Yamaha A4000 Owner's Manual page 276
Professional sampler
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Also See for A4000:
- Owner's manual (27 pages) ,
- Supplementary manual (25 pages) ,
- Service manual (61 pages)
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MIDI Data Format
3. Realtime messages
3.1. Reception
3.1.1. Active sensing
Once active sensing is received, monitoring will begin, and if no MIDI input appears for an inter-
val longer than approximately 400 msec, the MIDI receive buffer will be cleared, and the tone
generator will be damped.
3.1.2 Timing Clock, Start, Continue, Stop
When Program LFO Sync is set to MIDI, the LFO frequency and phase, the frequency of tempo-
synchronized effects, and other time settings can be controlled via reception of Timing Clock
($F8), Start ($FA), CONTINUE ($FB) and STOP ($FC) messages.
4. UNIVERSAL SYSTEM EXCLUSIVE
4.1. SAMPLE DUMP STANDARD
Transmission occurs when sample bulk dump is carried out using Format=SDS#nnnn or a Sample
Dump Request is received.
The A5000/A4000 will automatically detect whether the MIDI connections are an open loop or a
closed loop, and will automatically switch to use or not use hand shaking.
When the channel number and device number matches for each message that message is effective.
The message is processed regardless of the device number when the received channel number is
$7F.
The sample number is in the range of 0-1024 (displayed as 1-1025), and samples will automati-
cally be assigned to sample objects. For transmission, these numbers or the specified number will
be used. For reception, sample numbers in the range of 0-16383 will be recognized, and the sam-
ple will be kept as"MIDI nnnnn" where sample number nnnnn is added to the name.
4.1.1. Dump Request
0
11110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
00000011
$03
4
0sssssss
sssssss = Sample number(LSB first)
5
0sssssss
sssssss =
6
01110111
$F7
When this message is received, the A5000/A4000 will search for the correspondingly-numbered
sample, and if that sample exists, a dump header will be transmitted. If the corresponding sample
does not exist, processing will be terminated.
This message is not transmitted.
4.1.2. ACK
0
01110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
01111111
$7F
4
0ppppppp
ppppppp = Packet number
5
01110111
$F7
This message indicates that the receiving device correctly received a packet. "Packet number"
indicates the number of the packet which was received correctly.
This message is transmitted and received.
4.1.3. NAK
0
01110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
01111110
$7E
4
0ppppppp
ppppppp = Packet number
5
01110111
$F7
This message indicates that the receiving device received a packet incorrectly. "Packet number"
indicates the number of the packet which was received incorrectly.
This message is transmitted and received.
4.1.4. Cancel
0
01110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
01111101
$7D
4
0ppppppp
ppppppp = Packet number
5
01110111
$F7
This message indicates that a dump is to be terminated. "Packet number" indicates the packet
which was terminated.
This message is transmitted and received.
4.1.5. Wait
0
01110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
01111100
$7C
4
0ppppppp
ppppppp = Packet number
5
01110111
$F7
This message indicates a pause during a dump.
This message is transmitted and received.
276
Appendix
• A5000/A4000
4.1.6. Dump Header
0
11110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
00000001
$01
4
0sssssss
sssssss = Sample number(LSB first)
5
0sssssss
sssssss =
6
0eeeeeee
eeeeeee = Sample format
7
0fffffff
fffffff = Sample period(LSB first)
8
0fffffff
fffffff =
9
0fffffff
fffffff =
10
0ggggggg
ggggggg = Sample length(LSB first)
11
0ggggggg
ggggggg =
12
0ggggggg
ggggggg =
13
0hhhhhhh
hhhhhhh = Sustain loop start point(LSB first)
14
0hhhhhhh
hhhhhhh =
15
0hhhhhhh
hhhhhhh =
16
0iiiiiii
iiiiiii = Sustain loop end point(LSB first)
17
0iiiiiii
iiiiiii =
18
0iiiiiii
iiiiiii =
19
0ppppppp
ppppppp = Loop type
20
11110111
$F7
This is the header portion of a dump.
Name
Range
Sample format
8 — 28
Sample period
0 — 2097151
Sample length
0 — 2097151
Sustain Loop start point
0 — 2097151
Sustain Loop end point
0 — 2097151
Loop type
$00/$01/$7F
$00=forward only,
$01=backward/forward,
$7F=Loop off
This message is transmitted and received.
4.1.7. Data Packet
0
11110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
00000010
$02
4
0ppppppp
ppppppp = Packet number
5
0ddddddd
ddddddd
124
0ddddddd
ddddddd
125
0lllllll
lllllll = Checksum
126
11110111
$F7
This is the data portion of a dump.
This message is transmitted and received.
4.2. MULTIPLE LOOP POINT MESSAGES
4.2.1. Loop Point Transmission
0
01110000
$F0
1
01111110
$7E
2
0nnnnnnn
nnnnnnn = Channel Number
3
00000101
$05
4
00000001
$01
5
0sssssss
sssssss = Sample number(LSB first)
6
0sssssss
sssssss =
7
0bbbbbbb
bbbbbbb = Loop number(LSB first)
8
0bbbbbbb
bbbbbbb =
9
0ccccccc
ccccccc = Loop type
10
0ttttttt
ttttttt = Loop start address(LSB first)
11
0ttttttt
ttttttt =
12
0ttttttt
ttttttt =
13
0eeeeeee
eeeeeee = Loop end address(LSB first)
14
0eeeeeee
eeeeeee =
15
0eeeeeee
eeeeeee =
16
11110111
$F7
This is loop point data.
Name
Range
Loop number
0 — 16383
Loop type
Loop start address
0 — 2097151
Loop end address
0 — 2097151
Contents
Number of bits in one sample word
Sample rate (nSec units)
Amount of data (word units)
Loop start address (word units)
Loop end address (word units)
Loop type
Sample data(120byte)
Contents
Loop number
16383 ($7F, $7F) means to delete all loops
$00/$01/$7F Loop type
$00=forward only,
$01=backward/forward,
$7F=Loop off
Loop start address (word units)
Loop end address (word units)
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