Hardware Settings Page; Master Clock; Codec Sample Rate; S/Pdif Sample Rate - M-Audio Audiophile 192 User Manual

Hardware Settings Page

The Hardware Settings page provides access to master clock settings, sample rate settings, buffer settings and more.

Master Clock

This section selects the source of the master clock. Internal (default setting) selects the Audiophile 192's internal clock, while S/PDIF In selects the
clock received through the S/PDIF input stream.
If Internal is selected, the status display will always show Locked. If S/PDIF is selected, the display will only show Locked when a valid S/PDIF signal
is detected at the input. It will display Unlocked if there is no valid S/PDIF input, or if the input signal is incorrect. When syncing to an external clock,
that external clock's sample rate must be selected manually on this page to allow proper synchronization.

Codec Sample Rate

This section allows you to select a sample rate for recording a new file. (When set to internal clock, the file's sample rate will automatically be
selected here.) Note that it is possible to manually set the playback sample rate when playback is idle, otherwise the sample rate selected in your
DAW software will be mirrored here. Note that changing sample rate in your DAW application will override this panel's selections.
To prevent your DAW from controlling the sample rate, checking the Rate Locked box will retain the selected sample rate, regardless of the
incoming sample rate. The Reset Rate When Idle box will prevent the sample rate from changing even if the incoming sample rate changes while
recording.

S/PDIF Sample Rate

When synced to external clock via S/PDIF, you must set the sample rate manually on this page to match that of your external clock source.

MultiTrack Driver Devices

As with all M-Audio Delta series audio devices, the Audiophile 192 is capable of synchronizing with multiple Delta cards when running DAW
software that supports simultaneous multiple channels.
Selecting "Single (In-Sync)" forces all audio channels to begin recording or playback at the same time.
Selecting "Independent" will allow all channels to record or play back independently. This may be desirable if more than one application needs to
address the Audiophile 192 simultaneously.
The third option, "Multiple Card Sync" is available only when more than one Delta device is installed. This selection will force all channels across
all devices to begin recording or playback simultaneously.

DMA Buffer Sizes (Windows only)

This section allows you to specify the amount of memory allocated to audio buffering. Generally, smaller buffer sizes decrease latency but can
also affect the stability of some slower systems. If you detect crackling, stuttering or other audio artifacts during playback, try increasing the buffer
size.
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