sound3d

Demonstrates how to use 3D sounds.

• A Button: Plays the sound while pressed (no Doppler effect or filter applied)
• X Button: Plays the sound while pressed (no Doppler effect or filter applied)
• B Button: Resets sound source coordinates
• L/R Buttons: Selects the filter type
• +Control pad: Moves the sound source coordinates

The following demos show the techniques required for processing 3D sounds.

• nw::snd::Sound3DManager Class
• nw::snd::Sound3DActor Class
• nw::snd::Sound3DListener Class

The demo demonstrates the use of the above classes.

Use of 3D sounds allows you to apply panning and volume changes suited to the 3D game space.

Move along the x-axis using +Control pad Left/Right. This results in a left-right panning motion.
Move along the z-axis using +Control pad Up/Down.

A Doppler effect can be applied while playing a sound with the X Button by moving the sound coordinates using the +Control pad.
The biquad filter selected using the L/R Buttons is also applied.

For more details, see the following documentation.

• Sound Programmer's Guide, Chapter 6, 3D Sounds
• Sound System Manual, Chapter 3, 3D Sounds

2010/11/30

Added mention of when the filter is applied.

2010/09/27

Initial version.