diff --git a/sbc/sbc.c b/sbc/sbc.c
index 827b731..2750cc4 100644
--- a/sbc/sbc.c
+++ b/sbc/sbc.c
@@ -657,14 +657,11 @@ static int sbc_analyze_audio(struct sbc_encoder_state *state,
 		for (ch = 0; ch < frame->channels; ch++)
 			for (blk = 0; blk < frame->blocks; blk += 4) {
 				state->sbc_analyze_4b_4s(
-					&frame->pcm_sample[ch][blk * 4],
-					&state->X[ch][state->position[ch]],
+					&state->X[ch][state->position +
+							48 - blk * 4],
 					frame->sb_sample_f[blk][ch],
 					frame->sb_sample_f[blk + 1][ch] -
 					frame->sb_sample_f[blk][ch]);
-				state->position[ch] -= 16;
-				if (state->position[ch] < 0)
-					state->position[ch] = 64 - 16;
 			}
 		return frame->blocks * 4;
 
@@ -672,14 +669,11 @@ static int sbc_analyze_audio(struct sbc_encoder_state *state,
 		for (ch = 0; ch < frame->channels; ch++)
 			for (blk = 0; blk < frame->blocks; blk += 4) {
 				state->sbc_analyze_4b_8s(
-					&frame->pcm_sample[ch][blk * 8],
-					&state->X[ch][state->position[ch]],
+					&state->X[ch][state->position +
+							96 - blk * 8],
 					frame->sb_sample_f[blk][ch],
 					frame->sb_sample_f[blk + 1][ch] -
 					frame->sb_sample_f[blk][ch]);
-				state->position[ch] -= 32;
-				if (state->position[ch] < 0)
-					state->position[ch] = 128 - 32;
 			}
 		return frame->blocks * 8;
 
@@ -918,8 +912,7 @@ static void sbc_encoder_init(struct sbc_encoder_state *state,
 				const struct sbc_frame *frame)
 {
 	memset(&state->X, 0, sizeof(state->X));
-	state->subbands = frame->subbands;
-	state->position[0] = state->position[1] = 12 * frame->subbands;
+	state->position = 0;
 
 	sbc_init_primitives(state);
 }
@@ -1043,12 +1036,22 @@ int sbc_encode(sbc_t *sbc, void *input, int input_len, void *output,
 		int output_len, int *written)
 {
 	struct sbc_priv *priv;
-	char *ptr;
-	int i, ch, framelen, samples;
+	int framelen, samples;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	int swap_endian = (sbc->endian != SBC_LE);
+#elif __BYTE_ORDER == __BIG_ENDIAN
+	int swap_endian = (sbc->endian != SBC_BE);
+#else
+#error "Unknown byte order"
+#endif
 
 	if (!sbc && !input)
 		return -EIO;
 
+	/* input buffer must be 2 bytes aligned (alignment for audio samples) */
+	if ((uintptr_t) input & 1)
+		return -EIO;
+
 	priv = sbc->priv;
 
 	if (written)
@@ -1079,19 +1082,22 @@ int sbc_encode(sbc_t *sbc, void *input, int input_len, void *output,
 	if (!output || output_len < priv->frame.length)
 		return -ENOSPC;
 
-	ptr = input;
-
-	for (i = 0; i < priv->frame.subbands * priv->frame.blocks; i++) {
-		for (ch = 0; ch < priv->frame.channels; ch++) {
-			int16_t s;
-			if (sbc->endian == SBC_BE)
-				s = (ptr[0] & 0xff) << 8 | (ptr[1] & 0xff);
-			else
-				s = (ptr[0] & 0xff) | (ptr[1] & 0xff) << 8;
-			ptr += 2;
-			priv->frame.pcm_sample[ch][i] = s;
-		}
-	}
+	if (priv->frame.subbands == 4)
+		priv->enc_state.position =
+			priv->enc_state.sbc_encoder_process_input_4s(
+				priv->enc_state.position,
+				(int16_t *) input, priv->enc_state.X,
+				priv->frame.subbands * priv->frame.blocks,
+				priv->frame.channels,
+				swap_endian);
+	else
+		priv->enc_state.position =
+			priv->enc_state.sbc_encoder_process_input_8s(
+				priv->enc_state.position,
+				(int16_t *) input, priv->enc_state.X,
+				priv->frame.subbands * priv->frame.blocks,
+				priv->frame.channels,
+				swap_endian);
 
 	samples = sbc_analyze_audio(&priv->enc_state, &priv->frame);
 
diff --git a/sbc/sbc_primitives.c b/sbc/sbc_primitives.c
index e3a7764..45bcccc 100644
--- a/sbc/sbc_primitives.c
+++ b/sbc/sbc_primitives.c
@@ -25,6 +25,8 @@
 
