Emotions, both positive and negative, directly influence the quality and tone of our voice. Therefore, although we are often able to modulate it to hide what we feel, the voice does not constantly deceive.
Speech therapist Laura Martín detailed EFE Health how emotions, such as fear or sadness, generate tension in the muscles of the neck and jaw, affecting the larynx and resulting in a shaky or monotonous voice.
“A negative emotion generates a tension that we feel in the muscles of the neck and jaw; they become rigid and, being rigid, the internal space through which we breathe and which is the same duct through which we speak, becomes very narrow. It cannot even move because there is a kind of contracture,” he adds.
Stress and anxiety manifest in the voice through a faster cadence and a lack of pauses. These emotions can lead to less effective communication, affecting the ability to listen and the attention of the interlocutor.
Techniques to control the voice
There are various techniques to train the voice in the professional field, which include breathing and modulation exercises. This is what actors do: educate the voice to transmit emotions, even if they are fake.
“Controlling the voice is possible. The question is how long it can be sustained,” says Laura Martín.
It also emphasizes the importance of avoiding voice imposition, suggesting that communicators must find their own vocal identity to be authentic when transmitting their message.
Speaking in public can provoke significant fear, generating instability and tremor in the voice. This anxiety can result in physical responses such as tachycardia and cold sweats. Martín advises the practice of public speaking as an effective way to manage nervousness and clearly project the desired emotions.
Prepare for daily life
Vocal technique in acting is a central tool to project the voice, modulate emotions, improve diction and sustain clearer and more confident interpretations. It also helps protect the voice from wear and tear, especially important in theater and intensive voice work.
in the performance. On stage, the voice not only transmits text: it communicates intention, character, rhythm and emotional state. Good technique allows the actor to reach the audience without forcing, maintain clarity even in large spaces, and adapt his or her tone depending on the character or dramatic situation.
In daily life. Off stage, vocal technique serves to speak with more clarity, confidence and administration. It can help in presentations, interviews, teaching, customer service and everyday conversations, because it improves breathing, projection and expressiveness.
Practical applications
- Diaphragmatic breathing to speak with less tension and more resistance.
- Articulation and diction so that they understand you better.
- Pitch modulation to sound more convincing or relatable depending on the context.
- Vocal care to avoid fatigue, hoarseness or overexertion.
Simple example. If you have to present in class or in a meeting, good vocal technique allows you to start with more stable breathing, speak louder without shouting, and highlight key ideas with changes in rhythm or intonation. That makes your message clearer and more persuasive.
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