Five Sound Installations
Michael J. Schumacher
Five Sound Installations
www.michaeljschumacher.com
[email protected]
Instructions
The Five Sound Installations DVD contains five computer-generated musical pieces
plus a main control application from which to choose a piece to listen to, set up
audio, etc. There are two procedures for computer installation: one for PC and one
for Mac. Note: this is a double-sided DVD! Please make sure the side with your
OS is facing up!
Minimum System Requirements
PC: Windows XP, Vista, 1 gigahertz processor speed, and at least 5 gigabytes free disc
space.
Mac: OS 10.3 or higher, 1 gigahertz processor speed, and at least 5 gigabytes free
disc space. These pieces will run on Intel-based Macs.
PC installation
1. Insert the Five Sound Installations DVD into your DVD drive, Windows side up.
2. The installer Setup window will appear. Click the “Install” button to begin
installation. If you want to change the destination folder (the default is your Program
Files folder), use the Browse button.
3. Installation will take about half an hour. After installation, close the Setup window
and double click the Five Sound Installations shortcut located on the desktop.
4. When installing on Window Vista, a window will appear from which to run
the program “Install5SoundInstallations.exe”, After clicking Run, you will then be
informed that “An unidentified program wants access to your computer”. Click
Allow.
Note: If the installer window does not appear, or you want to do the installation later, click on the
DVD drive icon in Windows, and open the “Install5SoundInstallations” program.
Mac installation
1. Insert the Five Sound Installations DVD into your DVD drive, Mac OS side up.
2. If the associated window does not automatically appear, double-click on the DVD
icon on the desktop.
3. Drag the Five Sound Installations icon over the Applications folder icon. Copying
the program will take about 30 minutes. You can also copy the program to another
location, such as an external hard drive. Do this by dragging the icon to the preferred
location.
4. Open the Applications folder or other location and double-click the new Five
Sound Installations icon to start the program.
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Setting up and playing
1. Upon opening the program, a window called “Setup Audio” will appear.
1a. Set the number of channels in your
sound system. Using the pop-up menu,
you can choose a number between two
and eight.
1b. Choose an output driver. Use the
pop-up window. Five Sound Installations
should automatically locate the available
drivers on your computer. The most
common are:
• for Mac, “Core Audio Built-in Audio”
• for PC, ad_mme (Note: ad_mme
only supports stereo)
1c. Close the “Setup Audio” window.
1d. You can always open the “Setup Audio” window by clicking on the
“Preferences” in the menu bar.
Note: There may be a difference between the number of channels and the number of
speakers in your system. Channels are discrete destinations, basically the number of
audio outputs on your computer system. Normally there will be two. If you have purchased
and installed an audio interface there may be more. Several multi-channel audio interfaces
are available. See my website for more information and links.
2. Under Preferences, open the window “Advanced”. This contains a number of
important settings that will enable you to troubleshoot problems and maximize
performance.
2a. Audio: This pop-up menu indicates whether or not the digital-to-analog
convertor has turned on. If you have loaded a piece and this menu is set to
“Off,” simply click on it and choose “On.”
2b. Driver: This pop-up menu duplicates the function “Choose Audio Driver” in
the “Setup Audio” window (see #1 above).
2c. CPU Utilization: This gives you an indication of how much of your computer’s
CPU is being used in the generation of the piece.
2d. Sampling Rate: This should be set to 44100.
2e. Output Channels: These channels tell you how many discrete channels are
available for the chosen output driver.
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2f. I/O Vector Size: This menu relates to the functioning of your output driver and will
have an important effect on performance. It should be set to at least 512.
2g. Signal Vector Size: The Signal
Vector Size will effect performance.
As a general rule, set this to the
same value as I/O Vector Size but
feel free to experiment with different
settings to see which setting yields
the best performance.
2h. Click on Audio Driver Setup
to open the output driver’s setup
window. This may be useful in
setting overall volumes, etc.
