diff --git a/src/nnet.c b/src/nnet.c
index 1da7d70..cecfda1 100644
--- a/src/nnet.c
+++ b/src/nnet.c
@@ -41,10 +41,8 @@
 
 #define SOFTMAX_HACK
 
-#ifdef __AVX__
+#if defined(__AVX__) || (__SSE__)
 #include "vec_avx.h"
-#elif __SSE__
-#include "vec_sse.h"
 #elif __ARM_NEON__ || __aarch64__
 #include "vec_neon.h"
 #else
diff --git a/src/test_vec.c b/src/test_vec.c
index ba33469..a4b0b64 100644
--- a/src/test_vec.c
+++ b/src/test_vec.c
@@ -29,7 +29,7 @@ const char simd[]="AVX2";
 const char simd[]="AVX";
 #endif
 #elif __SSE__
-#include "vec_sse.h"
+#include "vec_avx.h"
 const char simd[]="SSE";
 #elif __ARM_NEON__ || __aarch64__
 #include "vec_neon.h"
diff --git a/src/vec_sse.h b/src/vec_sse.h
deleted file mode 100644
index 82ddd42..0000000
--- a/src/vec_sse.h
+++ /dev/null
@@ -1,211 +0,0 @@
-/* Copyright (c) 2020 SASANO Takayoshi
-                 2018 David Rowe
-                 2018 Mozilla
-                 2008-2011 Octasic Inc.
-                 2012-2017 Jean-Marc Valin */
-/*
-   Redistribution and use in source and binary forms, with or without
-   modification, are permitted provided that the following conditions
-   are met:
-
-   - Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-
-   - Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
-   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-/*
-  SSE implementation of vector operations, compile with -msse
-  port from Arm NEON support
-*/
-
-#include <xmmintrin.h>
-
-#ifndef LPCNET_TEST
-static float celt_exp2(float x)
-{
-    int integer;
-    float frac;
-    union {
-	float f;
-	opus_uint32 i;
-    } res;
-    integer = floor(x);
-    if (integer < -50)
-	return 0;
-    frac = x-integer;
-    /* K0 = 1, K1 = log(2), K2 = 3-4*log(2), K3 = 3*log(2) - 2 */
-    res.f = 0.99992522f + frac * (0.69583354f
-				  + frac * (0.22606716f + 0.078024523f*frac));
-    res.i = (res.i + (integer<<23)) & 0x7fffffff;
-    return res.f;
-}
-#define celt_exp_sse(x) celt_exp2((x)*1.44269504f)
-
-static float tansig_approx(float x)
-{
-    int i;
-    float y, dy;
-    float sign=1;
-    /* Tests are reversed to catch NaNs */
-    if (!(x<8))
-        return 1;
-    if (!(x>-8))
-        return -1;
-#ifndef FIXED_POINT
-    /* Another check in case of -ffast-math */
-    if (celt_isnan(x))
-	return 0;
-#endif
-    if (x<0)
-    {
-	x=-x;
-	sign=-1;
-    }
-    i = (int)floor(.5f+25*x);
-    x -= .04f*i;
-    y = tansig_table[i];
-    dy = 1-y*y;
-    y = y + x*dy*(1 - y*x);
-    return sign*y;
-}
-
-static OPUS_INLINE float sigmoid_approx(float x)
-{
-    return .5f + .5f*tansig_approx(.5f*x);
-}
-
-static void softmax(float *y, const float *x, int N)
-{
-    int i;
-    for (i=0;i<N;i++)
-        y[i] = celt_exp_sse(x[i]);
-}
-
-static void vec_tanh(float *y, const float *x, int N)
