diff --git a/test/torchaudio_unittest/sox_io_backend/load_test.py b/test/torchaudio_unittest/sox_io_backend/load_test.py
index 5428d5dbb1e..c5be324c83b 100644
--- a/test/torchaudio_unittest/sox_io_backend/load_test.py
+++ b/test/torchaudio_unittest/sox_io_backend/load_test.py
@@ -469,7 +469,10 @@ def test_bytesio(self, ext, compression):
         ('amb', None),
     ])
     def test_bytesio_clogged(self, ext, compression):
-        """Loading audio via BytesIO object returns the same result as via file path."""
+        """Loading audio via clogged file object returns the same result as via file path.
+
+        This test case validates the case where fileobject returns shorter bytes than requeted.
+        """
         sample_rate = 16000
         format_ = ext if ext in ['mp3'] else None
         path = self.get_temp_path(f'test.{ext}')
@@ -498,14 +501,15 @@ def test_bytesio_clogged(self, ext, compression):
         ('amb', None),
     ])
     def test_bytesio_tiny(self, ext, compression):
-        """Loading audio via BytesIO object returns the same result as via file path."""
+        """Loading very small audio via file object returns the same result as via file path.
+        """
         sample_rate = 16000
         format_ = ext if ext in ['mp3'] else None
         path = self.get_temp_path(f'test.{ext}')
 
         sox_utils.gen_audio_file(
             path, sample_rate, num_channels=2,
-            compression=compression, duration=1 / 1600)
+            compression=compression, duration=1 / 16000)
         expected, _ = sox_io_backend.load(path)
 
         with open(path, 'rb') as file_:
diff --git a/torchaudio/csrc/sox/effects_chain.cpp b/torchaudio/csrc/sox/effects_chain.cpp
index 769c6c57e7f..b4c15755419 100644
--- a/torchaudio/csrc/sox/effects_chain.cpp
+++ b/torchaudio/csrc/sox/effects_chain.cpp
@@ -323,8 +323,8 @@ int fileobj_input_drain(sox_effect_t* effp, sox_sample_t* obuf, size_t* osamp) {
   //     |<-------consumed------>|<---remaining--->|
   //     |***********************|-----------------|
   //                             ^ ftell
-  //                           
-  // After:                    
+  //
+  // After:
   //
   //     |<-offset->|<---remaining--->|<-new data->|
   //     |**********|-----------------|++++++++++++|