ACID Tips
Sony ACID Pro 4.0/5.0 Tips and Techniques
I use Sony ACID Pro 5.0 as my primary music composition tool.
I like to write music in sections and the looping ability of
ACID allows me to literally paint the sections of a song and
arrange them any way I want and then sit back and listen to see
if I like it. Because I'm a keyboard player, I use a MIDI
keyboard to record all of my piano and organ parts. Here are
just a few of the tips and techniques I've developed while doing
this. Hopefully you'll find some of them useful. I'm a forum
host on
DMN ACID forum so you can ask me questions by posting there.
Before you do anything, make sure you have the latest copy of
ACID installed. For ACID 5.0 there are no updates yet but for
ACID 4.0 the latest update is 4.0f. Some of the features
explained below were added in subsequent fixes of ACID 4.0. Some
major functions like ReWire support were added in 4.0c so make
sure you download the latest updates from the
Sony site. If you use ACID Pro 5.0 you already have all of
this and more.
Also make sure your PC is optimized for audio. If you aren't
sure how to do this visit
MusicXP.net
for some great tips on how to set up Windows XP for audio.
You might also want to download the
GenieSys OPT plugins for ACID which include a MIDI Editor,
and some utilities like StolenTrack to break multi-track MIDI
files into separate ACID tracks. Very useful.
For more great Tips, please consider buying my book
Instant ACID.
How do I get started?
To really get a jump start on learning ACID, I highly
recommend the
VASST ACID® for Nonlinear Editors training DVD by Rudy Sarzo.
It's not just for non-linear editors and it will get you up and
running very quickly. You can read my review of this training
DVD on the
Digital Media Networks site. Jeffery Fisher also has a great
beginner
ACID Tutorial on his site.
Can I create my own loops?
Yep, you sure can. You can create loops from other loops
using the Chopper (although you can do it without the chopper
too), you can record your own audio loops, or you can record
your own MIDI loops. I find loop creation to be quite easy which
is one of the reasons I use ACID.
What I do is record a new MIDI track and play my part several
times. Once I think I’ve captured enough good ones. I go back
and listen to the track and highlight the measure I like best
and choose Select in Chopper. I listen to it looped in
the chopper to make sure it loops smoothly. If it doesn't I'll
open the MIDI editor and tweak the note positions until it does.
Then I select Chop to New Track... and I save the final
loop. If I want that as a WAV file I just solo it and do a
Render As... using Render Looped Region Only. If you
started with an audio loop there is no need to render. I can’t
imagine it being any easier.
How do you record without a metronome?
(in ACID 4)
ACID Pro 4 doesn't have a metronome. I find this to very strange
for a music composition program with record capabilities but its
true. What I find helpful is to add a drum track to the project
first to help you keep time. You can always replace it later.
It's kind of like the old days of analog recording when the
first thing you would do is lay down a click track. I actually
recorded the metronome from Vegas and a WAV file and I use that
sometimes to lay down a click track in ACID. (ACID Pro 5 does
have a metronome but I still like using drum tracks better)
How do I record with MIDI and VSTi's in ACID?
If you want to record MIDI you'll need a MIDI keyboard
connected to a MIDI interface on your computer. This can be
provided by a sound card or dedicated MIDI interface such as a
USB device. Once the hardware is hooked up, you need to go into
menu Options->Preferences and click on the MIDI tab. This is
where to designate your MIDI input and output devices. Once
you've done this, click on the VST Instruments tab and make sure
your VSTi's are listed there with a checkmark next to them. If
not, add the directory that they are in to the search list so
ACID 4 can find them.
Now you're ready to use a softsynth. Select menu Insert->Soft
Synth and then select one of your VSTi's. This will bring up the
softsynth properties dialog. The first button at the top right
looks like a MIDI connection and if you hover your mouse over
it, it will say "Enable Realtime MIDI Alt-F7". Press it (or
press Alt-F7) so that its selected and you should be able to
play your MIDI keyboard and hear the softsynth.
To record, just press the record button and select MIDI as
the option at the top. Modify the filename and location if you
wish, and at the bottom select the correct Record device (this
should be your MIDI input device) and the correct MIDI Thru
device which should be your softsynth. Finally press Start and
begin to play.
I installed a new VSTi but ACID doesn't see it. What do I
do?
