Purpose

These real-room recordings will be published together with a review paper on blind source separation, the reference for this will be available later so please come back for this. We invite people in the field of blind source separation to apply relevant algorithms on this data and send the results to us for reference in the review paper.

Frequently Asked Questions

Go to the FAQ page to read frequently asked questions and answers.

File naming convention

The recordings are stored in WAV files following the convention:

room<R>_mic<M>_source<B1><B2><B3><B4>.wav

where

R enumerates which room (see below).

M is 1,2,3 or 4 enumerating the microphone.

B1,B2,B3 and B4 is binary indication whether a source was on.

 

Room 1 recordings @ 44kHz

Room Info:

Chamber w. cushion walls.
W1.5 W2 H2.5 meters

Scenario: The sources were placed randomly in the room, either on the floor or on a table.
The Microphones were placed randomly approx. 50cm from the walls at different heights.
Equipment: Behringer ECM8000 omnidirectional microphones.
SM Pro Audio PR4V microphone preamp.
Standard desktop mono PC speakers were used for sources.
Audiotrak Maya44USB soundcard for 4 channel recording.
  Two sources on Three sources on Four sources on
Microphone 1 room1_mic1_source1100.wav room1_mic1_source1110.wav room1_mic1_source1111.wav
Microphone 2 room1_mic2_source1100.wav room1_mic2_source1110.wav room1_mic2_source1111.wav
Microphone 3 room1_mic3_source1100.wav room1_mic3_source1110.wav room1_mic3_source1111.wav
Microphone 4 room1_mic4_source1100.wav room1_mic4_source1110.wav room1_mic4_source1111.wav

 

Room 2 recordings @ 44kHz

Room Info:

Medium size conference room.
W10 W8 H3 meters

Scenario: The sources were placed randomly in the room, either on the floor or on a table or stool. With an average distance of 2 meters between any two sources.
The Microphones were placed along the wall closest to the sources, approx. 1 meter from the wall, at different heights, uniformly spaced with approx. 1 meter.
Equipment: Behringer ECM8000 omnidirectional microphones.
SM Pro Audio PR4V microphone preamp.
Standard desktop mono PC speakers were used for sources.
Audiotrak Maya44USB soundcard for 4 channel recording.

  Two sources on Three sources on Four sources on
Microphone 1 room2_mic1_source1100.wav room2_mic1_source1110.wav room2_mic1_source1111.wav
Microphone 2 room2_mic2_source1100.wav room2_mic2_source1110.wav room2_mic2_source1111.wav
Microphone 3 room2_mic3_source1100.wav room2_mic3_source1110.wav room2_mic3_source1111.wav
Microphone 4 room2_mic4_source1100.wav room2_mic4_source1110.wav room2_mic4_source1111.wav

 

Room 3 recordings @ 44kHz

Room Info:

Medium size office room.
W3 W3 H2.5 meters

Scenario: The sources were placed randomly in the room, either on the floor or on a table or stool. With an average distance of 1.5 meters between any two sources.
The Microphones were placed at different heights, uniformly spaced with approx. 1 meter.
Equipment: Behringer ECM8000 omnidirectional microphones.
SM Pro Audio PR4V microphone preamp.
Standard desktop mono PC speakers were used for sources.
Audiotrak Maya44USB soundcard for 4 channel recording.

  Two sources on Three sources on Four sources on
Microphone 1 room3_mic1_source1100.wav room3_mic1_source1110.wav room3_mic1_source1111.wav
Microphone 2 room3_mic2_source1100.wav room3_mic2_source1110.wav room3_mic2_source1111.wav
Microphone 3 room3_mic3_source1100.wav room3_mic3_source1110.wav room3_mic3_source1111.wav
Microphone 4 room3_mic4_source1100.wav room3_mic4_source1110.wav room3_mic4_source1111.wav

 

Room 4 recordings @ 16kHz

Room Info:

Chamber w. cushion walls.
W3.55 W4.45 H2.5 meters
Source distances from microphones: around 100 cm

