Class Name: Sound

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

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

Primary Page in DRM Diagram:

• 22

Secondary Pages in DRM Diagram:

• 10

Example

1. A <Sound> instance represents the sound of a siren that can be used by different <Model> instances representing environmental objects such as ambulances, fire engines, or police vehicles.

FAQs

How can a data provider reference a <Sound> instance in a transmittal?

See <Sound Instance>.

Constraints

• <<Publishable Object>>

Associated by (one-way)

• zero or more <Sound Instance> instances

Composed of (two-way)

• zero or one <Classification Data> instance¹
• zero or one <Lineage> instance²

Composed of (two-way metadata)

• zero or one <Identification> instance³

Component of (two-way)

• one <Sound Library> instance

Inherited Field Elements

Field Elements

Notes

Composed of Notes

Classification_Data

Identification

Lineage

Fields Notes

name

The name field specifies a meaningful short name.

sound_format

The sound_format field specifies the sound format of the resource (see Annex C, 3 Sound_Format references).

sound_urn

The sound_urn field specifies a SEDRIS sound URN as defined in SE_URN.

duration

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

sampling_rate

The sampling_rate field specifies the number of samples per second (e.g., a standard Compact Disc has a sampling of 44.1 kHz, which is a sampling rate of 44100).

bits_per_sample

The bits_per_sample field is also called sample size or quantization (e.g., a standard Compact Disc has 16 bits per sample).

channel_count

The channel_count field specifies the number of sound channels.

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

method

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