are available on surround tracks and 
sessions in all modes, including the Multitrack Editor, Waveform Editor, and in the Mixer. 
The new Track Panner panel offers parameters that include angle, stereo spread, and radius—
you even can isolate and make adjustments to the LFE channel. When a mono or stereo track is 
routed to a 5.1 output, its pan position is indicated by a 5.1 icon on the Track Header in 
Multitrack View and on the Channel Strip in the Mixer.
You also can open 5.1 files in the Waveform Editor, where you can make edits to the file overall, or to 
individual channels—even get deep inside the individual channel waveforms in Spectral Display by 
toggling the channels you don’t want to edit. Apply surround effects such as Surround Reverb and 
Amplify, diagnostic tools such as the new DeHummer and DeClicker, and analysis tools such as 
Amplitude Statistics and Frequency Analysis. With the new playback engine in Adobe Audition CS5.5, 
you can keep working while analysis and diagnostics are performed in the background.
This is a 5.1 file in the  
Waveform Editor, with the Spectral 
Display active. When you select 
surround effects in the Effects 
Rack, audio levels are displayed 
with six-channel 5.1 metering, just 
as the Level Meter displays 
multichannel levels. Mute 
individual channels with the 
Channel Toggle buttons on the 
right edge of the waveform display 
to isolate and edit individual 
channels within a 5.1 file. 
Metering adapts to 5.1 files in all panels, 
such as the Effects Rack (left), the Track 
Header (center), and the user-
configurable Level Meter (right). The 
Effects Rack shows effects optimized for 
multichannel use: Amplify, the Channel 
Mixer, and the new Surround Reverb. 
Adobe Audition CS5.5 handles 5.1 audio 
natively, which means it’s easy to create and edit 
multichannel mixes. The Track Panner panel 
provides intuitive controls and visual feedback 
to help you locate sounds precisely in the 
surround field. Icons on individual track headers 
(right) and channel strips (far right) clearly 
display basic surround panning information.