2i. Click on I/O Mappings to
open a window that allows you to
choose the output destinations
for each discrete channel. This
window is potentially useful in
routing to multi-channel systems,
for example, 5.1 systems, where
a separate channel is used for the
subwoofer. Five Sound Installations
will not automatically configure the
output to accommodate a separate
subwoofer channel (see note on 5.1
setup below).
3. Once you have set up your audio driver, simply click on a title to start a piece.
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4. Adjust the volume using the graphical slider on the left side of the Five Sound
Installations window. The intended volume settings for the individual pieces are
correct, relative to each other. The volume control works like a mixer fader, ranging
from –infinity (silence) to +6dB.
5. To stop a piece, click “STOP” at the bottom of the window, click on a different
piece’s title, or Exit (Quit) the program.
6. In the lower left hand corner of the main window is a pop-up menu that you can
use to turn the audio processing on and off. This also serves as a monitor to let you
know whether the DAC (digital-to-analog converter) has turned on when a piece
loads. If the clock for the piece is active and no sound is heard, check here first. If
it’s set to OFF, click on the pop-up window and set to ON.
7. Set up your computer to not go to sleep.
Notes on Spatialization
Five Sound Installations is unique in that, although the pieces are designed for
multi-channel play, they are easily configured for almost any sound system, even
stereo, without the need for acoustic room treatments or the creation of a “sweet
spot.” The basic method is to distribute the sounds in an imaginary 360-degree arc
surrounding the listener, panning sounds between any two contiguous speakers in
this imaginary circle. This works in stereo by folding the arc back onto itself.
In setting up your sound system, you should endeavor to distribute the sound in as
wide an area as possible, given the number of available channels. Speakers do not
have to be symmetrically placed; they don’t even all have to face in towards where
the listener might sit. Speakers can point in different directions and be at different
heights and they can be angled to point up or down. Even if you are using a 5.1 or
7.1 system, you can experiment with radical speaker positioning.
Playback in Stereo Using the Computer’s Built-In Audio
This simple method involves directing the sound to the appropriate driver. The sound
is then sent via the headphone jack to the sound system using the appropriate
cable (usually stereo mini to 2 RCA). Place the speakers as far apart as possible for
maximum saturation.
Surround Sound Systems
Computers often have 5.1 sound built in; however, you must be able to access
the driver within Five Sound Installations. Often the six channels are unavailable
as discrete channels, since movies released with 5.1 sound use Dolby or DTS
encoding. However, with ASIO or Directx drivers, it is possible to access the
individual channels and set up your system accordingly.
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The outputs of 5.1 systems are normally organized in the following way:
1:
2:
3:
4:
5:
6:
Left
Right
Center
Low Frequency Effects (LFE)
Left Surround
Right Surround
The LFE channel sends a separate signal to the subwoofer. Since the subwoofer is
limited in terms of frequency range, it is best to avoid using it as an independent
channel for Five Sound Installations. Instead, you should configure the output (using
the I/O Mappings window described in #2i above) to send the signals to channels 1,
2, 3, 5, and 6, and set the number of channels to 5.
For a 7.1 system, the same logic applies, only there are two extra channels
available.
Speaker Placement
Setting up the speakers is simple and requires no “sweet spot.” The speakers
may be placed in a circle surrounding the listener or placed in a line in front of
the listener. They may be placed asymmetrically around the room. Part of the
enjoyment of Five Sound Installations is experimenting with multi-speaker setups.
Reverb
Five Sound Installations, being designed for multi-channel speaker configurations,
is not “mastered” in the usual way. Most stereo CDs are mastered to include reverb
to add fullness and warmth to the sound, since most home listening environments
lack the acoustical properties of performing venues. However, the computing power
required for adding reverb to multi-channel systems, and the flexibility required to
adapt the reverb to radically different playback environments, prohibits its use for
Five Sound Installations. The result may be, depending on the specific listening
environment, an unusually “dry” sound. This is mitigated to a large degree when the
pieces are played over four or more loudspeakers.
Headphones are NOT recommended!
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