 #include <stdint.h>
 #include <limits.h>
+#include <byteswap.h>
+#include <string.h>
 #include "sbc.h"
 #include "sbc_math.h"
 #include "sbc_tables.h"
@@ -33,6 +35,8 @@
 #include "sbc_primitives_mmx.h"
 #include "sbc_primitives_neon.h"
 
+#if 0
+
 /*
  * A standard C code of analysis filter.
  */
@@ -176,6 +180,8 @@ static void sbc_analyze_4b_8s(int16_t *pcm, int16_t *x,
 	sbc_analyze_eight(x, out);
 }
 
+#endif
+
 /*
  * A reference C code of analysis filter with SIMD-friendly tables
  * reordering and code layout. This code can be used to develop platform
@@ -312,28 +318,9 @@ static inline void sbc_analyze_eight_simd(const int16_t *in, int32_t *out,
 			(SBC_COS_TABLE_FIXED8_SCALE - SCALE_OUT_BITS);
 }
 
-static inline void sbc_analyze_4b_4s_simd(int16_t *pcm, int16_t *x,
-						int32_t *out, int out_stride)
+static inline void sbc_analyze_4b_4s_simd(int16_t *x, int32_t *out,
+							int out_stride)
 {
-	/* Fetch audio samples and do input data reordering for SIMD */
-	x[64] = x[0]  = pcm[8 + 7];
-	x[65] = x[1]  = pcm[8 + 3];
-	x[66] = x[2]  = pcm[8 + 6];
-	x[67] = x[3]  = pcm[8 + 4];
-	x[68] = x[4]  = pcm[8 + 0];
-	x[69] = x[5]  = pcm[8 + 2];
-	x[70] = x[6]  = pcm[8 + 1];
-	x[71] = x[7]  = pcm[8 + 5];
-
-	x[72] = x[8]  = pcm[0 + 7];
-	x[73] = x[9]  = pcm[0 + 3];
-	x[74] = x[10] = pcm[0 + 6];
-	x[75] = x[11] = pcm[0 + 4];
-	x[76] = x[12] = pcm[0 + 0];
-	x[77] = x[13] = pcm[0 + 2];
-	x[78] = x[14] = pcm[0 + 1];
-	x[79] = x[15] = pcm[0 + 5];
-
 	/* Analyze blocks */
 	sbc_analyze_four_simd(x + 12, out, analysis_consts_fixed4_simd_odd);
 	out += out_stride;
@@ -344,44 +331,9 @@ static inline void sbc_analyze_4b_4s_simd(int16_t *pcm, int16_t *x,
 	sbc_analyze_four_simd(x + 0, out, analysis_consts_fixed4_simd_even);
 }
 
