There was an audible gasp as he was announced as 'the surprise speaker'.

There was an audible gasp when the notes went for 16,000 to a telephone bidder, followed by applause.

An audible gasp passes round the audience as we absorb the scene on stage.

But there was an audible gasp from the audience as she said it and almost immediately the show's social media sites exploded with viewer reaction.

At the end of the coda there was an audible gasp before the audience broke out into spontaneous applause.

When we entered the room there was an audible groan and visible annoyance.

And all that after an astonishing and hugely audible groan when he picked the ball up.

The publication of yet another, this time claiming to reveal her 'forgotten years', might lead to an audible groan if it were not for its author.

For example, can you get in and out a few times without emitting an audible groan and are you 100 per cent happy with the arm and legroom?

Audible groans emerged from the pack of lead runners as they hit the quagmire.

At higher speeds the sound created by tire friction and the air displaced by the vehicle start to make sufficient audible noise.

Enough audible noise was produced by pressing the buttons that consumers began calling remote controls clickers.

In most compartments, this type of vibration normally manifests itself as audible noise.

The assistant then stands in place against the board and gives an audible signal to commence the stunt.

The pedal can have a vigilance function built in, where drivers must release and re-press the pedal in response to an audible signal.

In such instances, an audible signal would sound and play was suspended at that point.

The problem was traced to the power supply of the equipment which converts the signal from the atomic clocks into an audible signal.

Usually the alarm panel's sounder will activate if a trouble condition exists, though older systems would sometimes activate a bell or other audible signal connected to the panel.

The scarcely whispered opening, where the most audible sound was the conductor's own wheeze, promised something far more emotional than the subsequent performance delivered.

The only audible sound was that of people heading for the exits.

So she studied the vibrations produced in soap films by audible sound waves.

Any audible sound, especially of a variable nature, can be used to distract radio operators and disrupt communications.

This may give either a visible flame or an audible sound.

He delivered his brief apology in a hoarse, barely audible voice.

In front of millions of viewers, he bows his head, and - in a halting, scarcely audible voice - admits he can sometimes be wrong.

When we stopped, he said he was afraid, the first time in an audible voice.

He normally speaks respectfully in a barely audible voice, but shouts loudly and brazenly over radios and intercoms.

The song was mostly instrumental, but at one point a clearly audible voice can be heard saying a line of gibberish.

His memory was precise and his voice clearly audible without the assistance of the speaker's microphone.

The voice betrays the adrenalin of combat, but the words are clearly audible over the static.

A muffled scream of pain was clearly audible on the soundtrack.

Almost continuous, clearly audible calls to the ear for the past 20 minutes.

The engine was still running, its low steady rumble clearly audible against the noise of the sea.