diff --git a/scripts/pyivastest/IvasModeRunner.py b/scripts/pyivastest/IvasModeRunner.py
index 936c72106c1520e27f1e60583e7bba258772feec..84616a93315e20ed6797282471d53f0a93950bdf 100755
--- a/scripts/pyivastest/IvasModeRunner.py
+++ b/scripts/pyivastest/IvasModeRunner.py
@@ -602,7 +602,8 @@ class IvasModeRunner(IvasModeCollector.IvasModeCollector):
                         # read signal and sampling rate from file
                         sig, fs = af.readfile(in_file_name_transformed)
 
-                        out_len = None
+                        out_fs = int(sample_rate_in) * 1000
+
                         # check if the given length with -U is longer than the file itself and avoid cutting then
                         if do_limit_duration:
                             cut_len_samples = int(float(self.max_duration) * fs)
@@ -621,9 +622,8 @@ class IvasModeRunner(IvasModeCollector.IvasModeCollector):
 
                         pcm_name_transformed = self.transform_path(pcm_name)
 
-                        out_fs = int(sample_rate_in) * 1000
-                        pcm_log.write("Resampling to {} with length: {}".format(out_fs, out_len))
-                        af.convertfile(resamp_in_path, pcm_name_transformed, out_fs=out_fs, out_len_samples=out_len)
+                        pcm_log.write("Resampling to {}".format(out_fs))
+                        af.convertfile(resamp_in_path, pcm_name_transformed, in_fs=fs, out_fs=out_fs)
 
                         in_config = config["cmd"]["in_config"].upper()
                         chn_arg = []