DICOM PS3.5 2021e - Data Structures and Encoding

A.10 SMPTE ST 2110-30 PCM Audio Transfer Syntax

This Transfer Syntax is used in a DICOM-RTV Metadata Flow in order to describe the accompanying SMPTE ST21110-30 Audio Flow.

DICOM Attributes

Table A.10-1. ST 2110-30 and DICOM sampling frequency

ST 2110-30 Sampling Frequency

Sampling frequency(0003,001A)

44.1 kHz

44100

48 kHz*

48000

96 kHz

96000


Note

* 48 kHz is recommended by SMPTE

Table A.10-2. Waveform Sample Interpretation

Bit Depth

Waveform Bits Stored (003A,021A)

Waveform Bits Allocated (5400,1006)

Waveform Sample Interpretation (5400,1006)

Wave Sample Interpretation meaning

16

16

16

SS

signed 16-bit linear

16

16

16

US

unsigned 16-bit linear

24

24

24

OB

24 bit linear


Table A.10-3. Example of Number of Waveform Samples for 48kHz for basic Audio (Mono or Stereo)

Bit Depth

Waveform Bits Stored (003A,021A)

Numbers of Waveform Channels (003A,0005)

Number of Waveform Sample (003A,0010)

Resulting packet Length (1ms)

16

16

1

48

96

24

24

1

48

144

16

16

2

48

192

24

24

2

48

288


[SMPTE ST 2110-30] restricts the audio Flow:

A DICOM Transfer Syntax for SMPTE ST 2110-30 PCM Digital Audio shall be identified by a UID value of:

DICOM PS3.5 2021e - Data Structures and Encoding