Choose a track to listen to some of the different styles that can be achieved.

You might be looking for the warmth and passion in Shakespeare’s Sonnet 18, “Shall I compare thee to a summer’s day?”, where the complexity of the rhythm and structure needs to be balanced with the sense of love.

Or the reassuring warmth of the Scientist in the short clip for AstraZeneca.

Peter Trimble in the clip from BBC Radio 4’s Moonraker has the period feel of a slightly clipped, 1950s BBC announcer who gets increasingly in hot water.

The Unlucky Claims Payer in the QBE Corporate extract is professional and well-meaning, but slightly out of his depth.

Charles in KPMG’s Future Audit is managing and motivating his team with authority and calmly under pressure.

The Dad in the HSBC clip is filled with love for his family and confident he’s doing the right thing by planning for their future.

The narrator in Future Perfect drives the narrative of the spoof interviews engagingly and with assurance.

The Childline Test has enthusiasm and gentle excitement balanced with a straightforward, approachable delivery.

The US psychiatrist in A Selfish Act of Community has a laidback quality designed to draw out his clients and fill them with confidence.

The manager in the Deutsche Bank training clip is professional and encouraging as he reassures his direct report.

The cardiologist in the Fortis Pharma clip is quietly spoken, calm and professional.