If performance is more inconsistent than without the noise, the subject has internal noise.

The walls began to glow as the sky darkened, and in the evening silence the air hummed with the internal noises of the city's life.

In modern radar systems, the internal noise is typically about equal to or lower than the external noise.

Each of those systems produces its own intrinsic or internal noise.

The new design also reduces internal mechanical noise because of its increased efficiency.

Again, slightly convergent flow in state space to buer external and internal noise seems ideal.

Rick fed it some coins while the machine made strange internal noises.

The difference between the internal noise and the maximum output level is the device's dynamic range.

Bugorski completely lost hearing in the left ear and only a constant, unpleasant internal noise remained.

On average, internal noise up to about 7 dB can be reduced.