A continuous or prolonged state or condition.

An enduring or stable level of sound or frequency.

ध्वनि या आवृत्ति का स्थायी या स्थिर स्तर।

English Usage: The sustained pitch in the orchestra was captivating.

Hindi Usage: ऑर्केस्ट्रा में निरंतर स्वर ध्वनि आकर्षक थी।