But one of the worst offenders is what specialists call the Lombard effect.

The human brain automatically changes speech made in noise through a process called the Lombard effect.

Both processes are involved in the Lombard effect.

Experimentally, the Lombard effect has also been found in the vocalization of:

An important finding is that whales, in a process called the Lombard effect, adjust their song to compensate for background noise pollution.

The Lombard effect also occurs following laryngectomy when people following speech therapy talk with esophageal speech.

It has been suggested that the Lombard effect might also involve the higher cortical areas that control these lower brainstem areas.

The Lombard effect has been found to be greatest upon those words that are important to the listener to understand a speaker suggesting such cognitive effects are important.

The Lombard effect depends upon audio-vocal neurons in the periolivary region of the superior olivary complex and the adjacent pontine reticular formation.

The human brain automatically compensates the production of speech for background noise in a process called the Lombard effect in which it becomes louder with more distinct syllables.

There is a development shift however from the Lombard effect being linked to acoustic self-monitoring in young children to the adjustment of vocalizations to aid its intelligibility for others in adults.

Étienne Lombard (1869-1920) was a French otolaryngologist and surgeon who discovered the Lombard effect, in which a person's voice is involuntarily raised when speaking in a loud environment.

The Lombard effect or Lombard reflex is the involuntary tendency of speakers to increase their vocal effort when speaking in loud noise to enhance the audibility of their voice.