Description: General ambience from inside the butterfly house at Chester Zoo, England with crowds, voices etc

Description: Tube train in London's Underground departing, followed by another one pulling in to the platform

Description: Airy drone with overtones recorded in an old stairwell. Stereo.

Description: Quiet, clean room tone with some body to it. Recorded in a hotel room but has wide use.

Description: Busy airport terminal, many voices, walking, pushing trolleys etc

Description: Classroom of male and female students chat among themselves while the teacher prepares her lesson at her desk. Stereo.

Description: Room tone of a large interior, resonant space with a few footsteps and slight moving about.

Description: Interior wood room on a quiet night with the feeling of wind. Stereo field recording with nothing added. Part of a series.