diff --git a/code/nel/samples/sound/stream_ogg_vorbis/stream_ogg_vorbis.cpp b/code/nel/samples/sound/stream_ogg_vorbis/stream_ogg_vorbis.cpp
index 7d200635a..db5b8b214 100644
--- a/code/nel/samples/sound/stream_ogg_vorbis/stream_ogg_vorbis.cpp
+++ b/code/nel/samples/sound/stream_ogg_vorbis/stream_ogg_vorbis.cpp
@@ -367,6 +367,7 @@ static void initSample()
 	string sample = SAMPLE_OGG;
 	s_AudioDecoder = IAudioDecoder::createAudioDecoder(sample, false, false);
 	s_StreamSource->setFormat(s_AudioDecoder->getChannels(), s_AudioDecoder->getBitsPerSample(), (uint32)s_AudioDecoder->getSamplesPerSec());
+	s_StreamSource->setPitch(2.0f);
 }
 
 //CMutex *s_Mutex = NULL;
@@ -413,6 +414,7 @@ static void runSample()
 			return;
 		}
 		bufferMore(bytes);
+		s_AudioMixer->update();
 		//if (!s_StreamSource->asUSource()->isst)
 		//{
 		//	printf("*!playing!*");
@@ -424,6 +426,7 @@ static void runSample()
 	while (s_StreamSource->hasFilledBuffersAvailable())
 	{
 		nlSleep(40);
+		s_AudioMixer->update();
 	}
 	
 	s_StreamSource->stop();