diff --git a/data/audio/audio.cfg b/data/audio/audio.cfg
index 66f8c21b8..b39d28fec 100644
--- a/data/audio/audio.cfg
+++ b/data/audio/audio.cfg
@@ -401,9 +401,9 @@ audio_module
 
 /*Building FX*/
 
-	audio	"oilpump.ogg"	loop	 20 1800
-	audio	"powerhum.ogg"	loop     20 1800
-	audio	"powerspk.ogg"	oneshot  20 1800
+	audio	"oilpump.ogg"	loop	 10 1800
+	audio	"powerhum.ogg"	loop     15 1800
+	audio	"powerspk.ogg"	oneshot  15 1800
 	audio	"steam.ogg"		oneshot  20 1800
 	audio	"ecmtower.ogg"	oneshot  20 1800
 	audio	"freroar.ogg"	oneshot 100 1800
diff --git a/lib/sound/openal_track.c b/lib/sound/openal_track.c
index d505550ad..b549d1173 100644
--- a/lib/sound/openal_track.c
+++ b/lib/sound/openal_track.c
@@ -420,9 +420,9 @@ BOOL sound_Play2DSample( TRACK *psTrack, AUDIO_SAMPLE *psSample, BOOL bQueued )
 	{
 		return FALSE;
 	}
-	volume = ((float)psTrack->iVol / 100.0f);	// each object can have OWN volume!
-	psSample->fVol = volume;			// save volume
-	volume *= sfx_volume;				// and now take into account the Users sound Prefs.
+	volume = ((float)psTrack->iVol / 100.0f);       // each object can have OWN volume!
+	psSample->fVol = volume;                        // save computed volume
+	volume *= sfx_volume;                           // and now take into account the Users sound Prefs.
 	alGenSources( 1, &(psSample->iSample) );
 	alSourcef( psSample->iSample, AL_PITCH, 1.0f );
 	alSourcef( psSample->iSample, AL_GAIN,volume );
@@ -459,9 +459,9 @@ BOOL sound_Play3DSample( TRACK *psTrack, AUDIO_SAMPLE *psSample )
 	{
 		return FALSE;
 	}
-	
-	volume = ((float)psTrack->iVol / 100.0);	// max range is 0-100
-	psSample->fVol = volume;			// store results for later
+
+	volume = ((float)psTrack->iVol / 100.0);        // max range is 0-100
+	psSample->fVol = volume;                        // store results for later
 	alGenSources( 1, &(psSample->iSample) );
 	// HACK: this is a workaround for a bug in the 64bit implementation of OpenAL on GNU/Linux
 	// The AL_PITCH value really should be 1.0.
diff --git a/lib/sound/track.h b/lib/sound/track.h
index c9fa25a6e..b384b857d 100644
--- a/lib/sound/track.h
+++ b/lib/sound/track.h
@@ -71,7 +71,7 @@ typedef struct AUDIO_SAMPLE
 	ALuint                  iSample;        // OpenAL name of the sound source
 #endif
 	SDWORD                  x, y, z;
-	float                   fVol;		// computed volume of sample
+	float                   fVol;           // computed volume of sample
 	BOOL                    bFinishedPlaying;
 	AUDIO_CALLBACK          pCallback;
 	void                    *psObj;