-static inline void sbc_analyze_4b_8s_simd(int16_t *pcm, int16_t *x,
-					  int32_t *out, int out_stride)
+static inline void sbc_analyze_4b_8s_simd(int16_t *x, int32_t *out,
+							int out_stride)
 {
-	/* Fetch audio samples and do input data reordering for SIMD */
-	x[128] = x[0]  = pcm[16 + 15];
-	x[129] = x[1]  = pcm[16 + 7];
-	x[130] = x[2]  = pcm[16 + 14];
-	x[131] = x[3]  = pcm[16 + 8];
-	x[132] = x[4]  = pcm[16 + 13];
-	x[133] = x[5]  = pcm[16 + 9];
-	x[134] = x[6]  = pcm[16 + 12];
-	x[135] = x[7]  = pcm[16 + 10];
-	x[136] = x[8]  = pcm[16 + 11];
-	x[137] = x[9]  = pcm[16 + 3];
-	x[138] = x[10] = pcm[16 + 6];
-	x[139] = x[11] = pcm[16 + 0];
-	x[140] = x[12] = pcm[16 + 5];
-	x[141] = x[13] = pcm[16 + 1];
-	x[142] = x[14] = pcm[16 + 4];
-	x[143] = x[15] = pcm[16 + 2];
-
-	x[144] = x[16] = pcm[0 + 15];
-	x[145] = x[17] = pcm[0 + 7];
-	x[146] = x[18] = pcm[0 + 14];
-	x[147] = x[19] = pcm[0 + 8];
-	x[148] = x[20] = pcm[0 + 13];
-	x[149] = x[21] = pcm[0 + 9];
-	x[150] = x[22] = pcm[0 + 12];
-	x[151] = x[23] = pcm[0 + 10];
-	x[152] = x[24] = pcm[0 + 11];
-	x[153] = x[25] = pcm[0 + 3];
-	x[154] = x[26] = pcm[0 + 6];
-	x[155] = x[27] = pcm[0 + 0];
-	x[156] = x[28] = pcm[0 + 5];
-	x[157] = x[29] = pcm[0 + 1];
-	x[158] = x[30] = pcm[0 + 4];
-	x[159] = x[31] = pcm[0 + 2];
-
 	/* Analyze blocks */
 	sbc_analyze_eight_simd(x + 24, out, analysis_consts_fixed8_simd_odd);
 	out += out_stride;
@@ -392,14 +344,187 @@ static inline void sbc_analyze_4b_8s_simd(int16_t *pcm, int16_t *x,
 	sbc_analyze_eight_simd(x + 0, out, analysis_consts_fixed8_simd_even);
 }
 
