The fully digital mixing console powered by the latest Texas Instruments DSP processors, with 18 digital and analogue inputs, a crosspoint router, 32-bit processing, sampling rates up to 96kHz, sample rate converters on all the digital inputs and both EQ and dynamics on every channel.
All those tools can be accessed from the control surface, but they can also be controlled from a PC attached to the console via IP network.
Like most expensive consoles, OXYGEN 4 DIGITAL is composed of a rack mounted digital core and a control surface with 8 faders.
OXYGEN 4 DIGITAL control surface is divided into two distinct areas on the conventional lines of input and master sections.
The input channels comprise eight identical strips.
Starting from the bottom we have a full size fader which obviously controls the level for whatever source is routed to that channel, but in software it can also be configured to perform fader start, red light switching and monitor muting.
Above and to the left of the fader, a group of eight LEDs show status information for that strip.
The two larger ones indicate which of the two main output busses the strip is routed to: programme or sub.
This signal is always post-fade and post the channel's on switch. The sub buss would usefully provide a stereo clean feed to (for example) external codec.
The next group of three indicators is dedicated to the aux buss and the assignable EQ and dynamics. The aux buss is stereo and may be selected independently on each channel as a pre or post-fade send.
Each OXYGEN 4 DIGITAL channel may also be assigned a dynamics control function a combined compressor-limiter with a single control.
The right hand master section is topped by a pair of LED level meters, scaled from -36 to +9dB.
The 19-inch rack is the heart of Oxygen 4 Digital.
All audio processing and routing takes place in this unit.
The control surface and DSP engine can be separated by up to 5 meters using a 15-way D-sub ended cable.
Signal processing takes place in one DSP. Processing uses precise floating-point calculations at a word length of 32 bit.
All audio signals throughout the console preserve their 24-bit resolution from the input conversion. Even 16 bit data streams, like CD-players, have 24 bits reserved.