JEITA CP-3451
- 120 -
B.3
IMA-ADPCM Audio Data
Table 46 IMA-ADPCM Audio File Description Sample Contents
Audio Data
Format Type
IMA-ADPCM Format
Channels
stereo
Sampling Frequency
8.000 kHz
Bytes per Block
8110 bytes/sec
Bits per Sample
4 bits/sample
Total Data Bytes
35840 bytes
Attribute Information
Audio Title
IMA-ADPCM ExampleZ
Audio Genre
None
Recording Date
1997-08-11Z
Comment
None
Recording Engineer
Hanako YamadaZ
Copyright
Copyright XYZ on 1997.Z
Exif-specific Information
Exif Version
0200 (Version 2.0)
Related Exif Image File
DSC00001.JPGZ
Recording Start Time
15:14:13.135Z
Recording Equipment Manufacturer
DSC Interoperability CorporationZ
Recording Equipment Model
DSC Camera-2Z
Manufacturer Note
None
User Comment
None
Table 47 IMA-ADPCM Audio File Description Example
Offset
(Hex)
Name
Comment
Data
(Hex or "ASCII")
RIFF-ck
0000
ckID
RIFF
52494646
0004
ckSize
248D0000
0008
formType
WAVE
57415645
fmt-ck
000C
ckID
"fmt_"
666D7420
0010
ckSize
IMA-ADPCM Format
14000000
0014
wFormatTag
1100
0016
nchannels
stereo
0200
0018
nSamplesPerSec
8.0kHz
401F0000
001C
nAvgBytesPerSec
8110 bytes/sec
AE1F0000
0020
nBlockAlign
512 bytes/block
0002
0022
wBitsPerSample
4 bits/sample
0400
0024
cbSize
Additional bytes = 2
0200
0026
wSamplesPerBlock
505 bytes/block
F901
fact-ck
0028
ckID
fact
66616374
002C
ckSize
04000000
0030
dwSampleLength
35350 samples
168A0000
INFO-LIST
0034
ckID
LIST
4C495354
0038
ckSize
68000000
003C
listType
INFO
494E464F
INAM-ck
0040
ckID
INAM
494E414D
0044
ckSize
12000000
0048
ckData
(audio title)
"IMA-ADPCM Example"00
IGNR-ck
0058
ckID
IGNR
49474E52
005C
ckSize
09000000
0060
ckData
(recording genre)
"Greeting"Z