+#ifdef __GNUC__
+#define SBC_ALWAYS_INLINE __attribute__((always_inline))
+#else
+#define SBC_ALWAYS_INLINE inline
+#endif
+
+/*
+ * Input a new portion of data to encode into X buffer
+ */
+static SBC_ALWAYS_INLINE int sbc_encoder_process_input_s4_internal(
+	int position,
+	int16_t *pcm, int16_t X[2][SBC_X_BUFFER_SIZE],
+	int nsamples, int nchannels, int swap_endian)
+{
+	/* handle X buffer wraparound */
+	if (position < nsamples) {
+		if (nchannels > 0)
+			memcpy(&X[0][SBC_X_BUFFER_SIZE - 36], &X[0][position],
+							36 * sizeof(int16_t));
+		if (nchannels > 1)
+			memcpy(&X[1][SBC_X_BUFFER_SIZE - 36], &X[1][position],
+							36 * sizeof(int16_t));
+		position = SBC_X_BUFFER_SIZE - 36;
+	}
+
+	#define PCM(i) (swap_endian ? bswap_16(pcm[i]) : pcm[i])
+	/* copy/permutate audio samples */
+	while ((nsamples -= 8) >= 0) {
+		position -= 8;
+		if (nchannels > 0) {
+			int16_t *x = &X[0][position];
+			x[0]  = PCM(0 + 7 * nchannels);
+			x[1]  = PCM(0 + 3 * nchannels);
+			x[2]  = PCM(0 + 6 * nchannels);
+			x[3]  = PCM(0 + 4 * nchannels);
+			x[4]  = PCM(0 + 0 * nchannels);
+			x[5]  = PCM(0 + 2 * nchannels);
+			x[6]  = PCM(0 + 1 * nchannels);
+			x[7]  = PCM(0 + 5 * nchannels);
+		}
+		if (nchannels > 1) {
+			int16_t *x = &X[1][position];
+			x[0]  = PCM(1 + 7 * nchannels);
+			x[1]  = PCM(1 + 3 * nchannels);
+			x[2]  = PCM(1 + 6 * nchannels);
+			x[3]  = PCM(1 + 4 * nchannels);
+			x[4]  = PCM(1 + 0 * nchannels);
+			x[5]  = PCM(1 + 2 * nchannels);
+			x[6]  = PCM(1 + 1 * nchannels);
+			x[7]  = PCM(1 + 5 * nchannels);
+		}
+		pcm += 8 * nchannels;
+	}
+	#undef PCM
+
+	return position;
+}
+
+static SBC_ALWAYS_INLINE int sbc_encoder_process_input_s8_internal(
+	int position,
+	int16_t *pcm, int16_t X[2][SBC_X_BUFFER_SIZE],
+	int nsamples, int nchannels, int swap_endian)
+{
+	/* handle X buffer wraparound */
+	if (position < nsamples) {
+		if (nchannels > 0)
+			memcpy(&X[0][SBC_X_BUFFER_SIZE - 72], &X[0][position],
+							72 * sizeof(int16_t));
+		if (nchannels > 1)
+			memcpy(&X[1][SBC_X_BUFFER_SIZE - 72], &X[1][position],
+							72 * sizeof(int16_t));
+		position = SBC_X_BUFFER_SIZE - 72;
+	}
+
+	#define PCM(i) (swap_endian ? bswap_16(pcm[i]) : pcm[i])
+	/* copy/permutate audio samples */
+	while ((nsamples -= 16) >= 0) {
+		position -= 16;
+		if (nchannels > 0) {
+			int16_t *x = &X[0][position];
+			x[0]  = PCM(0 + 15 * nchannels);
+			x[1]  = PCM(0 + 7 * nchannels);
+			x[2]  = PCM(0 + 14 * nchannels);
+			x[3]  = PCM(0 + 8 * nchannels);
+			x[4]  = PCM(0 + 13 * nchannels);
+			x[5]  = PCM(0 + 9 * nchannels);
+			x[6]  = PCM(0 + 12 * nchannels);
+			x[7]  = PCM(0 + 10 * nchannels);
+			x[8]  = PCM(0 + 11 * nchannels);
+			x[9]  = PCM(0 + 3 * nchannels);
+			x[10] = PCM(0 + 6 * nchannels);
+			x[11] = PCM(0 + 0 * nchannels);
+			x[12] = PCM(0 + 5 * nchannels);
+			x[13] = PCM(0 + 1 * nchannels);
+			x[14] = PCM(0 + 4 * nchannels);
+			x[15] = PCM(0 + 2 * nchannels);
+		}
+		if (nchannels > 1) {
+			int16_t *x = &X[1][position];
+			x[0]  = PCM(1 + 15 * nchannels);
+			x[1]  = PCM(1 + 7 * nchannels);
+			x[2]  = PCM(1 + 14 * nchannels);
+			x[3]  = PCM(1 + 8 * nchannels);
+			x[4]  = PCM(1 + 13 * nchannels);
+			x[5]  = PCM(1 + 9 * nchannels);
+			x[6]  = PCM(1 + 12 * nchannels);
+			x[7]  = PCM(1 + 10 * nchannels);
+			x[8]  = PCM(1 + 11 * nchannels);
+			x[9]  = PCM(1 + 3 * nchannels);
+			x[10] = PCM(1 + 6 * nchannels);
+			x[11] = PCM(1 + 0 * nchannels);
+			x[12] = PCM(1 + 5 * nchannels);
+			x[13] = PCM(1 + 1 * nchannels);
+			x[14] = PCM(1 + 4 * nchannels);
+			x[15] = PCM(1 + 2 * nchannels);
+		}
+		pcm += 16 * nchannels;
+	}
+	#undef PCM
+
+	return position;
+}
+
+static int sbc_encoder_process_input_4s(int position,
+		int16_t *pcm, int16_t X[2][SBC_X_BUFFER_SIZE],
+		int nsamples, int nchannels, int swap_endian)
+{
+	if (nchannels > 1) {
+		if (swap_endian) {
+			return sbc_encoder_process_input_s4_internal(
+				position, pcm, X, nsamples, 2, 1);
+		} else {
+			return sbc_encoder_process_input_s4_internal(
+				position, pcm, X, nsamples, 2, 0);
+		}
+	} else {
+		if (swap_endian) {
+			return sbc_encoder_process_input_s4_internal(
+				position, pcm, X, nsamples, 1, 1);
+		} else {
+			return sbc_encoder_process_input_s4_internal(
+				position, pcm, X, nsamples, 1, 0);
+		}
+	}
+}
+
+static int sbc_encoder_process_input_8s(int position,
+		int16_t *pcm, int16_t X[2][SBC_X_BUFFER_SIZE],
+		int nsamples, int nchannels, int swap_endian)
+{
+	if (nchannels > 1) {
+		if (swap_endian) {
+			return sbc_encoder_process_input_s8_internal(
+				position, pcm, X, nsamples, 2, 1);
+		} else {
+			return sbc_encoder_process_input_s8_internal(
+				position, pcm, X, nsamples, 2, 0);
+		}
+	} else {
+		if (swap_endian) {
+			return sbc_encoder_process_input_s8_internal(
+				position, pcm, X, nsamples, 1, 1);
+		} else {
+			return sbc_encoder_process_input_s8_internal(
+				position, pcm, X, nsamples, 1, 0);
+		}
+	}
+}
+
 /*
  * Detect CPU features and setup function pointers
  */
 void sbc_init_primitives(struct sbc_encoder_state *state)
 {
 	/* Default implementation for analyze functions */
-	state->sbc_analyze_4b_4s = sbc_analyze_4b_4s;
-	state->sbc_analyze_4b_8s = sbc_analyze_4b_8s;
+	state->sbc_analyze_4b_4s = sbc_analyze_4b_4s_simd;
+	state->sbc_analyze_4b_8s = sbc_analyze_4b_8s_simd;
+
+	/* Default implementation for input reordering / deinterleaving */
+	state->sbc_encoder_process_input_4s = sbc_encoder_process_input_4s;
+	state->sbc_encoder_process_input_8s = sbc_encoder_process_input_8s;
 
