Ardour can using more than one audio device, this subchapter no longer applies
This commit is contained in:
parent
4cc13ce297
commit
1577f51d7f
@ -1,86 +0,0 @@
|
||||
|
||||
<p>
|
||||
Ardour will only ever deal with a single <dfn>audio device</dfn>. When it is
|
||||
desired to use more than one audio device at the same time, there are two
|
||||
choices:
|
||||
</p>
|
||||
|
||||
<ul>
|
||||
<li>Use Ardour to start JACK (which handles all audio I/O), and create a
|
||||
"fake" audio device which represents all the multiple devices to be used. How
|
||||
to do this is platform dependent and described below.</li>
|
||||
<li>Use a different tool to start JACK and manage all the devices.</li>
|
||||
</ul>
|
||||
|
||||
<p>
|
||||
Ardour is fundamentally designed to be a component in a pro-audio/music
|
||||
creation environment. Standard operating practice for such setups involves
|
||||
using only a single digital <dfn>sample clock</dfn> (something counting off
|
||||
the time between audio samples). This means that trying to use multiple
|
||||
independent soundcards is problematic, because each soundcard has its own
|
||||
sample clock, running independently from the others. Over time, these
|
||||
different clocks <dfn>drift</dfn> out of sync with each other, which causes
|
||||
glitches in the audio. This drift cannot be stopped, although in some cases
|
||||
the effects may be insignificant enough that they might not be noticeable.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
Thus, in an ideal world, a single device with a single clock and all the inputs,
|
||||
outputs and other features needed should be used. Of course, there are those
|
||||
who like to point out that this is not an ideal world, and believe that software
|
||||
should make up for this.
|
||||
</p>
|
||||
|
||||
<h2>OS X</h2>
|
||||
|
||||
<p>
|
||||
In CoreAudio, <dfn>aggregate devices</dfn> provide a method to use multiple
|
||||
soundcards as a single device. For example, two eight-channel devices can be
|
||||
aggregated so that 16 channels can be recorded in Ardour.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
Another example is using Soundflower to route audio to Ardour. To output the
|
||||
audio through the speakers you will have to create an aggregate device to specify
|
||||
Soundflower as the input and Built-in-Output as the output. In the Audio/MIDI Setup
|
||||
in Ardour specify the aggregate device as both the Input and Output devices. And then
|
||||
on the master track ensure you have specified the correct output channels. For example,
|
||||
if you are using Soundflower(64) as input, Channels 65/66 will be the output
|
||||
channels on your master track.
|
||||
</p>
|
||||
|
||||
<div class="note">
|
||||
<p>
|
||||
When using a <em>single</em> typical 3rd party audio interface (such as those
|
||||
from Apogee, RME, Presonus, and many others), <em>or</em> using JackPilot or
|
||||
a similar application to start JACK, there is no need to worry about any of
|
||||
this. An aggregate device only needs to be set up if any of the following
|
||||
conditions are true:
|
||||
|
||||
<ul>
|
||||
<li>Two entirely separate devices are used <em>and</em> JACK is started using
|
||||
Ardour</li>
|
||||
<li>A <dfn>builtin audio device is used</dfn> <em>and</em> JACK is started
|
||||
using Ardour</li>
|
||||
<li>More than two entirely separate devices are used</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<p>
|
||||
In the case of a builtin audio device, an aggregate device that combines
|
||||
"Builtin Input" and "Builtin Output" into one device needs to be created.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
The precise instructions for creating an aggregate device on OS X have varied
|
||||
from one released to another. Please read <a
|
||||
href="https://support.apple.com/en-us/HT202000">https://support.apple.com/en-us/HT202000</a>.
|
||||
</p>
|
||||
|
||||
<h2>Linux</h2>
|
||||
|
||||
<p>
|
||||
Please see the instructions at <a href="http://jackaudio.org/faq/"
|
||||
title="http://jackaudio.org/faq/">http://jackaudio.org/faq</a>.
|
||||
</p>
|
||||
|
@ -216,15 +216,6 @@ uri: setting-up-your-system/connecting-audio-and-midi-devices
|
||||
part: subchapter
|
||||
---
|
||||
|
||||
---
|
||||
title: Using More Than One Audio Device
|
||||
menu_title: More Than One Audio Device
|
||||
include: using-more-than-one-audio-device.html
|
||||
link: using-more-than-one-audio-device
|
||||
uri: setting-up-your-system/using_more_than_one_audio_device
|
||||
part: subchapter
|
||||
---
|
||||
|
||||
---
|
||||
title: Monitor Setup in Ardour
|
||||
menu_title: Monitor Setup in Ardour
|
||||
|
Loading…
Reference in New Issue
Block a user