Expert Sleepers
Latency Fixer
v1.0.3
User Manual
Copyright © 2010 Expert Sleepers. All rights reserved.
This manual, as well as the software described in it, is furnished under licence and may be
used or copied only in accordance with the terms of such licence. The content of this manual is furnished for informational use only, is subject to change without notice, and should
not be construed as a commitment by Expert Sleepers. Expert Sleepers assumes no responsibility or liability for any errors or inaccuracies that may appear in this document.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Contents
Installation! 4
Mac OS X, Audio Unit (AU)! 4
Mac OS X, VST! 4
Windows (VST)! 4
System Requirements! 4
Mac OS X! 4
Windows! 4
How to use it! 5
In general! 5
AU specific instructions! 5
VST specific instructions! 5
Donationware! 7
Version History! 8
Contact! 9
Installation
Mac OS X, Audio Unit (AU)
The plug-in file is called ExSlLatencyFixer.component.
Simply copy the file to the folder:
Library/Audio/Plug-Ins/Components
Mac OS X, VST
The plug-in file is called ExSlLatencyFixer.vst.
Simply copy the file to the folder:
Library/Audio/Plug-Ins/VST
Windows (VST)
The plug-in file is called latencyfixer.dll.
Simply copy the file to your VST plug-ins folder.
System Requirements
Mac OS X
Latency Fixer requires at least Mac OS X version 10.5.8. The plug-in is Intel-only, and built
for both 32 and 64 bit. The Audio Unit version will work in any Audio Unit host. The VST
version requires a “VST 2.4” compatible host.
1
Windows
Latency Fixer has been developed and tested with Windows XP SP2. It may work with
other versions of Windows (Vista included) but this is by no means guaranteed. The plugin requires a “VST 2.4” compatible host.
1
VST is a trademark of Steinberg Media Technologies GmbH.
How to use it
In general
The plug-in reports to the host application that it has a latency (controlled by the plug-in
parameters) but does not actually apply any processing to the audio signal. This causes the
host to use its own latency compensation to advance the audio fed into the plug-in by the
requested amount.
This is useful to compensate for e.g. routing audio via outboard effect processors, where
the audio's journey out of your audio interface and back in to the computer introduces a
latency into the signal. For example you may find it useful in conjunction with Logic's
Helper->I/O plug-in.
For it to work, the host application must support 'plug-in delay compensation' and the feature must be turned on. Most recent versions of all the major DAWs support this.
In general applications will not respond to changes in the latency setting during playback.
If you need to interactively set the latency, try setting this plug-in to a large setting and
then using my Buffer Delay plug-in to experiment with different settings. Once you've
found the correct values, subtract the Buffer Delay delay from the latency setting and remove the Buffer Delay plug-in.
AU specific instructions
Some old AU hosts (e.g. Logic 6) do not respond to changes of latency at all, even when
playback is stopped. As a workaround, Latency Fixer remembers its last used settings and
uses them as defaults when creating a new instance of the plug-in, which is the only time
these hosts query the latency.
Most recent hosts correctly respond to changes in latency reported by the plug-in, though
possibly only applying the changes when the transport is stopped and re-started, as noted
above.
VST specific instructions
Unfortunately VST hosts do not respond to changes of latency at all, even when playback
is stopped. As a workaround, Latency Fixer remembers its last used settings and uses
them as defaults when creating a new instance of the plug-in, which is the only time VST
hosts query the latency. So the required setup is as follows:
•
Load the Latency Fixer plug-in on a track.
•
Set the desired latency via the plug-in’s parameters.
•
Unload the plug-in.
•
Load the plug-in again.
At this point the host will read the previously set values and use that latency. If you need
to change the latency again, you need to unload and reload the plug-in again.
Donationware
This software is free - you may use it however you see fit. However you may not redistribute it, pass it off as your own, charge money for it etc.
This software comes with no warranty (it's free after all!). Having said that I'm more than
happy to hear from you if you find a problem & most likely I'll do my best to fix it.
Please support my work by buying one of my CDs - follow the links on the website, or go
to www.burningshed.com/store/darkroom/
You can also donate via PayPal - just follow the link on the website
(www.expert-sleepers.co.uk/downloads.html).
Version History
1.1.0 10/3/2010
•
First 64 bit AU release.
•
First VST releases.
1.0.2 12/6/2008
•
Fixed a problem where the correct latency would not be applied when recalling a
preset.
1.0.1 6/5/2006
•
First Universal Binary version.
1.0.0 31/10/2004
•
First release (AU only).
!
Contact
The Expert Sleepers website is here:
http://www.expert-sleepers.co.uk/
Or you can email
info@expertsleepers.co.uk
Or you can use the forum, which is here:
http://www.kvraudio.com/forum/viewforum.php?f=85
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