[Cairo-user] [CAIRO] getting started with demos

[Christian S. <chs...@df...>]

Hi all,

I am new to the cairo project and I was trying out the demos you can 
download here:
http://sourceforge.net/projects/cairo/files/

Following the instructions here 
http://www.speechforge.org/projects/cairo/intro.html (that is identical 
to the instruction in the readme file included in the download) I 
however cannot get the demo applications run. In particular the 
recognizer will output this error, while trying to connect to the receiver:

  Sending a SIP invitation to the cairo server.
2010-11-15 13:05:07,296 WARN  {EventScannerThread} 
org.speechforge.cairo.sip.SipListenerImpl
  Received an unhandled SIP response status code (ignoring it): 183 : 
Session progress
2010-11-15 13:05:07,861 INFO  {main} 
org.speechforge.cairo.demo.recog.RecognitionClient
  Received the SIP Response.
java.lang.NullPointerException
2010-11-15 13:05:08,397 WARN  {Thread-7} 
org.speechforge.cairo.rtp.RTPPlayer playSource(): encountered unexpected 
exception:
javax.media.NoDataSourceException: Error instantiating class: 
com.sun.media.protocol.dsound.DataSource : java.lang.NullPointerException
         at javax.media.Manager.createDataSource(Manager.java:1012)
         at 
org.speechforge.cairo.rtp.RTPPlayer.playSource(RTPPlayer.java:110)
         at 
org.speechforge.cairo.rtp.NativeMediaClient$TransmitThread.run(NativeMediaClient.java:105)
Exception in thread "Thread-7" java.lang.RuntimeException: playSource() 
encountered unexpected exception
         at 
org.speechforge.cairo.rtp.RTPPlayer.playSource(RTPPlayer.java:153)
         at 
org.speechforge.cairo.rtp.NativeMediaClient$TransmitThread.run(NativeMediaClient.java:105)
Caused by: javax.media.NoDataSourceException: Error instantiating class: 
com.sun.media.protocol.dsound.DataSource : java.lang.NullPointerException
         at javax.media.Manager.createDataSource(Manager.java:1012)
         at 
org.speechforge.cairo.rtp.RTPPlayer.playSource(RTPPlayer.java:110)
         ... 1 more
2010-11-15 13:05:18,577 WARN  {main} 
org.speechforge.cairo.demo.recog.RecognitionClient
  org.mrcp4j.client.MrcpInvocationException: MRCP response contains an 
error code, the request invocation did not complete successfully.
org.mrcp4j.client.MrcpInvocationException: MRCP response contains an 
error code, the request invocation did not complete successfully.
         at org.mrcp4j.client.MrcpChannel.sendRequest(MrcpChannel.java:143)
         at 
org.speechforge.cairo.demo.recog.RecognitionClient.doRecognize(RecognitionClient.java:164)
         at 
org.speechforge.cairo.demo.recog.RecognitionClient.main(RecognitionCl
ient.java:358)
2010-11-15 13:05:27,929 INFO  {main} 
org.speechforge.cairo.sip.SimpleSipAgent
  Sent a SIP BYE.

Thanks for your help!

chris