Research & Development


SAQAS - Spatial Audio Quality Assessment Scenes

A library of sound scenes for evaluation of object-based spatial audio systems.

This dataset was presented in the paper "A Library of Binaural Room Impulse Responses and Sound Scenes for Evaluation of Spatial Audio Systems", which was presented at the conference DAGA 2014 in Oldenburg, Germany. The paper is available from here.

The scenes are stored as Broadcast Wave Format (BWF) files. The Audio Definition Model is used to represent the dynamic 3D scene meta-data in an object-based audio format, this is stored in the axml chunk of the BWF files.

The aim is to develop these towards a complete library of test scenes to evaluate reproduction systems, codecs and rendering systems for object-based 3D audio. This includes different scenes in an object-based representation and their rendition into five channels. The library is open for further contributions of critical material.

For software that allows the handling of ADM based BWF files, see here.



Unless otherwise stated, all SAQAS data is available under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 licence:

BWF Scene Files

Title: Panned Noise
Filename: panned_noise_bwf.wav
An amplitude modulated noise signal, moving in a circle around the listening area.

Title: Applause
Filename: applause_bwf.wav
Eight applause signals recorded on figure-of-8 microphones in a Hamasaki square configuration. One microphone point left-right and one up-down at each position.

Title: Speech Test
Filename: speech_test_bwf.wav
Concurrent and sequential speech from positions of loudspeakers in a 3/2 reproduction setup.

Title: Delibes - Flower Duet
Filename: flower_duet_bwf.wav
Trio of flute, cello, and viola.
Performed by musicians from the BBC Philharmonic orchestra.
The Flower Duet from Léo Delibes’ opera Lakmé.

Title: Emma Heartbeat - The Machine (Aer Remix) [Excerpt]
Filename: machine_aer_bwf.wav
Electronic music.
Remix by Matt Pike (Aer)
More sounds available at
Original Track by Emma Heartbeat
More sounds available at

All files bundled in an archive: SAQAS_BWFs.tar.gz


Please email if you have any questions or queries.