M-Audio Delta RBUS Инструкция по эксплуатации онлайн [28/60] 19013

audio software application to this same sample rate or else the

application will display an error message.

NOTE: When R-BUS PCI is the master clock source, the

digital monitor mixer will run at the sample rate received at

the R-BUS internal sync connector. Since frequency

response and sample rate are directly related, the mixer

frequency response will be directly related to the sample

rate of the S/PDIF input data.

MULTITRACK DRIVER DEVICES

The Delta R-BUS drivers intelligently synchronize the beginning of

recording and playback across all audio devices on the board. When

using application software that is capable of using multiple channels

simultaneously, select "Single and In-Sync" to ensure that all audio

channels will begin playback and/or recording at the same time.

Otherwise select "Independent" to allow the audio channels to play

independently – this setting may be desirable if more than one

application needs to access the Delta R-BUS simultaneously.

The selection “Multi-card Sync” will remain grayed out until a second

Delta PCI card (of which there are a variety) is installed in the system.

When you wish to synchronize two (or more, up to four) Delta cards,

select Multi-card Sync on the second and successive cards. This is done to

ensure that playback starts simultaneously on multiple cards.

Then, all cards must be synchronized via wordclock in some fashion. If

you have multiple Delta R-BUS cards, you can synchronize them using

the internal sync connectors on the PCI card. Output of the first, or

“master” card connects to the input of the second card, then the sync out

of the second card connects to the third, etc. The master card may derive

its clock from internal or external clocks, while all subsequent cards

should be set to “R-BUS PCI” as their clock source.

You may also synchronize via S/PDIF. Select S/PDIF as your master

clock on the second and subsequent cards, and connect the S/PDIF

output of the first card to the S/PDIF input of the second card, etc. These

settings ensure that when the application goes into record or playback, it

waits until all audio ports are open before it commences with recording

or playback of audio.

DMA BUFFER SIZES

This section specifies the amount of system memory dedicated to digital

audio buffering. Setting a buffer size that is too small may result in clicks