If they could pump enough air into him to produce sound.

Some of his works also produce sound as they gently move.

He wants to produce a sound that is similar to the current era of music.

The chip was set up to produce sound - music or voice.

These were hit onto the ground and with other sticks in order to produce sound.

He had lost the ability to move, to produce sound, to react in any way.

Yet in their best moments, the players produced a sound of great beauty.

There are other methods as well, and each produces a different sound, but only after a great deal of practice.

They were extremely light but produced a rich and bright sound.

But both instruments were not using electricity to produce sound.