diff --git a/CMakeLists.txt b/CMakeLists.txt
old mode 100755
new mode 100644
index 77e95e1..466efa0
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,9 +1,10 @@
 cmake_minimum_required(VERSION 2.8)
-project(SimpleDenoise LANGUAGES C)
+project(sadenoise LANGUAGES C)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 SET(CMAKE_BUILD_TYPE "Release")
 
-include_directories(include)
-add_executable(${PROJECT_NAME} main.c)
+include_directories(src)
 
-target_link_libraries(${PROJECT_NAME} -lm)
\ No newline at end of file
+add_executable(${PROJECT_NAME} src/main.c)
+
+target_link_libraries(${PROJECT_NAME} -lm)
diff --git a/LICENSE b/LICENSE
old mode 100755
new mode 100644
diff --git a/README.md b/README.md
old mode 100755
new mode 100644
diff --git a/sample.wav b/sample.wav
old mode 100755
new mode 100644
diff --git a/dr_mp3.h b/src/dr_mp3.h
old mode 100755
new mode 100644
similarity index 100%
rename from dr_mp3.h
rename to src/dr_mp3.h
diff --git a/dr_wav.h b/src/dr_wav.h
old mode 100755
new mode 100644
similarity index 100%
rename from dr_wav.h
rename to src/dr_wav.h
diff --git a/main.c b/src/main.c
old mode 100755
new mode 100644
similarity index 95%
rename from main.c
rename to src/main.c
index 49ef03e..65226b3
--- a/main.c
+++ b/src/main.c
@@ -265,22 +265,21 @@ int SimpleDenoise_Proc(SimpleDenoiseHandle *handle, const float *input, float *o
     return 1;
 }
 
-void printUsage()
+void printUsage(char *pname)
 {
     printf("usage:\n");
-    printf("./SimpleDenoise input.wav\n");
-    printf("./SimpleDenoise input.mp3\n");
+    printf("%s input.wav\n", pname);
+    printf("%s input.mp3\n", pname);
     printf("or\n");
-    printf("./SimpleDenoise input.wav output.wav\n");
-    printf("./SimpleDenoise input.mp3 output.wav\n");
-    printf("press any key to exit.\n");
-    getchar();
+    printf("%s input.wav output.wav\n", pname);
+    printf("%s input.mp3 output.wav\n", pname);
 }
 
-void simpleDenoise(char *in_file, char *out_file)
+void simpleDenoise(char *in_file, char *out_file, char *pname)
 {
-    if (in_file == NULL || out_file == NULL) {
-        printUsage();
+    if (in_file == NULL || out_file == NULL)
+    {
+        printUsage(pname);
         return;
     }
     uint32_t sampleRate = 0;
@@ -341,15 +340,16 @@ int main(int argc, char *argv[])
 {
     printf("Audio Processing\n");
     printf("blog:http://cpuimage.cnblogs.com/\n");
-    printf("Audio Simple Denoise\n");
+    printf("Simple Audio Denoise\n");
+    char *pname = argv[0];
     if (argc < 2) {
-        printUsage();
+        printUsage(pname);
         return -1;
     }
     char *in_file = argv[1];
     if (argc > 2) {
         char *out_file = argv[2];
-        simpleDenoise(in_file, out_file);
+        simpleDenoise(in_file, out_file, pname);
     }
     else {
         char drive[3];
@@ -359,7 +359,7 @@ int main(int argc, char *argv[])
         char out_file[1024];
         splitpath(in_file, drive, dir, fname, ext);
         sprintf(out_file, "%s%s%s_out.wav", drive, dir, fname);
-        simpleDenoise(in_file, out_file);
+        simpleDenoise(in_file, out_file, pname);
     }
     printf("done.\n");
     return 0;
diff --git a/stb_fft.h b/src/stb_fft.h
old mode 100755
new mode 100644
similarity index 100%
rename from stb_fft.h
rename to src/stb_fft.h
diff --git a/timing.h b/src/timing.h
old mode 100755
new mode 100644
similarity index 100%
rename from timing.h
rename to src/timing.h