Character position definition and scope:

A one-character alphabetic code indicates the configuration of playback channels for a sound recording.  Monaural, stereophonic, quadraphonic, and other configuration of playback channels should be coded based on a clear indication of intended playback.  These codes do not refer to the configuration of channels originally recorded, unless those channels are all intended to be available on playback.  A fill character ( | ) is used when no attempt has been made to code this position.

Record requirements for National-level and Minimal-level records:  Optional.

Guidelines for applying content designators:




Monaural  One channel.


Quadraphonic, multichannel, or surround  More than two channels.  Use this code for Dolby surround sound tracks and other multichannel techniques.


Stereophonic  Two separate channels.




Other  Configuration of playback channels for which none of the other defined codes is appropriate.


No attempt to code

Content designator history:

Character position 02 (Kind of sound) was moved to position 04 when field 007 was restructured in 1981.

In 1987, 007/04 was redefined for coding only configuration of playback channels characteristics when 007/13 (Capture and storage technique) was defined for coding how the sound was originally captured and stored.  The qualifier (electric) was removed from codes m (Monaural), q (Quadraphonic), and s (Stereophonic) for 007/04 and the following codes were made obsolete:

a - Acoustic

f  - Monaural (digital)

g - Quadraphonic (digital)

j  - Stereophonic (digital)

k - Other (digital)

o - Other (electric)

q - Quadraphonic  [renamed, 2014]

q - Quadraphonic, multichannel, or surround  [redescribed, 2014]

To return, select:

007:  Sound recording

007  Physical Description Fixed Field