diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5203492..f6c34c1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -38,7 +38,7 @@ if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
 endif("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
 
 # Set default flags (from opus-ng build)
-set(CMAKE_C_FLAGS "-O2 -fvisibility=hidden -fstack-protector-strong -W -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes")
+set(CMAKE_C_FLAGS "-O2 -fstack-protector-strong -W -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -DHAVE_CONFIG_H")
 
 if(NOT CMAKE_CROSSCOMPILING)
     # Python tells us the CFLAGS we need for Embedding Python in a C lib.
diff --git a/cmake/BuildOpus.cmake b/cmake/BuildOpus.cmake
index bc655dd..a3766d4 100644
--- a/cmake/BuildOpus.cmake
+++ b/cmake/BuildOpus.cmake
@@ -15,6 +15,7 @@ if(APPLE AND BUILD_OSX_UNIVERSAL)
 ExternalProject_Add(build_opus_x86
     DOWNLOAD_EXTRACT_TIMESTAMP NO
     BUILD_IN_SOURCE 1
+    PATCH_COMMAND sh -c "patch dnn/nnet.h < ${CMAKE_SOURCE_DIR}/src/opus-export.diff"
     CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=x86_64-apple-darwin --target=x86_64-apple-darwin CFLAGS=-arch\ x86_64\ -O2\ -mmacosx-version-min=10.11
     BUILD_COMMAND $(MAKE)
     INSTALL_COMMAND ""
@@ -23,6 +24,7 @@ ExternalProject_Add(build_opus_x86
 ExternalProject_Add(build_opus_arm
     DOWNLOAD_EXTRACT_TIMESTAMP NO
     BUILD_IN_SOURCE 1
+    PATCH_COMMAND sh -c "patch dnn/nnet.h < ${CMAKE_SOURCE_DIR}/src/opus-export.diff"
     CONFIGURE_COMMAND ${CONFIGURE_COMMAND} --host=aarch64-apple-darwin --target=aarch64-apple-darwin CFLAGS=-arch\ arm64\ -O2\ -mmacosx-version-min=10.11
     BUILD_COMMAND $(MAKE)
     INSTALL_COMMAND ""
@@ -56,6 +58,7 @@ else(APPLE AND BUILD_OSX_UNIVERSAL)
 ExternalProject_Add(build_opus
     DOWNLOAD_EXTRACT_TIMESTAMP NO
     BUILD_IN_SOURCE 1
+    PATCH_COMMAND sh -c "patch dnn/nnet.h < ${CMAKE_SOURCE_DIR}/src/opus-export.diff"
     CONFIGURE_COMMAND ${CONFIGURE_COMMAND}
     BUILD_COMMAND $(MAKE)
     INSTALL_COMMAND ""
@@ -72,5 +75,5 @@ set_target_properties(opus PROPERTIES
     IMPORTED_IMPLIB   "${BINARY_DIR}/.libs/libopus${CMAKE_STATIC_LIBRARY_SUFFIX}"
 )
 