 	/* X86/AMD64 optimizations */
 #ifdef SBC_BUILD_WITH_MMX_SUPPORT
diff --git a/sbc/sbc_primitives.h b/sbc/sbc_primitives.h
index 91b72ee..71b08f1 100644
--- a/sbc/sbc_primitives.h
+++ b/sbc/sbc_primitives.h
@@ -27,19 +27,23 @@
 #define __SBC_PRIMITIVES_H
 
 #define SCALE_OUT_BITS 15
+#define SBC_X_BUFFER_SIZE 328
 
 struct sbc_encoder_state {
-	int subbands;
-	int position[2];
-	int16_t SBC_ALIGNED X[2][256];
+	int position;
+	int16_t SBC_ALIGNED X[2][SBC_X_BUFFER_SIZE];
 	/* Polyphase analysis filter for 4 subbands configuration,
 	 * it handles 4 blocks at once */
-	void (*sbc_analyze_4b_4s)(int16_t *pcm, int16_t *x,
-					int32_t *out, int out_stride);
+	void (*sbc_analyze_4b_4s)(int16_t *x, int32_t *out, int out_stride);
 	/* Polyphase analysis filter for 8 subbands configuration,
 	 * it handles 4 blocks at once */
-	void (*sbc_analyze_4b_8s)(int16_t *pcm, int16_t *x,
-					int32_t *out, int out_stride);
+	void (*sbc_analyze_4b_8s)(int16_t *x, int32_t *out, int out_stride);
+	int (*sbc_encoder_process_input_4s)(int position,
+			int16_t *pcm, int16_t X[2][SBC_X_BUFFER_SIZE],
+			int nsamples, int nchannels, int swap_endian);
+	int (*sbc_encoder_process_input_8s)(int position,
+			int16_t *pcm, int16_t X[2][SBC_X_BUFFER_SIZE],
+			int nsamples, int nchannels, int swap_endian);
 };
 
 /*
diff --git a/sbc/sbc_primitives_mmx.c b/sbc/sbc_primitives_mmx.c
index 972e813..7db4af7 100644
--- a/sbc/sbc_primitives_mmx.c
+++ b/sbc/sbc_primitives_mmx.c
@@ -245,28 +245,9 @@ static inline void sbc_analyze_eight_mmx(const int16_t *in, int32_t *out,
 		: "memory");
 }
 
