diff --git a/lasp/filter/filterbank_design.py b/lasp/filter/filterbank_design.py
index 2541480..9cdd62c 100644
--- a/lasp/filter/filterbank_design.py
+++ b/lasp/filter/filterbank_design.py
@@ -585,6 +585,8 @@ class ThirdOctaveBankDesigner(FilterBankDesigner):
         # Idea: correct for frequency warping:
         if np.isclose(self.fs, 48000):
             return 1.00
+        elif np.isclose(self.fs, 32768):
+            return 1.00
         else:
             raise ValueError('Unimplemented sampling frequency for SOS'
                              'filter design')
@@ -594,6 +596,8 @@ class ThirdOctaveBankDesigner(FilterBankDesigner):
         the filter."""
         if np.isclose(self.fs, 48000):
             return 1
+        elif np.isclose(self.fs, 32768):
+            return 1.00
         else:
             raise ValueError('Unimplemented sampling frequency for SOS'
                              'filter design')
diff --git a/lasp/lasp_avstream.py b/lasp/lasp_avstream.py
index 5fd21a1..08ba3c1 100644
--- a/lasp/lasp_avstream.py
+++ b/lasp/lasp_avstream.py
@@ -166,14 +166,14 @@ class AvStream:
                     if len(self._callbacks[AvType.audio_output]) == 0:
                         outdata[:, :] = 0
                     for cb in self._callbacks[AvType.audio_output]:
-                            cb(indata, outdata, self._aframectr())
+                        cb(indata, outdata, self._aframectr())
                 except Exception as e:
                     print(e)
                     return 2
             if indata is not None:
                 try:
                     for cb in self._callbacks[AvType.audio_input]:
-                            cb(indata, outdata, self._aframectr())
+                        cb(indata, outdata, self._aframectr())
                 except Exception as e:
                     print(e)
                     return 1