diff --git a/libcompandor/compandor.c b/libcompandor/compandor.c
index 3a2ca9b..b06602e 100644
--- a/libcompandor/compandor.c
+++ b/libcompandor/compandor.c
@@ -32,7 +32,7 @@
 #define EXPAND_ATTACK_FACTOR		1.145		/* about 0.57 after 6 dB step up */
 #define EXPAND_RECOVERY_FACTOR		0.753		/* about 1.51 after 6 dB step down */
 
-/* Minimum level value to keep state */
+/* Minimum level value to keep state (-60 dB) */
 #define ENVELOPE_MIN	0.001
 
 /* Maximum level, to prevent sqrt_tab to overflow */
@@ -46,7 +46,7 @@ static double sqrt_tab[10000];
  * Hopefully this is correct
  *
  */
-void init_compandor(compandor_t *state, double samplerate, double attack_ms, double recovery_ms, double unaffected_level)
+void init_compandor(compandor_t *state, double samplerate, double attack_ms, double recovery_ms)
 {
 	int i;
 
@@ -60,8 +60,6 @@ void init_compandor(compandor_t *state, double samplerate, double attack_ms, dou
 	state->c.step_down = pow(COMPRESS_RECOVERY_FACTOR, 1000.0 / recovery_ms / samplerate);
 	state->e.step_up = pow(EXPAND_ATTACK_FACTOR, 1000.0 / attack_ms / samplerate);
 	state->e.step_down = pow(EXPAND_RECOVERY_FACTOR, 1000.0 / recovery_ms / samplerate);
-	state->c.unaffected = unaffected_level;
-	state->e.unaffected = unaffected_level;
 
 	// FIXME: make global, not at instance
 	for (i = 0; i < 10000; i++)
@@ -70,19 +68,17 @@ void init_compandor(compandor_t *state, double samplerate, double attack_ms, dou
 
 void compress_audio(compandor_t *state, sample_t *samples, int num)
 {
-	double value, peak, envelope, step_up, step_down, unaffected;
+	double value, peak, envelope, step_up, step_down;
 	int i;
 
 	step_up = state->c.step_up;
 	step_down = state->c.step_down;
 	peak = state->c.peak;
 	envelope = state->c.envelope;
-	unaffected = state->c.unaffected;
 
 //	printf("envelope=%.4f\n", envelope);
 	for (i = 0; i < num; i++) {
-		/* normalize sample value to unaffected level */
-		value = *samples / unaffected;
+		value = *samples;
 
 		/* 'peak' is the level that raises directly with the signal
 		 * level, but falls with specified recovery rate. */
@@ -101,11 +97,9 @@ void compress_audio(compandor_t *state, sample_t *samples, int num)
 		if (envelope > ENVELOPE_MAX)
 			envelope = ENVELOPE_MAX;
 
-		value = value / sqrt_tab[(int)(envelope / 0.001)];
+		*samples++ = value / sqrt_tab[(int)(envelope / 0.001)];
 //if (i > 47000.0 && i < 48144)
 //printf("time=%.4f envelope=%.4fdb, value=%.4f\n", (double)i/48000.0, 20*log10(envelope), value);
-
-		*samples++ = value * unaffected;
 	}
 //exit(0);
 
@@ -115,18 +109,16 @@ void compress_audio(compandor_t *state, sample_t *samples, int num)
 
 void expand_audio(compandor_t *state, sample_t *samples, int num)
 {
-	double value, peak, envelope, step_up, step_down, unaffected;
+	double value, peak, envelope, step_up, step_down;
 	int i;
 
 	step_up = state->e.step_up;
 	step_down = state->e.step_down;
 	peak = state->e.peak;
 	envelope = state->e.envelope;
-	unaffected = state->e.unaffected;
 
 	for (i = 0; i < num; i++) {
-		/* normalize sample value to 0 DB level */
-		value = *samples / unaffected;
+		value = *samples;
 
 		/* for comments: see compress_audio() */
 		if (fabs(value) > peak)
@@ -140,9 +132,7 @@ void expand_audio(compandor_t *state, sample_t *samples, int num)
 		if (envelope < ENVELOPE_MIN)
 			envelope = ENVELOPE_MIN;
 
-		value = value * envelope;
-
-		*samples++ = value * unaffected;
+		*samples++ = value * envelope;
 	}
 
 	state->e.envelope = envelope;
diff --git a/libcompandor/compandor.h b/libcompandor/compandor.h
index 25d51ea..e912609 100644
--- a/libcompandor/compandor.h
+++ b/libcompandor/compandor.h
@@ -1,14 +1,12 @@
 
 typedef struct compandor {
 	struct {
-		double	unaffected;
 		double	step_up;
 		double	step_down;
 		double	peak;
 		double	envelope;
 	} c;
 	struct {
-		double	unaffected;
 		double	step_up;
 		double	step_down;
 		double	peak;
@@ -16,7 +14,7 @@ typedef struct compandor {
 	} e;
 } compandor_t;
 
-void init_compandor(compandor_t *state, double samplerate, double attack_ms, double recovery_ms, double unaffected_level);
+void init_compandor(compandor_t *state, double samplerate, double attack_ms, double recovery_ms);
 void compress_audio(compandor_t *state, sample_t *samples, int num);
 void expand_audio(compandor_t *state, sample_t *samples, int num);