Table 6.241 — DRM_Sound

Property

Description

Class
  • <DRM Sound>

Superclass

Subclass
  • None.

Definition

An instance of this DRM class specifies a digital representation of an acoustic phenomenon.

The name field specifies a meaningful short name.

The sound_format field specifies the sound format of the resource.

The sound_urn field specifies a SEDRIS sound URN, in the form urn:x-sedris:<DNAS>:sound=<SN> where:
<DNAS> is domain name authority name string, and
<SN> is a scoped sound resource name string.

The duration field specifies the length of the sound clip in seconds.

The sampling_rate field specifies the number of samples per second. For example, a standard CD has a sampling of 44.1 kHz, which would be a sampling rate of 44100.

The bits_per_sample field is also called sample size or quantization; for example, a standard CD has 16 bits per sample.

The channel_count field specifies the number of sound channels.

NOTE  A channel_count of 1 = monophonic, 2 = stereophonic.

The method field specifies the encoding scheme and compression scheme used, if any.

Clarifications

1 If provided, this identifies the phenomenon represented by the given instance of <DRM Sound>.

2 If provided, the <DRM Description> component may be used to provide a more detailed description than that specified by the name field.

3 If provided, this specifies either

  • information about the events and/or source data used in constructing the given <DRM Sound> instance, or
  • lack of knowledge about lineage.

Class diagram

Figure 6.288 — DRM_Sound

Inherited field elements

Field name

Range

Field data type

None

    

Field elements

Field name

Range

Field data type

name

 

String

sound_format

 

Sound_Format

sound_urn

 

URN

duration

 

Float

sampling_rate

 

Float

bits_per_sample

 

Byte_Positive

channel_count

 

Byte_Positive

method

 

String

Associated to (one-way) (inherited)
  • None.

Associated to (one-way)
  • None.

Associated by (one-way) (inherited)
  • None.

Associated by (one-way)

Associated with (two-way) (inherited)
  • None.

Associated with (two-way)
  • None.

Composed of (two-way) (inherited)
  • None.

Composed of (two-way)

Composed of (two-way metadata) (inherited)
  • None.

Composed of (two-way metadata)

Component of (two-way) (inherited)
  • None.

Component of (two-way)

Constraints

Example(s)

  • A sound, such as a siren that can be used by different models such as ambulances, fire engines, or police vehicles.