Car Sound Simulator - OSC Messages

Car Sound Simulator is driven by OSC MESSAGES sent over UDP, with each action associated with one message. The action name is a KEYWORD, followed by some OSC ARGUMENTS.

Basic management messages

Basic management for the sound generator

Messages sent once by state change

Messages sent regularly

Traffic noise management

The exploiting application handles up to 8 traffic vehicles, corresponding to 8 possible synthesis slots. These 8 vehicles must be chosen by the simulator depending on their contribution to the sound scene, for example by selecting the closest ones.

Angles are in radians, 0 is a front source, -pi/2 is left, +pi/2 is right. Angles superior to pi or inferior to -pi are accepted

Messages sent once by state change

Messages sent regularly

Harmonic sources management

The application handles up to 10 harmonic sources. Each of them can be controlled with the following messages:

Messages sent once by state change

Tires noises of the main vehicle

Tires Noise has to be updated for each wheel by providing information about the current slippyness

Messages sent once by state change

Weather management

Weather noise management

Messages sent once by state change

Additional noises

Loading orders of additional simulation noises.

Messages sent once by state change.

Sound files playing

Supported functions:

• sendSoundLoad : loads a sound
• sendSoundPlay : play a sound (looping available)
• sendSoundStop : stops a sound play
• sendSoundPause : pauses a sound play
• sendSoundVolume : sets the sound volume

There are 10 available slots for sound play in Car Sound Simulator. The main simulation application has to manage the slots indexes availability.

Notes:

• the slots indexes are >=1 and =10
• .wav extension is appended to the file name

Messages sent once by state change

Error and warning messages

Messages sent to the main simulation application when required.

Messages sent once by state change

Start, stop, state management

The main simulation application has to start and stop Car Sound Simulator.

Message sent periodically to the main application.

Head-tracking

Message sent to locate the position of the listener's head for head-tracked binaural rendering

Message sent periodically to the main application

                        </th><th>TYPE
                        </th><th>COMMENTS
                </th></tr></thead>
                <tbody>
                    <tr>
                    <td>HEAD-POSITION</td>
                    <td>
                        <p>X (float) Y (float) Z (float)</p>
                        <p>rotZ (float) rotY (float) rotX (float)</p>
                    </td>
                    <td>
                        <p>Position of the listener's head in space.</p>
                        <p>Distances are in meters, angles in radians.</p>
                        <p>X points front</p>
                        <p>Y points to the right Z points below</p>
                        <p>The azimuth angle is then rotZ, with a positive angle when the
                            listener turns his head to the right.</p>
                        <p>Elevation angle is then rotY with a positive angle when the listener
                            raises the head.</p>
                    </td>
                </tr>
                </tbody>