-static inline void sbc_analyze_4b_4s_mmx(int16_t *pcm, int16_t *x,
-						int32_t *out, int out_stride)
+static inline void sbc_analyze_4b_4s_mmx(int16_t *x, int32_t *out,
+						int out_stride)
 {
-	/* Fetch audio samples and do input data reordering for SIMD */
-	x[64] = x[0]  = pcm[8 + 7];
-	x[65] = x[1]  = pcm[8 + 3];
-	x[66] = x[2]  = pcm[8 + 6];
-	x[67] = x[3]  = pcm[8 + 4];
-	x[68] = x[4]  = pcm[8 + 0];
-	x[69] = x[5]  = pcm[8 + 2];
-	x[70] = x[6]  = pcm[8 + 1];
-	x[71] = x[7]  = pcm[8 + 5];
-
-	x[72] = x[8]  = pcm[0 + 7];
-	x[73] = x[9]  = pcm[0 + 3];
-	x[74] = x[10] = pcm[0 + 6];
-	x[75] = x[11] = pcm[0 + 4];
-	x[76] = x[12] = pcm[0 + 0];
-	x[77] = x[13] = pcm[0 + 2];
-	x[78] = x[14] = pcm[0 + 1];
-	x[79] = x[15] = pcm[0 + 5];
-
 	/* Analyze blocks */
 	sbc_analyze_four_mmx(x + 12, out, analysis_consts_fixed4_simd_odd);
 	out += out_stride;
@@ -279,44 +260,9 @@ static inline void sbc_analyze_4b_4s_mmx(int16_t *pcm, int16_t *x,
 	asm volatile ("emms\n");
 }
 
-static inline void sbc_analyze_4b_8s_mmx(int16_t *pcm, int16_t *x,
-						int32_t *out, int out_stride)
+static inline void sbc_analyze_4b_8s_mmx(int16_t *x, int32_t *out,
+						int out_stride)
 {
-	/* Fetch audio samples and do input data reordering for SIMD */
-	x[128] = x[0]  = pcm[16 + 15];
-	x[129] = x[1]  = pcm[16 + 7];
-	x[130] = x[2]  = pcm[16 + 14];
-	x[131] = x[3]  = pcm[16 + 8];
-	x[132] = x[4]  = pcm[16 + 13];
-	x[133] = x[5]  = pcm[16 + 9];
-	x[134] = x[6]  = pcm[16 + 12];
-	x[135] = x[7]  = pcm[16 + 10];
-	x[136] = x[8]  = pcm[16 + 11];
-	x[137] = x[9]  = pcm[16 + 3];
-	x[138] = x[10] = pcm[16 + 6];
-	x[139] = x[11] = pcm[16 + 0];
-	x[140] = x[12] = pcm[16 + 5];
-	x[141] = x[13] = pcm[16 + 1];
-	x[142] = x[14] = pcm[16 + 4];
-	x[143] = x[15] = pcm[16 + 2];
-
-	x[144] = x[16] = pcm[0 + 15];
-	x[145] = x[17] = pcm[0 + 7];
-	x[146] = x[18] = pcm[0 + 14];
-	x[147] = x[19] = pcm[0 + 8];
-	x[148] = x[20] = pcm[0 + 13];
-	x[149] = x[21] = pcm[0 + 9];
-	x[150] = x[22] = pcm[0 + 12];
-	x[151] = x[23] = pcm[0 + 10];
-	x[152] = x[24] = pcm[0 + 11];
-	x[153] = x[25] = pcm[0 + 3];
-	x[154] = x[26] = pcm[0 + 6];
-	x[155] = x[27] = pcm[0 + 0];
-	x[156] = x[28] = pcm[0 + 5];
-	x[157] = x[29] = pcm[0 + 1];
-	x[158] = x[30] = pcm[0 + 4];
-	x[159] = x[31] = pcm[0 + 2];
-
 	/* Analyze blocks */
 	sbc_analyze_eight_mmx(x + 24, out, analysis_consts_fixed8_simd_odd);
 	out += out_stride;
diff --git a/sbc/sbc_primitives_neon.c b/sbc/sbc_primitives_neon.c
index 7589a98..d9c12f9 100644
--- a/sbc/sbc_primitives_neon.c
+++ b/sbc/sbc_primitives_neon.c
@@ -210,28 +210,9 @@ static inline void _sbc_analyze_eight_neon(const int16_t *in, int32_t *out,
 			"d18", "d19");
 }
 
