The table bellow details what will be seen on the meter and heard on the monitor according to Ardour's settings.

RefMonitoring Mode
(System Prefs)
Tape Machine Mode
(System Prefs)
Track
Rec Enable
Master
Rec Enable
TransportAuto Input
(Session Props)
Meter
(What you see)
Monitor
(What you hear)
1ArdourOffOffOffOnInputInput
2ArdourOffOffOffOffDisk (Silence)Disk (Silence)
3ArdourOffOffOffOnDisk (Audio)Disk (Audio)
4ArdourOffOffOffOffDisk (Audio)Disk (Audio)
5ArdourOffOffOnOnInputInput
6ArdourOffOffOnOffDisk (Silence)Disk (Silence)
7ArdourOffOffOnOnDisk (Audio)Disk (Audio)
8ArdourOffOffOnOffDisk (Audio)Disk (Audio)
9ArdourOffOnOffOnInputInput
10ArdourOffOnOffOffInputInput
11ArdourOffOnOffOnInputDisk (Audio)
12ArdourOffOnOffOffInputInput
13ArdourOffOnOnOnInputInput
14ArdourOffOnOnOffInputInput
15ArdourOffOnOnOnInputInput
16ArdourOffOnOnOffInputInput
17ArdourOnOffOffOnDisk (Silence)Disk (Silence)
18ArdourOnOffOffOffDisk (Silence)Disk (Silence)
19ArdourOnOffOffOnDisk (Audio)Disk (Audio)
20ArdourOnOffOffOffDisk (Audio)Disk (Audio)
21ArdourOnOffOnOnDisk (Silence)Disk (Silence)
22ArdourOnOffOnOffDisk (Silence)Disk (Silence)
23ArdourOnOffOnOnDisk (Audio)Disk (Audio)
24ArdourOnOffOnOffDisk (Audio)Disk (Audio)
25ArdourOnOnOffOnInputInput
26ArdourOnOnOffOffInputInput
27ArdourOnOnOffOnInputDisk (Audio)
28ArdourOnOnOffOffInputInput
29ArdourOnOnOnOnInputInput
30ArdourOnOnOnOffInputInput
31ArdourOnOnOnOnInputInput
32ArdourOnOnOnOffInputInput
33Audio HardwareOffOffOffOnInputSilence
34Audio HardwareOffOffOffOffDisk (Silence)Disk (Silence)
35Audio HardwareOffOffOffOnDisk (Audio)Disk (Audio)
36Audio HardwareOffOffOffOffDisk (Audio)Disk (Audio)
37Audio HardwareOffOffOnOnInputSilence
38Audio HardwareOffOffOnOffDisk (Silence)Disk (Silence)
39Audio HardwareOffOffOnOnDisk (Audio)Disk (Audio)
40Audio HardwareOffOffOnOffDisk (Audio)Disk (Audio)
41Audio HardwareOffOnOffOnInputHW Pass Through
42Audio HardwareOffOnOffOffInputHW Pass Through
43Audio HardwareOffOnOffOnInputDisk (Audio)
44Audio HardwareOffOnOffOffInputHW Pass Through
45Audio HardwareOffOnOnOnInputHW Pass Through
46Audio HardwareOffOnOnOffInputHW Pass Through
47Audio HardwareOffOnOnOnInputHW Pass Through
48Audio HardwareOffOnOnOffInputHW Pass Through
49Audio HardwareOnOffOffOnDisk (Silence)Disk (Silence)
50Audio HardwareOnOffOffOffDisk (Silence)Disk (Silence)
51Audio HardwareOnOffOffOnDisk (Audio)Disk (Audio)
52Audio HardwareOnOffOffOffDisk (Audio)Disk (Audio)
53Audio HardwareOnOffOnOnDisk (Silence)Disk (Silence)
54Audio HardwareOnOffOnOffDisk (Silence)Disk (Silence)
55Audio HardwareOnOffOnOnDisk (Audio)Disk (Audio)
56Audio HardwareOnOffOnOffDisk (Audio)Disk (Audio)
57Audio HardwareOnOnOffOnInputHW Pass Through
58Audio HardwareOnOnOffOffInputHW Pass Through
59Audio HardwareOnOnOffOnInputDisk (Audio)
60Audio HardwareOnOnOffOffInputHW Pass Through
61Audio HardwareOnOnOnOnInputHW Pass Through
62Audio HardwareOnOnOnOffInputHW Pass Through
63Audio HardwareOnOnOnOnInputHW Pass Through
64Audio HardwareOnOnOnOffInputHW Pass Through