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190 Chapter 17—Digital Audio I/O
D24—Owner’s Manual
Care must be taken when transferring high-resolution digital audio directly from the
D24’s COAXIAL OUTPUT to a low-resolution device. In the following example, the
20-bit digital audio from the D24 will be truncated by the 16-bit DAT deck, resulting in
distortion and graininess.
If the device receiving the high-resolution signal does not feature digital dither, an
external digital audio processor with digital dither function can be used to truncate the
signal, as shown below.
00000000
YAMAHA D24
OVER
READY
0
2
6
1012
1420
1830
20
42
2660
–dB
OVER
ABS H
LOCK
TIME DISPLAY
CAPTUREABS/REL
REMAIN
VARI
SPEED
UTILITY
SETUP
PROJECT
SELECT
LOC MEM
RECALL
LOC MEM
STORE
LOCATEENTERCANCEL
0/-
1
4
7
8
R
7654321
RECORD
READY
SOLO/
SELECT
MONITOR SELECT
PEAK
HOLD
AUTO
INPUT
ALL
INPUT
FORMATCHASE
L
2
5
8
3
6
9
UNDO/
REDO
EDIT
JOG ON
JOG/DATASHUTTLE/
CURSOR
PROJECT SEARCH
RTN TO
ZERO
REW FF
STOP PLAY REC
ROLL
BACK
LAST REC
SET
DIGITAL MULTITRACK RECORDER
REPEAT
REHE
PHONES
LEVEL
010
ON
POWER
OFF
PHONES
BA
B
A
AUTO
PUNCH
IN
OUT
INT
24
48K
MASTER
WC
BIT
FS
TC
MSF
READY
0
2
6
12
20
30
42
60
–dB
V. TR A C K
SELECT
D24
Recording resolution: 20-bit
The 4 least-significant bits of each sample are
discarded by the DAT, resulting in distortion.
S/PDIF (20-bit)
Digital In
COAXIAL
OUTPUT
Recording resolution: 16-bit
DAT
00.00.00.00
DAT
00000000
YAMAHA D24
OVER
READY
0
2
6
1012
1420
1830
20
42
2660
–dB
OVER
ABS H
LOCK
TIME DISPLAY
CAPTUREABS/REL
REMAIN
VARI
SPEED
UTILITY
SETUP
PROJECT
SELECT
LOC MEM
RECALL
LOC MEM
STORE
LOCATEENTERCANCEL
0/-
1
4
7
8
R
7654321
RECORD
READY
SOLO/
SELECT
MONITOR SELECT
PEAK
HOLD
AUTO
INPUT
ALL
INPUT
FORMATCHASE
L
2
5
8
3
6
9
UNDO/
REDO
EDIT
JOG ON
JOG/DATASHUTTLE/
CURSOR
PROJECT SEARCH
RTN TO
ZERO
REW FF
STOP PLAY REC
ROLL
BACK
LAST REC
SET
DIGITAL MULTITRACK RECORDER
REPEAT
REHE
PHONES
LEVEL
010
ON
POWER
OFF
PHONES
BA
B
A
AUTO
PUNCH
IN
OUT
INT
24
48K
MASTER
WC
BIT
FS
TC
MSF
READY
0
2
6
12
20
30
42
60
–dB
V. TR A C K
SELECT
D24
Recording resolution: 20-bit
S/PDIF (20-bit) S/PDIF (16-bit)
Digital In
COAXIAL
OUTPUT
Recording resolution: 16-bit
DAT
00.00.00.00
DAT
Digital audio processor with digital dither function