Our Audio Visual testing facility

TechRadar's Audio Visual gear reviews are underpinned by rigorous test data from our Tech Labs. We can test what the manufacturers claim about their hardware and tell you the truth.

Our Tech Labs consist of two main facilities: a Viewing Room and a Test Lab.

Viewing Room

The Viewing Room is used mainly for testing TVs, projectors and speakers and has been designed to reproduce the conditions that are found in a typical mid-range home cinema setup.

The room features multiple HDMI, component video and audio cable runs, as well as analogue and digital TV and satellite feeds, and has a resident 7.2 surround sound.

Test Lab

The Test Lab is used mainly for number-crunching DVD/ Blu-ray players and amplifiers. It's equipped with two industry-standard systems: a Tektronix VM700 video data analyser, and a Miller Audio Research audio analysis suite.

Using standard test signals from discs and signal generators, these two systems are used to measure factors such as audio and video signal jitter, frequency response and output power. These give us a good general idea of the component quality, processing power and overall performance of players and amplifiers.

Professionals at large

Over the years, our testers have been trained in calibration and testing techniques by the ISF, Tektronix, the Home Acoustics Alliance and other industry bodies.

One of our pledges is to present information that is both understandable and useful, for example, exposing the hype perpetrated by some makers of plasmas and LCD TVs regarding contrast ratios.

To determine real world contrast, as well as measuring colour temperature presets, we employ a Sencore VP401 signal generator alongside a PC running Datacolor Colorfacts software with a Spyder 2 sensor.

We use the Sencore signal generator and our own discs to generate standard TV signals. Colorfacts analyses the colour and luminance performance of TVs and projectors, giving us information in areas such as contrast ratio, colour temperature and luminance.

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