* Sound artist: This term is often used for artists who create works using recorded sounds. It's possible they could be considered collectors as well, depending on their process.
* Sound recordist: This term describes someone who records sounds for various purposes, like documentaries or sound effects libraries. They could be considered collectors in the sense that they gather a library of sounds.
* Acoustic ecologist: This person studies the soundscapes of different environments and might collect recordings for research purposes.
* Sound designer: Someone who creates or manipulates sounds for film, games, or other media. While they may not be collecting sounds in the traditional sense, they are building a library of sounds they can use.
Ultimately, the best term would depend on the specific way the person collects sounds and what they do with them.