The first thing you should do is to make sure ACID is pointed
to the VST Instrument directory that you installed you
instrument to. These can be found on the Options >
Preferences... > VST Instruments page. The default path is
"C:\Program Files\VSTplugins\" but if you have any Steinberg
applications installed your path may be "C:\Program
Files\Steinberg\VSTplugins\". Unfortunately some Steinberg
programs keep plug-ins in their own directory so you need to
know which directory the plug-in was installed into.
If you have the right directories but your VSTi still doesn't
show up in the VST Instrument list, go back into Options >
Preferences... > VST Instruments and press the Refresh
button. This will forge a refresh of all the plug-ins in all the
search directories.
If both of these methods fail, you may need to manual delete
the ACID presets from the Windows registry so that it is forced
to build the list again. Here are the instructions on how to do
that:
First, if you have XP, create a restore point on your
computer. If you don’t know how to do this, go to Start > All
Programs > Accessories > System Tools > System Restore.
Click Create a Restore Point and press Next. Give
the restore point a name like "Before I deleted Plugs from the
registry" and press Create. Now if you mess things up,
you can go back here and select Restore my computer to an
earlier time, and it will undo any changes you’re about to
make. OK, that was only a precautionary measure. Now on to what
you really have to do:
Close ACID. Select Start > Run... Then in the Open:
entry field type regedit. This will bring up the Registry
Editor. In the left window you'll notice a tree view starting
with My Computer and one of the registry hives under it
will be HKEY_CURRENT_USER. Open that and you'll see an
entry at the next level called Software. Open that and
find Sonic Foundry then ACID etc. until you've
navigated all the way down through this path:
ACID Pro 4.0 Path:
HKEY_CURRENT_USER\Software\Sonic
Foundry\ACID\4.0\Metrics\VSTi Synth\Plugs
ACID Pro 5.0 Path:
HKEY_CURRENT_USER\Software\Sony
Media Software\ACID Pro\5.0\Metrics\VSTi
Synth\Plugs
ACID Pro 6.0 Path:
HKEY_CURRENT_USER\Software\Sony
Media Software\ACID Pro\6.0\Metrics\VSTi
Synth\Plugs
Right-click on the Plugs entry and select Export...
from the pop-up context menu. This will let you save a backup of
the registry entry you are about to delete. Give it a name
(e.g., "old-plugs.reg"), remember where you saved it, and press
OK. Now with the Plugs key highlighted, just press the
delete key or right-click and select delete from the
context menu.
Close the Registry Editor and open ACID and it should rescan
for all the plugins and find the missing ones.
Once again, if you’re not comfortable with editing the
registry, find someone who is or call the Sony help desk. You
can seriously disable your computer by deleting the wrong thing.
You can always get the old plugs back by double-clicking on the
"old-plugs.reg" file that you saved to have the registry entry
put back in. As a last resort you can use system restore to put
everything back the way it was.
How do I get rid of the delay when I play my MIDI keyboard?
If you have a sound card that supports Audio Streaming Input
Output (ASIO) then you want to
use the ASIO drivers. Go into Options->Preferences and
click on the Audio tab. Look under Audio device type:
(it probably says Microsoft Sound Mapper) see if there is an
option that says ASIO in it. It if does select that. You may
also have to press the Advanced button at the bottom of
that dialog and configure the drivers to lower the ASIO buffer
latency.
If you don’t have an ASIO capable sound card then adjust the
Playback buffering (seconds): on that same dialog to see
how low you can get it before the sound breaks up. It will not
be as good as ASIO but it will make the delay shorter.
If you're going to use a MIDI keyboard, you really need to
get an ASIO capable sound card.
How do you assemble a song with verse, chorus, bridge, etc.?
You have to think a little different in ACID because it only
allows one sound file per track but it’s a very powerful
concept. Here’s what I do. Record the verse once on its own
track. Then just paint the verse how ever many times you want it
on the track (no need to cut and paste). Record the chorus on
the next track. Paint that wherever you need it in the song.
Same goes for the bridge or any other part. You wind up with
several tracks but there is no cutting and pasting. Just paint
the loops where you need them. This makes rearranging a song
very quick because its easy to see where the various parts lie
on the timeline.
It also helps in the mix if you route all these tracks to a
single bus. Then you can apply effects and make volume changes
in one place for that instrument.
If you don’t like having all those tracks for one part here
is an alternate way. Record the verse, chorus, bridge, etc. just
once in succession. Then use the Chopper to highlight just a
verse or just a chorus, etc and insert them as many times as you
want on the timeline. This is the same as cutting and pasting
but I find that using the Chopper is easier.
