Not all of them do. Autism is much to broad a diagnosis for this kink of generalization.
She had a monotone voice.
The professor spoke in a monotone voice during the lecture, making it difficult for the students to stay engaged.
My professor always has a monotone voice every morning.Since my grandfather is so old,he always speaks in a very monotone voice.
The Headmaster addressed the assembly in a monotone voice
Interaction with the textits also a monotone
Interaction with the textits also a monotone
Interaction with the textits also a monotone
Monotone or monotonous.
Interaction with the textits also a monotone
monotone
monotonous and lacking in emotional engagement. It may make the audience lose interest and feel disconnected from the content being delivered. Inflection in the voice is important for conveying meaning and capturing the attention of listeners.
Interaction with the textits also a monotone