M-Audio AUDIOPHILE USB Инструкция по эксплуатации онлайн [11/36] 7319

sampling clock. Continue reading this section for more information on

making selections in the Audiophile USB Control Panel.

Active Channels & Sample Depth: Activation of the Analog and

S/PDIF inputs and outputs is done with a set of four check boxes.Two radio

buttons allow selection between sample bit depths of 16-bit or 24-bit.

These settings will interact with each other, either expanding or limiting

your Active Ports, Sample Depth, and/or Maximum Sample Rate settings.

Using the full USB bandwidth will allow for 4x4 audio streams at 16 bits

with a sampling rate of 48kHz or below.A higher bit depth or sampling rate

will demand a trade-off from your system, which can be achieved by

disabling your Active Ports.

On the right side of the control panel there are two columns labeled

“Active Channels” (Analog and S/PDIF inputs and outputs) and “Sample

Depth” (16-bit and 24-bit). Choosing the 24-bit setting will allow your

music program to record at any bit depth up to 24-bit, depending on the

variety of selections within that program.

With any combination of three stereo pair “Active Ports” enabled, the

Audiophile USB is capable of 48kHz or 44.1kHz (or lower) sampling rates at

either 24- or 16-bits.When you uncheck and deactivate any one of the Active

Ports, the 24-bit option will become available. If you select the 24-bit radio

button, and then activate all four Active Ports, the control panel will

automatically switch back to the 16-bit setting and gray out the 24-bit option.

NOTE: Please exit any audio applications running before switching

between bit depths.

The Audiophile USB will perform at 96kHz sampling rate with any one of

the stereo pairs enabled, and with the 24-bit Sample Depth selected.This

is most useful if your CD/DVD player is capable of playing “audiophile”

96kHz recordings.The Audiophile USB will not operate at 96kHz when the

control panel is set to 16-bits.In the example below,Output 1&2 is enabled

and 24-bit Sample Depth is selected, with the Maximum sample rate

showing 96kHz.