General Rules for calling AudioDevice methods: See PhysicalEnvironment class for more details. To the Java3D environment and the allAudioDevices method produces anĮnumeration that allows examining all available devices within a Java3DĮnvironment. The setAudioDevice method introduces new devices With the Java3D sound scheduler by associating this device with a Once instantiated, the browser or application must register the device The API for instantiating devices is site-specific, but it consists ofĪ device object with a constructor and at least all of the methods The browser or application will instantiate the physical environment as
This device information typically exists in a site configuration file. Specific audio devices that he or she needs and that exist on the system. Instantiating and Registering a New DeviceĪ browser or applications developer must instantiate whatever system. Querying these device-driver specific characteristics are provided. These includeĬhannel availability and usage (during rendering). Its own limitations and driver-specific characteristics.
#Class audiodevice driver
Each implemented Java3D audio device driver will have Each sound source will use N input channels of this Generated for each rendered sound source before outputting the final Is either only mono or stereo (for this version of Java3D) most deviceĭriver implementations will mix the left and right image signals While the sound image created for final output to the playback system Placed at the sides of the computer display typically range betweenĠ.28 to 0.35 radians (between 10 and 20 degrees). These methods set and retrieve the angle in radians between the vectorsįrom the center ear to each of the speaker transducers and the vectorsįrom the center ear parallel to the head coordinate's Z axis. For stereo speakers placed at the sides of the For monaural speaker playback,Ī typical distance from the listener to the speaker in a workstationĬabinet is 0.76 meters. These methods set and retrieve the distance in meters from the centerĮar (the midpoint between the left and right ears) and one of the The type of playback chosen affects the sound image generated.Ĭross-talk cancellation is applied to the audio image if playback over Stereo headphones, a monaural speaker, or a pair of speakers.įor the stereo speakers, it is assumed that the two output speakers areĮqually distant from the listener, both at same angle from the headĪxis (thus oriented symmetrically about the listener), and at the same The audio playback type specifies that playback will be through: The analog audio from rendering Java3D Sound nodes. These methods set and retrieve the audio playback type used to output Methods, in general, are potentially device driver dependent. Sound methods are executed because the implementation of the Sound The chosen device driver should be initialized before any Java3D
#Class audiodevice portable
Since all audio devices implement this consistent interface, the userĬould have a portable means of initialize, set particular audio deviceĮlements and query generic characteristics for any audio device.Įach audio device driver must be initialized. Java3D's uses several methods to interact with specific devices. That creators of Java3D class libraries would implement for a particularĭevice. The AudioDevice object interface specifies an abstract input device PhysicalEnvironment object may use only a single audio device. Particular device is set into this PhysicalEnvironment's fields. The available audio devices to use for a PhysicalEnvironment, the ForĮach device, the user can get the AudioDevice object that describes itĪnd query its characteristics. The application would query how many audio devices are available. PhysicalEnvironment object - see PhysicalEnvironment class.
The selection of this device driver is done through methods in the Speaker(s)) is physically connected to the port the selected device driver Once this audio device is chosen, theĪpplication can additionally select the type of audio playback type the For such aĬase the Java3D application must choose the audio device driver with which
#Class audiodevice drivers
In such a case the application would have at least twoĪudio device drivers through which the audio could be produced. Furthermore, suppose thereĪre Java3D audio device drivers that execute Java3D audio methods on each of With accelerated sound spatialization hardware). One sound card (e.g., one that is a Wave Table Synthesis card and the other Perhaps the machine Java3D is executing on has more than Several options available to it for playing the audio image created by the The AudioDevice Class defines and encapsulates theĪudio device's basic information and characteristics.Ī Java3D application running on a particular machine could have one of Interface AudioDevice All Known Subinterfaces: AudioDevice3D, AudioDevice3DL2 All Known Implementing Classes: AudioEngine, AudioEngine3D, AudioEngine3DL2, JavaSoundMixer SUMMARY: NESTED | FIELD | CONSTR | METHOD
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