diff --git a/README.md b/README.md
index 18db686..b00c90d 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,9 @@ X Window Recording Tool
 
 ffmpeg configuration
 --------------------
-The ffmpeg configuration requires the following for xcorder to work properly:
-> --extra-libs=-lasound
-> --enable-x11grab
+The ffmpeg build configuration requires the following for xcorder to work properly:
+> `--extra-libs=-lasound` or `--enable-libpulse`
+
+and
+
+> `--enable-x11grab`
diff --git a/audio.py b/audio.py
index aaf8525..3d1ace6 100644
--- a/audio.py
+++ b/audio.py
@@ -22,6 +22,20 @@ def __init__(self):
         self._devices = list()
         self._device = Device()
 
+        args = 'ffmpeg -formats -v 0'
+        popen = subprocess.Popen(args, shell=True,
+                stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+
+        alsa = pulse = False
+        for line in popen.stdout:
+            if "alsa" in line:
+                alsa = True
+            elif "pulse" in line:
+                pulse = True
+
+        if not alsa and not pulse:
+            raise Exception("available ffmpeg installation have not lasound or libpulse enabled")
+
         args = 'pacmd list-sources'
         popen = subprocess.Popen(args, shell=True,
                 stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
@@ -34,7 +48,10 @@ def __init__(self):
                 device.name = line.split(':', 1)[1].strip()
 
             elif line.startswith('device.api = '):
-                device.api = line.split('=', 1)[1].strip().strip('"')
+                api = line.split('=', 1)[1].strip().strip('"')
+                if api == "alsa" and not alsa:
+                    api = "pulse"
+                device.api = api
 
             elif line.startswith('alsa.subdevice = '):
                 device.subdevice = line.split('=', 1)[1].strip().strip('"')
@@ -87,7 +104,8 @@ def __init__(self, name=None, api=None, subdevice=None, card=None,
     # =========================================================================
     @property
     def source(self):
-
+        if self.api == "pulse":
+            return '{deviceName}'.format(deviceName=self.name[1:-1])
         return 'plughw:{c},{s}'.format(c=self.card, s=self.subdevice)
 
     # =========================================================================
diff --git a/exporter.py b/exporter.py
index 1bce828..a142cfb 100644
--- a/exporter.py
+++ b/exporter.py
@@ -15,6 +15,9 @@
 # =============================================================================
 # CLASSES
 # =============================================================================
+import os
+
+
 class Exporter(object):
 
     # =========================================================================
@@ -27,6 +30,7 @@ def __init__(self, workDir=None, exportFile=None):
     # =========================================================================
     def start(self):
 
+        print self.args
         self.makeFileList()
         if not self._proc:
             self._proc = subprocess.Popen(self.args, shell=True,
@@ -53,7 +57,7 @@ def makeFileList(self):
 
         with open(self.fileList, 'w') as fileList:
             for segmentFile in segmentFiles:
-                fileList.write("file '{f}'\n".format(f=segmentFile))
+                fileList.write("file '{f}'\n".format(f=os.path.basename(segmentFile)))
 
     # =========================================================================
     @property
diff --git a/xcorder b/xcorder
index 57a5948..aa20387 100755
--- a/xcorder
+++ b/xcorder
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/bin/env python2
 # =============================================================================
 # Module: xcorder
 # Contacts: Edward Li (drawdeil@gmail.com)