How do I make patch changes in my VSTi MIDI files?
To change the properties of a loaded VSTi you just double
click on icon on the bus fader at the bottom of the screen for
that SoftSynth (or right click on the icon or name and select
Soft Synth Properties...) and the properties window will pop
up just like it did when you added the SoftSynth. You can then
change any of its properties like the program name (i.e., patch)
that a DLS SoftSynth will use or the channel it listens on. If
you don't see the channel dropdown box, then you probably have a
version of ACID that is 4.0a or earlier. Please update to the
latest version of ACID on the Sony site.
If the SoftSynth can play multiple voices on separate
channels you can assign each new MIDI track to a different
channel and voice. Here is how it should work:
- Drop a MIDI track on the timeline
- Add a DLS SoftSynth and set it for the patch you want
- The MIDI track should play that patch
- Now drop a second MIDI track on the timeline and assign
it the same DLS
- Call up the track properties and change the MIDI channel
in the General tab to channel 2
- Call up the DLS SoftSynth properties and change the
channel to 2
- Assign a new patch to channel 2 in the DLS SoftSynth and
the second MIDI track should play that patch while the first
track place channel 1’s patch.
You should now have one DLS SoftSynth loaded with two MIDI
channels and each MIDI track assigned to one of those channels
and playing the appropriate patch assigned to their channel.
This is how you would set up any multi-patch softsynth like DLS,
SampleTank or SFZ (Soundfont Player), etc.
If you want to manually add program changes into the MIDI
stream, you can do this in the List Editor. To get to the List
Editor, either double click on the MIDI icon to the left of the
Track Header or right click on it and select Properties... and
then select the List Editor tab at the top of the dialog. Next
right click the event before where you want to add the program
change and select Insert. From the Insert dialog select Patch as
the Event Type and type the patch number in the Patch field. (of
course you can modify the bank number as well)
You should only need to use the insert method for patch
changes during a loop, or to set up patches for an external MIDI
device (where your SoundBlaster sound card, etc. is consider
external because its hardware based and not software
controllable).
How can I use an existing song and add loops to it?
Yes, what you want to do is called Beatmapping. This will
allow you to bring in a song and map it to a beat. Once you’ve
done that, you can mix and match parts of songs and they will
all overlap seamlessly.
Some thing to watch out for:
1. If a song was recorded live or even recorded in a studio
with a live drummer who wasn’t listening to a click track, the
beat may vary from measure to measure. There is not a lot you
can do about this. Songs which uses a steady tempo beatmap the
best.
2. The songs you want to mix together should start out with a
tempo that is fairly close. You are not going to be able to mix
a song at 80 beats per minute with one at 140 beats per minute
because that much stretching will produce unwanted audio
artifacts. Try and select songs that have tempos that are pretty
close to begin with for the best results.
Start by reading the Quick Start Manual cover-to-cover to get
a good overview of how ACID works. Then open the User's Manual
and go to the Using The Beatmapper section (in Chapter 7,
starting on page 103). This should get you started quickly.
Then, of course, go back and read everything you skipped. ;-)
(and don’t forget to experiment, explore, and have fun)
Sound Forge doesn't recognize all my
VST plug-ins
There are time when Sound Forge will not recognize a VST
plug-in that you know is working. Here is a registry hack to fix
this (WARNING: only edit the registry if you know what you are
doing):
The plug-in information for Sound Forge 8.0 is stored under
the registry key:
HKEY_CURRENT_USER\Software\Sony Media Software\Sound
Forge\8.0\Metrics\VstCache\Mappings
Each entry under Mappings will have a key with the GUID of
the plug-in. You can look at the String value of Name to
find the plug-in in question. There is a Flags value that
must be set to 0x0E (14). If your plug-in has a value of 0x10
(16) it means that Sound Forge tried to open the plug-in but it
failed but this could have been due to Sound Forge opening and
closing the plug-in too quickly. Just change the Flags value and
see if it works.
Removing the vocals from a recording is a bit like trying to
remove the eggs from a cake after it is baked. All of the
frequencies in the recording are mixed together with the vocals
sharing frequencies with other instruments and it is very
difficult to achieve. If the vocals are panned dead center in a
mix, you can subtract the left channel from the right channel
thus removing the center channel but it will remove everything
from the center channel, not just the vocals. This is best done
with Sound Forge Channel Converter which already has a Vocal Cut
preset. For more control and to isolate vocals, you might want
to try a Freeware VST plug-in called
Voice Trap.
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