Lynx Studio E44 - Manual (Page 41)

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The following parameters can be altered from the Lynx ASIO Control Panel:
1. Buffer Size - This control allows the size of the ASIO buffer in samples to be established.
The buffer size is the primary factor in the amount of latency that a user will experience
when using the Lynx card. See Section
8.2.1.4
Controlling Latency by Changing the Buffer Size
2. Latency – Displays the amount of latency in milliseconds that is the result of the selected
buffer size at the active sample rate.
3. Ignore Direct Monitor Requests - This switch causes the Lynx driver to disregard Direct
Monitor commands from an ASIO software application. Since Direct Monitor calls can
assign and mute monitor sources in the Lynx Mixer, setting this parameter to “ON”, can
prevent mixer settings from being changed when an ASIO application is launched.
4. DM Uses Active Devices - This switch sets the Direct Monitoring scheme for the
application. When unchecked, all devices (active or not) may be used for Direct Monitoring.
When checked, only active devices, or devices assigned to software busses, are used for
Direct Monitoring. This gets around a problem where Cubase & Nuendo might select the
wrong Direct Monitoring input or output if non-contiguous devices are active. This switch is
ON by default for most ASIO applications.
5. Maximum Channels – This switch determines how many ASIO device channels will be
available to the application. This is an application specific parameter. If different ASIO
applications are used at different times, it is possible to have them set differently.
The primary purpose for this switch is to increase CPU efficiency and to facilitate multi-
client operation. The default state is “unlimited”, which means that as many Lynx channels
are presented to the Operating System, a corresponding number of ASIO devices will appear
to the software. For instance, if one has 3 E44 cards installed, then 24 ASIO channels will be
presented to the audio software.
Most audio software allows the user to specify how many ASIO devices are used, generally
in a settings or options menu. There are some applications however that grab control over
ALL of the ASIO devices in the system. This can be problematic because it uses more CPU
power than is necessary, and also because there are no driver devices available to be used by
another application (multi-client operation).
In these cases, setting the MAXIMUM CHANNELS switch to the desired number of
channels, frees up some CPU overhead, and allows another application to access the channels
that the ASIO application is not using.