diff --git a/hsmodemLinux/hsmodem b/hsmodemLinux/hsmodem
deleted file mode 100755
index 421cc7f..0000000
Binary files a/hsmodemLinux/hsmodem and /dev/null differ
diff --git a/hsmodemLinux/wav2pcm.py b/hsmodemLinux/wav2pcm.py
new file mode 100644
index 0000000..753510d
--- /dev/null
+++ b/hsmodemLinux/wav2pcm.py
@@ -0,0 +1,22 @@
+from pydub import AudioSegment
+import os
+import sys
+
+def wav2pcm(wav_dir,out_pcm_dir):
+
+    for path,pathname,filenames in os.walk(wav_dir):
+        for filename in filenames:
+            
+            sound = AudioSegment.from_file(os.path.join(path,filename))
+            outfilename=os.path.join(out_pcm_dir,filename.split('.wav')[0]+'.pcm')
+            sound.export(outfilename, format='s16le', bitrate='8k')
+
+
+
+if __name__=="__main__":
+
+    if len(sys.argv) != 3:
+        print("usage: python wav2pcm.py in_dir  out_dir")    
+    else:
+        wav2pcm(sys.argv[1],sys.argv[2])
+