-static inline void sbc_analyze_4b_4s_neon(int16_t *pcm, int16_t *x,
+static inline void sbc_analyze_4b_4s_neon(int16_t *x,
 						int32_t *out, int out_stride)
 {
-	/* Fetch audio samples and do input data reordering for SIMD */
-	x[64] = x[0]  = pcm[8 + 7];
-	x[65] = x[1]  = pcm[8 + 3];
-	x[66] = x[2]  = pcm[8 + 6];
-	x[67] = x[3]  = pcm[8 + 4];
-	x[68] = x[4]  = pcm[8 + 0];
-	x[69] = x[5]  = pcm[8 + 2];
-	x[70] = x[6]  = pcm[8 + 1];
-	x[71] = x[7]  = pcm[8 + 5];
-
-	x[72] = x[8]  = pcm[0 + 7];
-	x[73] = x[9]  = pcm[0 + 3];
-	x[74] = x[10] = pcm[0 + 6];
-	x[75] = x[11] = pcm[0 + 4];
-	x[76] = x[12] = pcm[0 + 0];
-	x[77] = x[13] = pcm[0 + 2];
-	x[78] = x[14] = pcm[0 + 1];
-	x[79] = x[15] = pcm[0 + 5];
-
 	/* Analyze blocks */
 	_sbc_analyze_four_neon(x + 12, out, analysis_consts_fixed4_simd_odd);
 	out += out_stride;
@@ -242,44 +223,9 @@ static inline void sbc_analyze_4b_4s_neon(int16_t *pcm, int16_t *x,
 	_sbc_analyze_four_neon(x + 0, out, analysis_consts_fixed4_simd_even);
 }
 
-static inline void sbc_analyze_4b_8s_neon(int16_t *pcm, int16_t *x,
+static inline void sbc_analyze_4b_8s_neon(int16_t *x,
 						int32_t *out, int out_stride)
 {
-	/* Fetch audio samples and do input data reordering for SIMD */
-	x[128] = x[0]  = pcm[16 + 15];
-	x[129] = x[1]  = pcm[16 + 7];
-	x[130] = x[2]  = pcm[16 + 14];
-	x[131] = x[3]  = pcm[16 + 8];
-	x[132] = x[4]  = pcm[16 + 13];
-	x[133] = x[5]  = pcm[16 + 9];
-	x[134] = x[6]  = pcm[16 + 12];
-	x[135] = x[7]  = pcm[16 + 10];
-	x[136] = x[8]  = pcm[16 + 11];
-	x[137] = x[9]  = pcm[16 + 3];
-	x[138] = x[10] = pcm[16 + 6];
-	x[139] = x[11] = pcm[16 + 0];
-	x[140] = x[12] = pcm[16 + 5];
-	x[141] = x[13] = pcm[16 + 1];
-	x[142] = x[14] = pcm[16 + 4];
-	x[143] = x[15] = pcm[16 + 2];
-
-	x[144] = x[16] = pcm[0 + 15];
-	x[145] = x[17] = pcm[0 + 7];
-	x[146] = x[18] = pcm[0 + 14];
-	x[147] = x[19] = pcm[0 + 8];
-	x[148] = x[20] = pcm[0 + 13];
-	x[149] = x[21] = pcm[0 + 9];
-	x[150] = x[22] = pcm[0 + 12];
-	x[151] = x[23] = pcm[0 + 10];
-	x[152] = x[24] = pcm[0 + 11];
-	x[153] = x[25] = pcm[0 + 3];
-	x[154] = x[26] = pcm[0 + 6];
-	x[155] = x[27] = pcm[0 + 0];
-	x[156] = x[28] = pcm[0 + 5];
-	x[157] = x[29] = pcm[0 + 1];
-	x[158] = x[30] = pcm[0 + 4];
-	x[159] = x[31] = pcm[0 + 2];
-
 	/* Analyze blocks */
 	_sbc_analyze_eight_neon(x + 24, out, analysis_consts_fixed8_simd_odd);
 	out += out_stride;