For literal sound:
* Sound: A more general term.
* Tone: Refers to the quality of the voice.
* Accent: Refers to the pronunciation.
* Speech: Refers to the act of speaking.
* Utterance: Refers to a single spoken word or phrase.
For expressing opinion or sentiment:
* Opinion: Emphasizes a personal viewpoint.
* Sentiment: Indicates a feeling or emotion.
* Standpoint: Emphasizes perspective.
* Perspective: Emphasizes a particular way of seeing things.
* Point of view: Similar to perspective.
For communication:
* Communication: A broader term that includes all forms of communication.
* Expression: Emphasizes the act of communicating ideas or feelings.
* Articulation: Emphasizes clear and precise communication.
* Dialogue: Refers to a conversation between two or more people.
For power or authority:
* Authority: Refers to the power to command or influence others.
* Influence: Refers to the ability to affect someone's actions or thoughts.
* Control: Emphasizes power and dominance.
For music:
* Vocal: Refers to music produced with the voice.
* Singing: Refers to the act of producing music with the voice.
* Choral: Refers to music performed by a choir.
Please provide more context, and I can give you a more specific answer.