diff --git a/README.md b/README.md
index 07f1e541071e2f0c2c4d3263b2b88a2c7511a38f..b6efaa975a8ee11ecf3be98d77ecef7d24b9c1ca 100755
--- a/README.md
+++ b/README.md
@@ -193,8 +193,8 @@ input:
 # preprocessing:
     ### Target format used in rendering from input format; default = null (no rendering)
     # fmt: "7_1_4"
-    ### Flag for application of 50Hz high-pass filter; default = false
-    # hp50: true
+    ### Define mask (HP50 or 20KBP) for input signal filtering; default = null
+    # mask: "HP50"
     ### Target sampling rate in Hz for resampling; default = null (no resampling)
     # fs: 16000
     ### Target loudness in LKFS; default = null (no loudness change applied)
diff --git a/examples/TEMPLATE.yml b/examples/TEMPLATE.yml
index 47f6a195247227dfb2cf0e07eba5722ad86c6e06..e29dcaef0b2448d6e9155ffaa696b38de0ff5f8d 100755
--- a/examples/TEMPLATE.yml
+++ b/examples/TEMPLATE.yml
@@ -64,8 +64,8 @@ input:
 # preprocessing:
     ### Target format used in rendering from input format; default = null (no rendering)
     # fmt: "7_1_4"
-    ### Flag for application of 50Hz high-pass filter; default = false
-    # hp50: true
+    ### Define mask (HP50 or 20KBP) for input signal filtering; default = null
+    # mask: "HP50"
     ### Target sampling rate in Hz for resampling; default = null (no resampling)
     # fs: 16000
     ### Target loudness in LKFS; default = null (no loudness change applied)
diff --git a/ivas_processing_scripts/audiotools/__init__.py b/ivas_processing_scripts/audiotools/__init__.py
index b7ceb7d19b300829365ca52fdd81c7403369be90..b4d7aa1955d49343c87daa498ad28c3c13f11d17 100755
--- a/ivas_processing_scripts/audiotools/__init__.py
+++ b/ivas_processing_scripts/audiotools/__init__.py
@@ -79,10 +79,11 @@ def add_processing_args(group, input=True):
         default=None,
     )
     group.add_argument(
-        f"-{ps}hp",
-        f"--{p}_hp50",
-        help="Apply 50 Hz high-pass filtering (default = %(default)s)",
-        action="store_true",
+        f"-{ps}mk",
+        f"--{p}_mask",
+        type=str,
+        help="Apply filtering with mask ((HP50, 20KBP or None; default = %(default)s)",
+        default=None,
     )
     group.add_argument(
         f"-{ps}w",
diff --git a/ivas_processing_scripts/audiotools/constants.py b/ivas_processing_scripts/audiotools/constants.py
index c3af9d29952ea4069cd51060e1d5e9c2191353a0..f9f020c80ba399d85dcf4ee7963641716a410c23 100755
--- a/ivas_processing_scripts/audiotools/constants.py
+++ b/ivas_processing_scripts/audiotools/constants.py
@@ -692,6 +692,7 @@ DELAY_COMPENSATION_FOR_FILTERING = {
         "down": 145,
     },
     "MSIN": 92,
+    "20KBP": 200,
     "LP1p5": 322,
     "LP35": 232,
     "LP7": 117,
diff --git a/ivas_processing_scripts/audiotools/convert/__init__.py b/ivas_processing_scripts/audiotools/convert/__init__.py
index 024faa47bb9511076cc7cc03ce8b56254f3b145f..9698dd4f56b0b8686485ef739296f0f7d6a3c3f3 100755
--- a/ivas_processing_scripts/audiotools/convert/__init__.py
+++ b/ivas_processing_scripts/audiotools/convert/__init__.py
@@ -43,8 +43,8 @@ from ivas_processing_scripts.audiotools.convert.scenebased import convert_sceneb
 from ivas_processing_scripts.audiotools.wrappers.bs1770 import loudness_norm
 from ivas_processing_scripts.audiotools.wrappers.esdru import esdru
 from ivas_processing_scripts.audiotools.wrappers.filter import (
-    hp50filter_itu,
     lpfilter_itu,
+    maskfilter_itu,
     resample_itu,
 )
 from ivas_processing_scripts.audiotools.wrappers.p50fbmnru import p50fbmnru
@@ -133,7 +133,7 @@ def convert(
     in_delay: Optional[float] = None,
     in_fs: Optional[int] = None,
     in_cutoff: Optional[int] = None,
-    in_hp50: Optional[bool] = None,
+    in_mask: Optional[str] = None,
     in_window: Optional[list] = None,
     in_loudness: Optional[float] = None,
     in_loudness_fmt: Optional[str] = None,
@@ -142,7 +142,7 @@ def convert(
     out_delay: Optional[float] = None,
     out_fs: Optional[int] = None,
     out_cutoff: Optional[int] = None,
-    out_hp50: Optional[bool] = None,
+    out_mask: Optional[str] = None,
     out_window: Optional[list] = None,
     out_loudness: Optional[float] = None,
     out_loudness_fmt: Optional[str] = None,
@@ -162,7 +162,7 @@ def convert(
         delay=in_delay,
         fs=in_fs,
         fc=in_cutoff,
-        hp50=in_hp50,
+        mask=in_mask,
         window=in_window,
         loudness=in_loudness,
         loudness_fmt=in_loudness_fmt,
@@ -180,7 +180,7 @@ def convert(
         delay=out_delay,
         fs=out_fs,
         fc=out_cutoff,
-        hp50=out_hp50,
+        mask=out_mask,
         window=out_window,
         loudness=out_loudness,
         loudness_fmt=out_loudness_fmt,
@@ -198,7 +198,7 @@ def process_audio(
     delay: Optional[float] = None,
     fs: Optional[int] = None,
     fc: Optional[int] = None,
-    hp50: Optional[bool] = False,
+    mask: Optional[str] = None,
     window: Optional[float] = None,
     loudness: Optional[float] = None,
     loudness_fmt: Optional[str] = None,
@@ -232,11 +232,11 @@ def process_audio(
             logger.debug(f"Windowing audio with {window} ms Hann window")
         x.audio = audioarray.window(x.audio, x.fs, window)
 
