diff --git a/src/noisepy/seis/pnwstore.py b/src/noisepy/seis/pnwstore.py
index 20951304..10aa5453 100644
--- a/src/noisepy/seis/pnwstore.py
+++ b/src/noisepy/seis/pnwstore.py
@@ -125,9 +125,7 @@ def read_data(self, timespan: DateTimeRange, chan: Channel) -> ChannelData:
                 f.seek(byteoffset)
                 buff = io.BytesIO(f.read(bytes))
                 stream += obspy.read(buff)
-        # taper each segment
-        stream = stream.taper(max_percentage=0.03)
-        return ChannelData(stream.merge(fill_value=0))
+        return ChannelData(stream)
 
     def get_inventory(self, timespan: DateTimeRange, station: Station) -> obspy.Inventory:
         return self.channel_catalog.get_inventory(timespan, station)