Sonifex Show New Redbox Digital Delay & Mixer At IBC 2009
27th August 2009
Premiering at the IBC show on stand 8.E61 are two new Redbox products, the RB-DMX4 , 4 x 4 channel digital audio mixer/router and the RB-DD4, 4 channel digital audio delay.
Marcus Brooke, Managing Director commented: “These two new Redboxes are useful ‘audio for radio and TV’ products allowing digital audio to be delayed and manipulated. They allow a group of digital audio de-embedded from an HD stream to be delayed, routed and the level of each channel altered. With the release of new Redbox embedders and de-embedders as well, they form part of a suit of practical products for video and TV broadcast use.”
The RB-DMX4 is a digital mixer capable of mixing or routing 4 mono input channels into 4 mono outputs, or 2 stereo inputs into 2 stereo outputs. The inputs are sample rate converted to allow sources of different sample rates to be mixed with the output sample rate being defined independently. The flexible mix matrix allows for a wide variety of mixing options and creativity, to select which inputs are mixed or routed to which outputs.
Each pair of inputs is selectable via front panel push buttons, from either AES/EBU balanced XLRs, S/PDIF unbalanced phonos or TOSlink unbalanced optical inputs. There are 2 stereo outputs which are available as simultaneous AES/EBU balanced XLRs, S/PDIF unbalanced phonos or TOSlink unbalanced optical outputs. The output sample rates are selectable from between 32kHz and 192kHz.
There is a monitor socket on the front panel with a gain pot to allow you to monitor the output of each channel. Each input has a trim pot, which can be used to attenuate the input signal which allows for a perfect mix of channels at different audio levels. Audio presence LEDS around each input button give an indication of input audio level. There are also 4 presence LEDS which give an indication of output level.
The RB-DD4 4 channel digital audio delay allows you to delay 4 mono channels of audio independently or together. Each channel delay is user selectable from multiples of common video frame rates, or a user defined value set via the serial interface. The unit is perfect for synchronizing audio to video which has been delayed by processing latency.
Using front panel controls you can select the length of one frame of delay, the multiple of frames to delay by and which channel needs to be delayed, with an option for ‘ALL’ channels.
The connectivity is incredibly flexible, with three different types of connection for each input and output including AES/EBU, S/PDIF and TOSLink. All three different types of output can be used simultaneously. There is a monitor socket on the front panel which allows you to listen to each mono channel, by front panel selection. The channels can be optionally monitored as pairs using a rear panel stereo option. Audio presence is detected and displayed for each channel on front panel LEDs.
A powerful feature of the RB-DD4 is that by using the Sonifex SCi serial software, the unit can be programmed for different delay durations, levels and switching functions so that you can program the unit for your specific application.
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