diff --git a/src/sound_lib/external/__init__.py b/src/sound_lib/external/__init__.py
index 69f5de51..d7b031be 100644
--- a/src/sound_lib/external/__init__.py
+++ b/src/sound_lib/external/__init__.py
@@ -4,5 +4,6 @@ import platform
 if platform.system() != 'Darwin':
  import sound_lib.external.pybass_aac
  import sound_lib.external.pybass_alac
+ import sound_lib.external.pybassopus
  import sound_lib.external.pybassflac
  import sound_lib.external.pybassmidi
diff --git a/src/sound_lib/external/pybassopus.py b/src/sound_lib/external/pybassopus.py
new file mode 100644
index 00000000..093712d5
--- /dev/null
+++ b/src/sound_lib/external/pybassopus.py
@@ -0,0 +1,47 @@
+# Copyright(c) Max Kolosov 2009 maxkolosov@inbox.ru
+# http://vosolok2008.narod.ru
+# BSD license
+
+__version__ = '0.1'
+__versionTime__ = '2009-11-15'
+__author__ = 'Max Kolosov <maxkolosov@inbox.ru>'
+__doc__ = '''
+pybassflac.py - is ctypes python module for
+BASSFLAC - extension to the BASS audio library,
+enabling the playing of FLAC (Free Lossless Audio Codec) encoded files.
+'''
+
+import os, sys, ctypes, pybass
+from paths import x86_path, x64_path
+import libloader
+
+bassopus_module = libloader.load_library('bassopus', x86_path=x86_path, x64_path=x64_path)
+func_type = libloader.get_functype()
+#Register the plugin with the Bass plugin system.
+pybass.BASS_PluginLoad(libloader.find_library_path('bassopus', x86_path=x86_path, x64_path=x64_path), 0)
+
+QWORD = pybass.QWORD
+HSTREAM = pybass.HSTREAM
+DOWNLOADPROC = pybass.DOWNLOADPROC
+BASS_FILEPROCS = pybass.BASS_FILEPROCS
+
+# BASS_CHANNELINFO type
+BASS_CTYPE_STREAM_OPUS = 0x11200
+
+
+#HSTREAM BASSOPUSDEF(BASS_OPUS_StreamCreateFile)(BOOL mem, const void *file, QWORD offset, QWORD length, DWORD flags);
+BASS_OPUS_StreamCreateFile = func_type(HSTREAM, ctypes.c_byte, ctypes.c_void_p, QWORD, QWORD, ctypes.c_ulong)(('BASS_OPUS_StreamCreateFile', bassopus_module))
+#HSTREAM BASSFLACDEF(BASS_FLAC_StreamCreateURL)(const char *url, DWORD offset, DWORD flags, DOWNLOADPROC *proc, void *user);
+BASS_OPUS_StreamCreateURL = func_type(HSTREAM, ctypes.c_char_p, ctypes.c_ulong, ctypes.c_ulong, DOWNLOADPROC, ctypes.c_void_p)(('BASS_OPUS_StreamCreateURL', bassopus_module))
+#HSTREAM BASSFLACDEF(BASS_FLAC_StreamCreateFileUser)(DWORD system, DWORD flags, const BASS_FILEPROCS *procs, void *user);
+BASS_OPUS_StreamCreateFileUser = func_type(HSTREAM, ctypes.c_ulong, ctypes.c_ulong, ctypes.POINTER(BASS_FILEPROCS), ctypes.c_void_p)(('BASS_OPUS_StreamCreateFileUser', bassopus_module))
+
+
+if __name__ == "__main__":
+	if not pybass.BASS_Init(-1, 44100, 0, 0, 0):
+		print 'BASS_Init error', pybass.get_error_description(pybass.BASS_ErrorGetCode())
+	else:
+		handle = BASS_OPUS_StreamCreateFile(False, 'test.opus', 0, 0, 0)
+		pybass.play_handle(handle)
+		if not pybass.BASS_Free():
+			print 'BASS_Free error', pybass.get_error_description(pybass.BASS_ErrorGetCode())
diff --git a/src/sound_lib/lib/x64/bassopus.dll b/src/sound_lib/lib/x64/bassopus.dll
new file mode 100644
index 00000000..cd842695
Binary files /dev/null and b/src/sound_lib/lib/x64/bassopus.dll differ
diff --git a/src/sound_lib/lib/x64/libbassopus.dylib b/src/sound_lib/lib/x64/libbassopus.dylib
new file mode 100644
index 00000000..d076f215
Binary files /dev/null and b/src/sound_lib/lib/x64/libbassopus.dylib differ
diff --git a/src/sound_lib/lib/x64/libbassopus.so b/src/sound_lib/lib/x64/libbassopus.so
new file mode 100644
index 00000000..3920b187
Binary files /dev/null and b/src/sound_lib/lib/x64/libbassopus.so differ
diff --git a/src/sound_lib/lib/x86/bassopus.dll b/src/sound_lib/lib/x86/bassopus.dll
new file mode 100644
index 00000000..b8f1a094
Binary files /dev/null and b/src/sound_lib/lib/x86/bassopus.dll differ
diff --git a/src/sound_lib/lib/x86/libbassopus.dylib b/src/sound_lib/lib/x86/libbassopus.dylib
new file mode 100644
index 00000000..d076f215
Binary files /dev/null and b/src/sound_lib/lib/x86/libbassopus.dylib differ
diff --git a/src/sound_lib/lib/x86/libbassopus.so b/src/sound_lib/lib/x86/libbassopus.so
new file mode 100644
index 00000000..93c8a52f
Binary files /dev/null and b/src/sound_lib/lib/x86/libbassopus.so differ