If you want to intentionally produce a bold or cracked voice effect, you can try the following techniques:
Experiment with your vocal cords: To achieve a bold or cracked voice, you can try altering the tension and positioning of your vocal cords. Pushing your voice from your chest, rather than your throat, can create a deeper, more resonant sound. You can also intentionally add tension to your vocal cords to create a cracking or raspy effect.
Practice vocal fry: Vocal fry is a technique where you intentionally create a low, creaky sound by engaging the lower range of your voice. To produce vocal fry, try speaking or humming in a low, gravelly tone. Experiment with different levels of vocal fry to achieve the desired bold or cracked effect.
Use proper breath control: Controlling your breath can help you achieve the desired vocal effect. Take deep breaths from your diaphragm, and release air slowly and evenly while speaking or singing. This can provide more power and depth to your voice, giving it a bolder quality.
Experiment with resonance: Resonance plays a significant role in the quality of your voice. Experiment with adjusting the placement of sound within your throat, mouth, and nasal cavities. By intentionally modifying the placement of resonance, you can achieve a more unique and bold vocal tone.
Seek professional guidance: If you're looking to develop or modify your voice for specific purposes, such as acting or singing, it can be beneficial to work with a vocal coach or voice trainer. They can provide personalized guidance, exercises, and techniques to help you achieve the desired vocal effect safely and effectively.
Remember to take care of your voice and avoid straining or overexerting your vocal cords. If you experience discomfort or persistent hoarseness, it's essential to consult with a medical professional or speech therapist to ensure you're using your voice in a healthy manner.