diff --git a/ivas_processing_scripts/processing/ivas.py b/ivas_processing_scripts/processing/ivas.py
index bab205a845c538cfb6591142539ceb064b5b5c1b..972f0c963afd78532b94e6823747e5e52e42d93b 100755
--- a/ivas_processing_scripts/processing/ivas.py
+++ b/ivas_processing_scripts/processing/ivas.py
@@ -37,7 +37,7 @@ from pathlib import Path
 from typing import Optional, Tuple, Union
 
 from ivas_processing_scripts.audiotools import audio
-from ivas_processing_scripts.audiotools.audiofile import parse_wave_header, read
+from ivas_processing_scripts.audiotools.audiofile import parse_wave_header, read, write
 from ivas_processing_scripts.audiotools.constants import IVAS_FRAME_LEN_MS
 from ivas_processing_scripts.audiotools.utils import truncate_trajectory_3dof
 from ivas_processing_scripts.audiotools.wrappers.dlyerr_2_errpat import dlyerr_2_errpat
@@ -133,6 +133,10 @@ class IVAS(Processing):
         bitstream_noerror = bitstream
         bitstream, voip = self.simulate_tx(in_file, bitstream, logger)
 
+        # change suffix to PCM for EVS decoding mode
+        if getattr(self, "use_evs_dec", None):
+            out_file = out_file.with_suffix(".pcm")
+
         # decode twice with and without bitstream errors
         self.dec(bitstream, out_file, voip=voip, logger=logger)
         if bitstream_noerror != bitstream and self.tx_condition:
@@ -141,6 +145,19 @@ class IVAS(Processing):
             )
             self.dec(bitstream_noerror, out_file_unprocessed, voip=False, logger=logger)
 
+        # convert PCM back to WAV in case of EVS decoding
+        if getattr(self, "use_evs_dec", None):
+            out_file_orig = out_file.with_suffix(".wav")
+            data, fs = read(out_file, self.out_fmt.num_channels, self.out_fs)
+            write(out_file_orig, data, fs)
+
+            if bitstream_noerror != bitstream and self.tx_condition:
+                out_file_unprocessed_orig = out_file_unprocessed.with_suffix(".wav")
+                data, fs = read(
+                    out_file_unprocessed, self.out_fmt.num_channels, self.out_fs
+                )
+                write(out_file_unprocessed_orig, data, fs)
+
     def enc(
         self,
         in_file: Path,
@@ -232,7 +249,7 @@ class IVAS(Processing):
             # done this way to ensure `output_format` is replaced in the correct position
             cmd.remove("-stereo_dmx_evs")
             cmd[cmd.index("-stereo")] = "-stereo_dmx_evs"
-            self.use_evs_dec = True # signal the decoder to use EVS commandline
+            self.use_evs_dec = True  # signal the decoder to use EVS commandline
 
         run(cmd, logger=logger)