Veronica-Kits Stereo Compressor Limiter

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What is itA stereo audio compressor/limiter suitable for broadcast applications. DetailsDesigned to control the audio level in broadcasting system to prevent over-modulation, the Veronica Compressor Limiter is specifically designed to achieve constant 100% modulation from an FM broadcast with all music and speech inputs. The processor is housed in an aluminium and steel casing measuring 279mm x 190mm x 89mm and includes three pairs of LEDs to indicate compression level. It functions as an AGC to provide peak limiting of audio signals across a frequency range of 30Hz-15KHz with a low signal/noise ratio of -75dBu. Distortion is quoted as 0.2% (at limiting). The unit operates from a single 11-16V DC supply and allows audio inputs up to +24dBu (12Vrms). Output is 0dBu (775mV RMS). Veronica-Kits also produce mono versions of the processor.


Headphone level control - monitoring versus limiting

Technology has allowed higher and higher sound levels to be produced at better and better quality over the past 20 years but more recently there has been a realisation of what this can do to people's hearing. The European Commission acted on this in 2003 by issuing a Directive to harmonise noise control legislation across Europe, which led employers in broadcasting, live music and industry to consider how to protect both staff and the public. In broadcasting, limiter circuits on headphones have been a first line of defence but, as Kevin Hilton reports, a new approach is being taken for location filming.