User guide

USING CLOCKWORKS FOR MAC OS X WITH THE MIDI TIMEPIECE AV 7
On a MIDI IN cable, data is muted before it enters the interface.
On a MIDI OUT cable, data gets muted just before it gets
transmitted out of the interface.
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When data is muted on a MIDI IN port, the light on the front
panel still blinks when the data is received on the port. Don’t be
concerned. The light blinks to let you know that the interface is
indeed receiving the data on that port. However, the data does get
muted. (On output, however, since muted data doesn’t actually
get sent, the light does
not blink.)
Whenever you would like to mute data, begin with the following
procedure:
1 If you have more than one MIDI Timepiece AV, select the box
you want to mute in the Device List window.
2 Click the Mutings tab.
3 Select the type of data to be muted from the Mute menu.
Doing so makes the check box grid control the type of MIDI data
you choose.
4 Choose Input or Output from the cables menu.
Doing so makes the check box grid control muting for either
MIDI IN ports or MIDI OUT ports.
Now you are ready to click check boxes in the grid to mute data.
Muting data on a single channel
To m u te d a t a on a single MIDI channel for a device, click the
appropriate check box in the grid. Check boxes are numbered
from left to right, with each row representing a MIDI input or
output port.
Muting a data type on all channels
To m u te a d at a type on all 16 channels for a device, drag across its
row of check boxes. Doing so will select all check boxes in the row,
selecting all channels for muting.
Muting on all channels, all cables
To m u te a d at a type on all channels and all inputs, choose Inputs
from the cable menu and click
Set All . To do the same for outputs,
choose
Outputs from the Cable menu and click Set All .
Unmuting data
To u n mut e d at a on a single channel, deselect its check box. To
unmute data on all channels and cables, click
Clear .
Muting MIDI beat clocks
When MIDI beat clocks are transmitted to the MIDI Timepiece
AV ( v i a a M I DI device or the computer) they are echoed to all
cables. If you do not want MIDI beat clocks sent to all your MIDI
devices, mute Real-time data on the output cables for those
devices.
Muting and remapping
On the MIDI IN ports, muting occurs before channel remapping.
On the MIDI OUT ports, channel remapping occurs before
muting, as shown in Figure 9.
For example, let’s say that on one of the MIDI ports, you are
muting channels 1-8, and you are also remapping all channels
(1-16) to channel 16.
If you did this on a MIDI IN port, channels 1-8 would get muted,
and the data on channels 9-16 would get mapped to channel 16. If
you did this on a MIDI OUT port, all data on all channels would
be sent out on channel 16, since all channels are mapped to
channel 16 before the muting occurs on channels 1-8.
Here’s another example: Let’s say you are mapping all channels to
channel 1, and you are muting channels 1-8.
On input, only channels 9-16 will get rechannelized to channel 1,
because channels 1-8 get muted first. On output, no data would be
sent because all channels are mapped to channel one first, and
then channel 1 is muted.
Figure 9: How muting and remapping interact with each other.
MIDI Timepiece AV data bus
Muting filter
Channel mapping filter
Muting filter
Channel mapping filter
MDI IN
MDI OUT