Scenario: The all four microphones were placed 3-dimensionally around the center of the room with height around 125 cm. The maximum distance between any two microphones was 5.7 cm.
The first three sources were placed at the same height with the microphones. The last source was placed at a different height.
Equipment: Sony ECM-77B omnidirectional microphones.
Yamaha HA8 microphone preamp.
Bose 101MM speakers with 1705II power amplifier were used for sources.
Dasbox model-500 for A/D and D/A converters.
  Two sources on Three sources on Four sources on
Microphone 1 room4_mic1_source1100.wav room4_mic1_source1110.wav room4_mic1_source1111.wav
Microphone 2 room4_mic2_source1100.wav room4_mic2_source1110.wav room4_mic2_source1111.wav
Microphone 3 room4_mic3_source1100.wav room4_mic3_source1110.wav room4_mic3_source1111.wav
Microphone 4 room4_mic4_source1100.wav room4_mic4_source1110.wav room4_mic4_source1111.wav

 

Room 5 recordings @ 16kHz

Room Info:

Chamber w. cushion walls.
W3.55 W4.45 H2.5 meters (the same room with room 4)
Source distances from microphones: around 180 cm

Scenario: The all four microphones were placed 3-dimensioanlly around the center of the room with height around 125 cm. The maximum distance between any two microphones was 5.7 cm.
The first three sources were placed at the same height with the microphones. The last source was placed at a different height.
Equipment: Sony ECM-77B omnidirectional microphones.
Yamaha HA8 microphone preamp.
Bose 101MM speakers with 1705II power amplifier were used for sources.
Dasbox model-500 for A/D and D/A converters.
  Two sources on Three sources on Four sources on
Microphone 1 room5_mic1_source1100.wav room5_mic1_source1110.wav room5_mic1_source1111.wav
Microphone 2 room5_mic2_source1100.wav room5_mic2_source1110.wav room5_mic2_source1111.wav
Microphone 3 room5_mic3_source1100.wav room5_mic3_source1110.wav room5_mic3_source1111.wav
Microphone 4 room5_mic4_source1100.wav room5_mic4_source1110.wav room5_mic4_source1111.wav

Room C recordings @ 44kHz (room 2 with new different sources)

Room Info:

Same as room 2.

Scenario: Similar to room 2. The exact placement of the microphones and of the sources, and their amplitudes, are different though.
Equipment: Behringer ECM8000 omnidirectional microphones.
SM Pro Audio PR4V microphone preamp.
Standard desktop mono PC speakers were used for sources.
Audiotrak Maya44USB soundcard for 4 channel recording.

  Two sources on Three sources on Four sources on
Microphone 1 roomC_mic1_source1100.wav roomC_mic1_source1110.wav roomC_mic1_source1111.wav
Microphone 2 roomC_mic2_source1100.wav roomC_mic2_source1110.wav roomC_mic2_source1111.wav
Microphone 3 roomC_mic3_source1100.wav roomC_mic3_source1110.wav roomC_mic3_source1111.wav
Microphone 4 roomC_mic4_source1100.wav roomC_mic4_source1110.wav roomC_mic4_source1111.wav

 

Room O recordings @ 44kHz (room 3, with different sources)

Room Info:

Same as room 3.

Scenario: Similar to room 3. The exact placement of the microphones and of the sources, and their amplitudes, are different though.
Equipment: Behringer ECM8000 omnidirectional microphones.
SM Pro Audio PR4V microphone preamp.
Standard desktop mono PC speakers were used for sources.
Audiotrak Maya44USB soundcard for 4 channel recording.

  Two sources on Three sources on Four sources on
Microphone 1 roomO_mic1_source1100.wav roomO_mic1_source1110.wav roomO_mic1_source1111.wav
Microphone 2 roomO_mic2_source1100.wav roomO_mic2_source1110.wav roomO_mic2_source1111.wav
Microphone 3 roomO_mic3_source1100.wav roomO_mic3_source1110.wav roomO_mic3_source1111.wav
Microphone 4 roomO_mic4_source1100.wav roomO_mic4_source1110.wav roomO_mic4_source1111.wav

 

Send Questions To

See also the FAQ page.

Questions regarding the recordings for room 1, room 2, room 3, room O, and room C, should be addressed to Mads Dyrholm. Questions regarding room 4 and room 5 should be addressed to Hiroshi Sawada.

Acknowledgement

The music used in these recordings for room 1, room 2, and room 3, was taken from "Germ Germ" by Das Böse Ding and has kindly been approved for public presentation by Jan Klare of Das Böse Ding in the name of research. Some of the music was writen and recorded by Mads Dyrholm. When using this data please acknowledge Mads Dyrholm, Hiroshi Sawada, and Lucas C. Parra.


Last modified April 19, 2006. Mads Dyrholm, Lucas C. Parra