Answer:
True
Step-by-step explanation:
The sound of the tuba is produced due to the vibration of the lips when blowing in the mouthpiece, a semi-round structure that has a dimension of about two centimeters.
The sound of the tuba is characterized by being round, calm, strong, robust, heavy, supportive, soothing, earthy, sonorous, majestic, cavernous, rumbling, unfathomable, serious, of great weight, wide and resonant. In all registers, the tone is richer, more rounded and darker than the low tuba and less metallic than the bass and double bass trombones.