The cameras have no audio, so he works in silence.

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On a more practical level, the unit is compact, USB-powered, and has a built-in audio-interface (no extra sound card required for headphone monitoring).

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It represents the pinnacle of Focusrite's analogue audio circuit design coupled with the latest in digital conversion technologies, alongside stunning, no-compromise industrial design and professional practicality.

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For starters, 50 was keen to stress that this is no plain endorsement: Studio Master Sound (SMS) Audio is his company and he's invested in it.

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But Mr Furey believes it is 45sound's audio-matching software which gives it the edge over rivals - meaning no human intervention is needed in order to whip the clips into a listenable state.

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Many of the 1, 700 stations in America and Europe that stream audio (another 4, 300 stations have websites but no audio) are standard broadcasters that simulcast sports, music and news over the internet.

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The DA-F60 incorporates neodymium magnets and a passive radiator to produce results typically found in high-end Hi-Fi audio systems, including tuned low-frequency reproduction and virtually no distortion even at high volumes.

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