Overview
This lecture explores the mechanics of beatboxing using live laryngoscopic analysis to show how the human voice can produce a wide range of sounds.
Introduction to Beatboxing
- Tom Thum is a professional beatboxer who creates sounds using only his voice.
- Beatboxing relies on practicing control over the flexible, unfiltered human voice.
- Common questions include how beatboxers make such sounds and whether it damages their vocal cords.
Anatomy and Sound Production
- The vocal cords (vocal folds) take air from the lungs and create a vibrating air column in the throat.
- The throat acts like the horn of a trumpet, shaping the sound beyond the vibrating vocal cords.
- Laryngoscopic examination shows beatboxing does not damage healthy vocal cords.
Live Laryngoscopic Demonstration
- A rigid laryngoscope provides high-resolution images of the larynx during sound production.
- Vocal cords change shape from long and skinny to short and fat as pitch shifts from high to low.
- Beatboxers can achieve a much wider vocal range than typical performers, sometimes beyond what equipment can record.
The Role of Other Structures
- A flexible laryngoscope allows visualization through the nose to the soft palate and pharynx.
- The soft palate seals against the back of the nose to create sounds like "kh."
- Beatboxers use precise muscular control of the tongue, pharynx, and larynx to shape unique sounds.
- Arytenoid cartilages move rhythmically to change sound qualities.
- "Sphincter bass" is produced by collapsing tissues to create deep bass notes.
Demonstration & Performance
- Tom Thum demonstrated various beatboxing techniques, starting with basic sounds and building complexity.
- The session showed that all beatboxer effects are produced by manipulating air, vocal cords, and soft tissues.
Key Terms & Definitions
- Beatboxing — creating percussion and musical sounds using only the mouth, lips, tongue, and voice.
- Vocal cords (vocal folds) — bands of tissue in the larynx that vibrate to produce sound.
- Laryngoscope — a medical instrument used to view the larynx (voice box).
- Arytenoid cartilages — small cartilage structures in the larynx involved in vocal cord movement.
- Pharynx — the muscular part of the throat behind the mouth and nasal cavity.
- Soft palate — the soft part at the back of the roof of the mouth; seals the nasal passage during certain sounds.
Action Items / Next Steps
- Practice feeling your soft palate move by repeating "kh" loudly several times.
- Review anatomy of the vocal tract for better understanding of sound production.