The number of apparent playback channels can differ from the number of physical channels of the recording medium, i.e., 2-track monophonic recordings. In this example, the trackConfig element should record the fact that there are two physical tracks on the sound medium, while the <soundChan> element should be used to state that there is a single output channel. This element may be mapped to MARC field 344 subfield e or subfield f as appropriate.
<elementSpec ident="trackConfig" module="MEI.header">
<gloss xml:lang="en">track configuration</gloss>
<desc xml:lang="en">Number of physical/input tracks on a sound medium (
<abbr>e.g.</abbr>, eight
track, twelve track).</desc>
<classes>
<memberOf key="att.common"/>
<memberOf key="att.authorized"/>
<memberOf key="att.bibl"/>
<memberOf key="att.lang"/>
<memberOf key="model.physDescPart"/>
</classes>
<attList>
<attDef ident="num" usage="opt">
<desc xml:lang="en">Records the track configuration in numeric form.</desc>
<datatype>
<rng:data type="positiveInteger"/>
</datatype>
</attDef>
</attList>
<remarks xml:lang="en">
<p>The number of apparent playback channels can differ from the number of physical channels
of
the recording medium,
<abbr>i.e.</abbr>, 2-track monophonic recordings. In this example, the trackConfig
element should record the fact that there are two physical tracks on the sound medium,
while
the <gi scheme="MEI">soundChan</gi> element should be used to state that there is a single
output channel. This element may be mapped to
<abbr>MARC</abbr> field 344 subfield e or subfield f as
appropriate.</p>
</remarks>
</elementSpec>