diff --git a/common/memops.c b/common/memops.c
index 290449b2..266b7b8f 100644
--- a/common/memops.c
+++ b/common/memops.c
@@ -29,6 +29,7 @@
 #include <memory.h>
 #include <stdlib.h>
 #include <stdint.h>
+#include <stdbool.h>
 #include <limits.h>
 #ifdef __linux__
 #include <endian.h>
@@ -412,9 +413,10 @@ void sample_move_d32_sS (char *dst, jack_default_audio_sample_t *src, unsigned l
 }
 
 
-void sample_move_dS_s32u24s (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip)
+static inline void sample_move_dS_s32s_signext (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip, const bool do_signext)
 {
-	const jack_default_audio_sample_t scaling = 1.0 / (SAMPLE_24BIT_SCALING << 8);
+	const jack_default_audio_sample_t scaling_divisor = do_signext ? (SAMPLE_24BIT_SCALING << 8) : SAMPLE_32BIT_SCALING;
+	const jack_default_audio_sample_t scaling = 1.0 / scaling_divisor;
 
 #if defined (__ARM_NEON__) || defined (__ARM_NEON)
 	float32x4_t factor = vdupq_n_f32(scaling);
@@ -437,9 +439,11 @@ void sample_move_dS_s32u24s (jack_default_audio_sample_t *dst, char *src, unsign
 				break;
 		}
 		src128 = vreinterpretq_s32_u8(vrev32q_u8(vreinterpretq_u8_s32(src128)));
-		/* sign extension - left shift will be reverted by scaling */
-		int32x4_t shifted = vshlq_n_s32(src128, 8);
-		float32x4_t as_float = vcvtq_f32_s32(shifted);
+		if (do_signext) {
+			/* sign extension - left shift will be reverted by scaling */
+			src128 = vshlq_n_s32(src128, 8);
+		}
+		float32x4_t as_float = vcvtq_f32_s32(src128);
 		float32x4_t divided = vmulq_f32(as_float, factor);
 		vst1q_f32(dst, divided);
 
@@ -470,16 +474,26 @@ void sample_move_dS_s32u24s (jack_default_audio_sample_t *dst, char *src, unsign
 		x <<= 8;
 		x |= (unsigned char)(src[0]);
 #endif
-		/* sign extension - left shift will be reverted by scaling */
-		*dst = (x << 8) * scaling;
+		if (do_signext) {
+			/* sign extension - left shift will be reverted by scaling */
+			x <<= 8;
+		}
+		*dst = x * scaling;
 		dst++;
 		src += src_skip;
 	}
 }	
 
-void sample_move_dS_s32u24 (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip)
+void sample_move_dS_s32u24s (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip)
+{
+	sample_move_dS_s32s_signext (dst, src, nsamples, src_skip, true);
+}
+
+
+static inline void sample_move_dS_s32_signext (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip, const bool do_signext)
 {
-	const jack_default_audio_sample_t scaling = 1.0 / (SAMPLE_24BIT_SCALING << 8);
+	const jack_default_audio_sample_t scaling_divisor = do_signext ? (SAMPLE_24BIT_SCALING << 8) : SAMPLE_32BIT_SCALING;
+	const jack_default_audio_sample_t scaling = 1.0 / scaling_divisor;
 
 #if defined (__SSE2__) && !defined (__sun__)
 	unsigned long unrolled = nsamples / 4;
@@ -495,11 +509,12 @@ void sample_move_dS_s32u24 (jack_default_audio_sample_t *dst, char *src, unsigne
 		int i4 = *((int *) src);
 		src+= src_skip;
 
-		__m128i src = _mm_set_epi32(i4, i3, i2, i1);
-		/* sign extension - left shift will be reverted by scaling */
-		__m128i shifted = _mm_slli_epi32(src, 8);
-
-		__m128 as_float = _mm_cvtepi32_ps(shifted);
+		__m128i src128 = _mm_set_epi32(i4, i3, i2, i1);
+		if (do_signext) {
+			/* sign extension - left shift will be reverted by scaling */
+			src128 = _mm_slli_epi32(src128, 8);
+		}
+		__m128 as_float = _mm_cvtepi32_ps(src128);
 		__m128 divided = _mm_mul_ps(as_float, factor);
 
 		_mm_storeu_ps(dst, divided);
@@ -526,9 +541,11 @@ void sample_move_dS_s32u24 (jack_default_audio_sample_t *dst, char *src, unsigne
 				src128 = vld1q_lane_s32((int32_t*)(src+3*src_skip), src128, 3);
 				break;
 		}
-		/* sign extension  - left shift will be reverted by scaling */
-		int32x4_t shifted = vshlq_n_s32(src128, 8);
-		float32x4_t as_float = vcvtq_f32_s32(shifted);
+		if (do_signext) {
+			/* sign extension  - left shift will be reverted by scaling */
+			src128 = vshlq_n_s32(src128, 8);
+		}
+		float32x4_t as_float = vcvtq_f32_s32(src128);
 		float32x4_t divided = vmulq_f32(as_float, factor);
 		vst1q_f32(dst, divided);
 
@@ -541,13 +558,23 @@ void sample_move_dS_s32u24 (jack_default_audio_sample_t *dst, char *src, unsigne
 	/* ALERT: signed sign-extension portability !!! */
 
 	while (nsamples--) {
-		/* sign extension  - left shift will be reverted by scaling */
-		*dst = (*((int *) src) << 8) * scaling;
+		int src32 = *((int *) src);
+		if (do_signext) {
+			/* sign extension  - left shift will be reverted by scaling */
+			src32 <<= 8;
+		}
+		*dst = src32 * scaling;
 		dst++;
 		src += src_skip;
 	}
 }	
 
+void sample_move_dS_s32u24 (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip)
+{
+	sample_move_dS_s32_signext (dst, src, nsamples, src_skip, true);
+}
+
+
 void sample_move_d24_sSs (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state)
 {
 #if defined (__ARM_NEON__) || defined (__ARM_NEON)