-include_directories(${SOURCE_DIR}/dnn ${SOURCE_DIR}/celt ${SOURCE_DIR}/include)
+include_directories(${SOURCE_DIR}/dnn ${SOURCE_DIR}/celt ${SOURCE_DIR}/include ${SOURCE_DIR})
 endif(APPLE AND BUILD_OSX_UNIVERSAL)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 2528c62..d1bf376 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -28,3 +28,6 @@ set_target_properties(radecore PROPERTIES
     SOVERSION "0.1"
     PUBLIC_HEADER "rade_api.h"
 )
+
+add_executable(test_rade_enc test_rade_enc.c)
+target_link_libraries(test_rade_enc radecore opus m)
diff --git a/src/opus-export.diff b/src/opus-export.diff
new file mode 100644
index 0000000..36446af
--- /dev/null
+++ b/src/opus-export.diff
@@ -0,0 +1,25 @@
+30a31,32
+> #define RADE_EXPORT __attribute__((visibility("default")))
+> 
+88,93c90,95
+< void compute_generic_dense(const LinearLayer *layer, float *output, const float *input, int activation, int arch);
+< void compute_generic_gru(const LinearLayer *input_weights, const LinearLayer *recurrent_weights, float *state, const float *in, int arch);
+< void compute_generic_conv1d(const LinearLayer *layer, float *output, float *mem, const float *input, int input_size, int activation, int arch);
+< void compute_generic_conv1d_dilation(const LinearLayer *layer, float *output, float *mem, const float *input, int input_size, int dilation, int activation, int arch);
+< void compute_glu(const LinearLayer *layer, float *output, const float *input, int arch);
+< void compute_gated_activation(const LinearLayer *layer, float *output, const float *input, int activation, int arch);
+---
+> void RADE_EXPORT compute_generic_dense(const LinearLayer *layer, float *output, const float *input, int activation, int arch);
+> void RADE_EXPORT compute_generic_gru(const LinearLayer *input_weights, const LinearLayer *recurrent_weights, float *state, const float *in, int arch);
+> void RADE_EXPORT compute_generic_conv1d(const LinearLayer *layer, float *output, float *mem, const float *input, int input_size, int activation, int arch);
+> void RADE_EXPORT compute_generic_conv1d_dilation(const LinearLayer *layer, float *output, float *mem, const float *input, int input_size, int dilation, int activation, int arch);
+> void RADE_EXPORT compute_glu(const LinearLayer *layer, float *output, const float *input, int arch);
+> void RADE_EXPORT compute_gated_activation(const LinearLayer *layer, float *output, const float *input, int activation, int arch);
+108c110
+< int linear_init(LinearLayer *layer, const WeightArray *arrays,
+---
+> int RADE_EXPORT linear_init(LinearLayer *layer, const WeightArray *arrays,
+119c121
+< int conv2d_init(Conv2dLayer *layer, const WeightArray *arrays,
+---
+> int RADE_EXPORT conv2d_init(Conv2dLayer *layer, const WeightArray *arrays,
diff --git a/src/rade_core.h b/src/rade_core.h
index 0b1f787..e1827dc 100644
--- a/src/rade_core.h
+++ b/src/rade_core.h
@@ -10,7 +10,8 @@
 
    - 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.
+   documentatio
+   n 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
@@ -32,7 +33,7 @@
 
 #include "opus_types.h"
 
-typedef struct RADEDec RADEDec;
+typedef struct RADEDec RADEDec; 
 typedef struct RADEEnc RADEEnc;
 typedef struct RADEDecStruct RADEDecState;
 typedef struct RADEEncStruct RADEEncState;
diff --git a/src/rade_enc_data.h b/src/rade_enc_data.h
index 778041b..36c2edf 100644
--- a/src/rade_enc_data.h
+++ b/src/rade_enc_data.h
@@ -99,5 +99,6 @@ struct RADEEnc {
 };
 
 int init_radeenc(RADEEnc *model, const WeightArray *arrays);
+extern const WeightArray radeenc_arrays[];
 
 #endif /* RADE_ENC_DATA_H */
diff --git a/src/test_rade_enc.c b/src/test_rade_enc.c
new file mode 100644
index 0000000..c6a8996
--- /dev/null
+++ b/src/test_rade_enc.c
@@ -0,0 +1,39 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "rade_core.h" 
+#include "rade_enc.h"
+#include "rade_enc_data.h"
+
+int opus_select_arch(void);
+
+int main(void)
+{
+    RADEEnc      enc_model;
+    RADEEncState enc_state;
+
+    if (init_radeenc(&enc_model, rdovaeenc_arrays) != 0) {
+        fprintf(stderr, "Error initialising encoder model\n");
+        exit(1);        
+    }
+    rade_init_encoder(&enc_state);
+
+    int n_features_in = enc_model.enc_dense1.nb_inputs;
+    assert(enc_model.enc_zdense.nb_outputs == RADE_LATENT_DIM);
+    fprintf(stderr, "n_features_in: %d n_z_out: %d", n_features_in, enc_model.enc_zdense.nb_outputs);
+    float features[n_features_in];
+    float z[RADE_LATENT_DIM];
+    int arch = opus_select_arch();
+
+    while((size_t)n_features_in == fread(features, sizeof(float), n_features_in, stdin)) {
+        rade_core_encoder(&enc_state, &enc_model, z, features, arch);
+        fwrite(z, sizeof(float), RADE_LATENT_DIM, stdout);
+        fflush(stdout);
+    }
+
+    return 0;
+}