General positive descriptors:
* Mellifluous: Smooth and sweet-sounding.
* Euphonious: Pleasant and harmonious.
* Sonorous: Full, deep, and resonant.
* Pleasing: Agreeable to the ear.
* Charming: Attractive and captivating.
Descriptors focusing on richness:
* Full: Rich and deep.
* Warm: Inviting and comforting.
* Smooth: Flowing and effortless.
* Rich: Abundant and full of tone.
* Velvety: Soft and smooth like velvet.
Descriptors focusing on pleasantness:
* Sweet: Gentle and melodious.
* Soothing: Calming and relaxing.
* Clear: Easy to understand and articulate.
* Friendly: Warm and approachable.
* Engaging: Captivating and interesting.
More specific terms:
* Silver-tongued: Eloquent and persuasive.
* Golden-voiced: Possessing a beautiful and rich voice.
* Enchanting: Captivating and alluring.
The best word to use will depend on the specific qualities of the voice you want to describe.