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1  Java Game APIs & Engines / Java Sound & OpenAL / OpenAL Info-App on: 2007-05-09 17:53:36
Hi!
Did anybody wrote a small JOAL-Appliction which shows all Informations about the OpenAL implementation of the executing environment?
I have tried to but I must have forgotten something, because the results looked very strange to me.

That was my code:
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import net.java.games.joal.*;
import net.java.games.joal.util.*;


public class OpenALInfo {

AL al;
ALC alc;
   
   public void initOpenAL() {
      try {
         al = ALFactory.getAL();
          alc = ALFactory.getALC();
         alc.alcOpenDevice(null);
         ALut.alutInit();
      } catch (ALException exc){
         print("Fehler bei der AL-Initialisierung: "+exc);
      }
   }
   
   public void print(String str) {
      System.out.println(str);
   }
   
   public  void showALInfos() {
      print("OpenAL Version:             "+al.alGetString(AL.AL_VERSION));
      print("Renderer:                   "+al.alGetString(AL.AL_RENDERER));
      print("Vendor:                     "+al.alGetString(AL.AL_VENDOR));
      print("Available Extensions:       "+al.alGetString(AL.AL_EXTENSIONS));
      print("");
     
      String devSpecs = "";
      if (alc.alcGetDeviceSpecifiers() != null) {
         for (int i=0;i<alc.alcGetDeviceSpecifiers().length;i++) {
            devSpecs.concat(alc.alcGetDeviceSpecifiers()[i]);
         }
      } else devSpecs = "none";
      print("Available Devices:          "+devSpecs);
     
      print("ALC Extensions:             "+alc.alcGetString(alc.alcGetContextsDevice(alc.alcGetCurrentContext()),ALC.ALC_EXTENSIONS));
     
      String capDevSpecs = "";
      if (alc.alcGetCaptureDeviceSpecifiers() != null) {
         for (int i=0;i<alc.alcGetCaptureDeviceSpecifiers().length;i++) {
            capDevSpecs.concat(alc.alcGetCaptureDeviceSpecifiers()[i]);
         }
      } else capDevSpecs = "none";
      print("Available Capture Devices:  "+capDevSpecs   );
   }

   public static void main(String[] args) {
      OpenALInfo oali = new OpenALInfo();
      oali.initOpenAL();
      oali.showALInfos();
      System.exit(-1);
   }

}


My results were:
Version: OpenAL 1.2.1 (I thought 1.1 is the latest ?)
Renderer: Software (makes sense)
Vendor: Any (strange but ok)
Extensions :     (no result...)

Available Devices: none
ALC Extensions : null
Available Capture Devices: none


It looks like the AL Context hasn't been created right...

Is there a problem with the code, my OpenAL-implementation or my hardware?

Greetings and thanks
   Chris
2  Java Game APIs & Engines / Java Sound & OpenAL / Re: How can I create a multichannel file? on: 2007-05-05 08:38:46
When you say 'generate a multichannel file' do you mean it like generating textures dynamically?  It should be possible, but I wouldn't know where to begin.

Ok. Maybe 'generate' was not what I meant. I want to set up a static 3D-Audio-Scene (with 'static' I mean no source or listener is moving) and save the output to disk (as a multichannel file, if possible).
So I think I need to read a kind of 'ListenerBuffer' for saving the result...
Am I right? Can I manage that task with JOAL?

Thanks
   Chris
3  Java Game APIs & Engines / Java Sound & OpenAL / How can I create a multichannel file? on: 2007-05-04 15:07:18
Hi everybody!
I know that joal primary is used for playing sounds in applications.
But in my case it is necessary to generate a multichannel file... lets say a .wav (should be the easiest task).
Can somebody help me finding the right way?
Can I use the OpenAL-Extension for Multi-Channel Buffers (I'm working on a mac) ? And how can I store these buffers in a readable format on my hd?

Thanks
   Chris
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