-{
-    int i;
-    for (i=0;i<N;i++)
-    {
-        y[i] = tansig_approx(x[i]);
-    }
-}
-
-static void vec_sigmoid(float *y, const float *x, int N)
-{
-    int i;
-    for (i=0;i<N;i++)
-    {
-        y[i] = sigmoid_approx(x[i]);
-    }
-}
-#endif
-
-static void sgemv_accum16(float *out, const float *weights, int rows, int cols, int col_stride, const float *x)
-{
-    int i, j;
-    for (i=0;i<rows;i+=16)
-    {
-	float * restrict y = &out[i];
-      
-	/* keep y[0..15] in registers for duration of inner loop */
-      
-	__m128 y0_3 = _mm_loadu_ps(&y[0]);
-	__m128 y4_7 = _mm_loadu_ps(&y[4]);
-	__m128 y8_11 = _mm_loadu_ps(&y[8]);
-	__m128 y12_15 = _mm_loadu_ps(&y[12]);
-      
-	for (j=0;j<cols;j++)
-	{
-	    const float * restrict w;
-	    __m128 wvec0_3, wvec4_7, wvec8_11, wvec12_15;
-	    __m128 xj = _mm_set1_ps(x[j]);
-
-	    w = &weights[j*col_stride + i];
-
-	    wvec0_3 = _mm_loadu_ps(&w[0]);
-	    wvec4_7 = _mm_loadu_ps(&w[4]);
-	    wvec8_11 = _mm_loadu_ps(&w[8]);
-	    wvec12_15 = _mm_loadu_ps(&w[12]);
-
-	    wvec0_3 = _mm_mul_ps(wvec0_3, xj);
-	    wvec4_7 = _mm_mul_ps(wvec4_7, xj);
-	    wvec8_11 = _mm_mul_ps(wvec8_11, xj);
-	    wvec12_15 = _mm_mul_ps(wvec12_15, xj);
-
-	    y0_3 = _mm_add_ps(y0_3, wvec0_3);
-	    y4_7 = _mm_add_ps(y4_7, wvec4_7);
-	    y8_11 = _mm_add_ps(y8_11, wvec8_11);
-	    y12_15 = _mm_add_ps(y12_15, wvec12_15);
-	}
-
-	/* save y[0..15] back to memory */
-      
-	_mm_storeu_ps(&y[0], y0_3);
-	_mm_storeu_ps(&y[4], y4_7);
-	_mm_storeu_ps(&y[8], y8_11);
-	_mm_storeu_ps(&y[12], y12_15);
-    }
-}
-
-static void sparse_sgemv_accum16(float *out, const float *w, int rows, const int *idx, const float *x)
-{
-    int i, j;
-    for (i=0;i<rows;i+=16)
-    {
-	int cols;
-	cols = *idx++;
-	float * restrict y = &out[i];
-
-	/* keep y[0..15] in registers for duration of inner loop */
-      
-	__m128 y0_3 = _mm_loadu_ps(&y[0]);
-	__m128 y4_7 = _mm_loadu_ps(&y[4]);
-	__m128 y8_11 = _mm_loadu_ps(&y[8]);
-	__m128 y12_15 = _mm_loadu_ps(&y[12]);
-      
-	for (j=0;j<cols;j++)
-	{
-	    __m128 wvec;
-	    __m128 xj = _mm_set1_ps(x[*idx++]);
-
-	    wvec = _mm_loadu_ps(&w[0]);
-	    wvec = _mm_mul_ps(wvec, xj);
-	    y0_3 = _mm_add_ps(y0_3, wvec);
-
-	    wvec = _mm_loadu_ps(&w[4]);
-	    wvec = _mm_mul_ps(wvec, xj);
-	    y4_7 = _mm_add_ps(y4_7, wvec);
-
-	    wvec = _mm_loadu_ps(&w[8]);
-	    wvec = _mm_mul_ps(wvec, xj);
-	    y8_11 = _mm_add_ps(y8_11, wvec);
-
-	    wvec = _mm_loadu_ps(&w[12]);
-	    wvec = _mm_mul_ps(wvec, xj);
-	    y12_15 = _mm_add_ps(y12_15, wvec);
-
-	    w += 16;
-	}
-
-	/* save y[0..15] back to memory */
-      
-	_mm_storeu_ps(&y[0], y0_3);
-	_mm_storeu_ps(&y[4], y4_7);
-	_mm_storeu_ps(&y[8], y8_11);
-	_mm_storeu_ps(&y[12], y12_15);
-    }
-}