Mackie Onyx Blackbird Manuel du propriétaire télécharger pdf (Page 18)

18 Onyx Blackbird

30. BUFFER SIZE (PC Only)

The buffer size is related to latency, which describes

the amount of time it takes for audio to get in and out of

the software application. The lower the buffer size, the

lower the latency, and the faster audio gets in and out

of the software application. However, a low buffer size

requires more resources from the computer. Therefore,

you need to ﬁnd a happy balance between ﬁnding the

lowest latency attainable before the computer begins to

have trouble routing and recording audio (e.g. dropouts,

pops, distorted audio).

A DPC latency-checker [33] is also provided in the

settings tab to measure the computer's ability to handle

real-time audio streaming. The latency checker

provides a 'Recommended Operating Mode' that should

be employed on the bus tab [26] to experience the

fewest issues possible.

Computers that are ideal for handling audio will

run in "Normal" mode, and access buffer sizes all the

way down to 64 samples, Blackbird's fastest and most

resource-intensive supported buffer setting.

31. OPERATION MODE (PC Only)

Based on the computer's processing power and the

'Recommended Operating Mode' in the bus tab [26],

this dropdown allows two selections:

• NormalMode:Thissettingensuresthatinput

and output buffers are identical to the selected

buffer size.

• SafeModes1-3:Thesesettingsincreasethe

output buffer size for improved audio handling

while reducing the number of available buffer

sizes in the buffer size [30] dropdown.

There are several factors involved in determining

which mode to utilize. To achieve the best latency

possible for the interface, enable the bare minimum of

programs or functions for streaming audio. For example,

wireless' potential impact to DPC latency (and in turn,

available buffers for the Onyx Blackbird) is a common

culprit in real-time audio streaming issues.

32. WDM (PC Only)

In WDM mode, the Onyx Blackbird is a 2x2 device.

WDM audio, by default, is routed out of outputs 1 and 2

(main out L/R). Here you have the ability to route WDM

audio out of whatever output pair on the device desired.

Simply select "Set WDM Channel Maps" and use the

intuitive drag-and-drop interface that launches.

Similarly, it is possible to record any pair of inputs on

the device into applications that support WDM

recording.

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Mackie Onyx Blackbird Manuel du propriétaire Page 18

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