Hey, it echoes.

I heard her voice inside my head.

WE HAVE TO LlVE ANYWHERE

On the 30th of May, 1832, a gunshot was heard ringing out across the 13th arrondissement in Paris.

(Laughter)

The room echoes with his voice.

Only my footsteps remained

There was a suggestion of anger in his voice.

And this was a horrific scene. Derek is tearful as he shouts at his mother.

This room is noisy. The sound bounces right off the walls.

For example, the one on the left here allows me to add a little bit of reverb to my sound, which gives me that (Trumpet) flavor.

When the All Blacks came out onto the field a roar like 'woooaahh' swept over the crowd.

From the wet streets come sounds, voices... echoes of lost music.

Her lovely voice was a real feast to the ears.

If you happen to be Richard Kimble, it can simply be another lonely street, where the laughter belongs to someone else.

A call for help rang through the night.

But still as I wonder, I won't go under.

From the sound, we can actually track the vocal fold position as it vibrates, and just as the limbs are affected in Parkinson's, so too are the vocal organs.

He wants you to go to the store as soon as it gets dark.

Say it loud!

Louder, damn it! Yes!

Not calm enough?

You talk too loud.

Keep your voice down!

The next slide will show what the impact this may have on the range at which whales can communicate.

Why haven't we felt the effects?

In a classroom with a reverberation time of 1.2 seconds, which is pretty common, this is what it sounds like.

Your voice.

It's like this, like an amusement park.

Tom has a low pitched voice.

Tom has a high pitched voice.

Keep your voice down.

Keep your voices down.

That's enough?

You hear the reverberation as the sound travels over long range in the ocean and is not quite as loud.

And for the worse not for the better, but for the worse.

Tom has a loud voice.

Shh. Not so loud.

They said, where are people going to find the morality, where are they going to find guidance, and where are they going to find sources of consolation?

The more you sing, the better it gets. Again!

And the birds on the floor tend to have lower pitched calls, so that they don't get distorted when they bounce off the forest floor.

You don't want to pick the wrong mutual fund, or the wrong salad dressing.

I like the sound of that.

When? Where? How was it?

I hear the sound of my name uttered by an unseen presence.