-    """high-pass (50 Hz) filtering"""
-    if hp50:
+    """mask filtering"""
+    if mask is not None:
         if logger:
-            logger.debug("Applying 50 Hz high-pass filter using ITU STL filter")
-        x.audio = hp50filter_itu(x)
+            logger.debug("Applying mask filter using ITU STL filter")
+        x.audio = maskfilter_itu(x, mask)
 
     """resampling"""
     if x.fs != fs:
diff --git a/ivas_processing_scripts/audiotools/wrappers/filter.py b/ivas_processing_scripts/audiotools/wrappers/filter.py
index 9be957586c95937c73c71523d9395345e0d27daf..426a0f2c0598598943a857a105b72fdc102d55e5 100755
--- a/ivas_processing_scripts/audiotools/wrappers/filter.py
+++ b/ivas_processing_scripts/audiotools/wrappers/filter.py
@@ -291,6 +291,88 @@ def hp50filter_itu(
     return y
 
 
+def kbp20filter_itu(
+    x: Audio,
+) -> np.ndarray:
+    """
+    20Hz to 20kHz bandpass filter for multi-channel audio array
+
+    Parameters
+    ----------
+    x: Audio
+        Input audio
+
+    Returns
+    -------
+    y: np.ndarray
+        Output band-pass filtered array
+    """
+
+    # set filter type and check if sampling rate is supported
+    old_fs = None
+    tmp = copy(x)
+    if x.fs == 48000:
+        flt_type = "20KBP"
+    else:
+        # resample if samplingrate is not supported
+        warn(
+            f"Filter type 20KBP only supported for 48kHz samlingrate, not for {x.fs}Hz -> resampling"
+        )
+        flt_type = "20KBP"
+        old_fs = x.fs
+        tmp.audio = resample_itu(tmp, 48000)
+        tmp.fs = 48000
+
+    # don't apply band-pass filtering to LFE channel
+    if isinstance(x, ChannelBasedAudio):
+        skip_channel = x.lfe_index
+    else:
+        skip_channel = None
+
+    # apply filter
+    y = filter_itu(tmp, flt_type=flt_type, skip_channel=skip_channel)
+
+    # delay compensation
+    y = delay_compensation(y, flt_type=flt_type, fs=tmp.fs)
+
+    # reverse resampling
+    if old_fs:
+        tmp.audio = y
+        y = resample_itu(tmp, old_fs)
+
+    return y
+
+
+def maskfilter_itu(
+    x: Audio,
+    mask: str,
+) -> np.ndarray:
+    """
+    Mask filter for multi-channel audio array
+
+    Parameters
+    ----------
+    x: Audio
+        Input audio
+    mask: str
+        Name of mask to be applied
+
+    Returns
+    -------
+    y: np.ndarray
+        Output filtered array
+    """
+
+    if mask == "HP50":
+        y = hp50filter_itu(x)
+    elif mask == "20KBP":
+        y = kbp20filter_itu(x)
+    else:
+        raise ValueError("Invalid mask filter defined")
+
+    return y
+
+
 def resample_itu(
     x: Audio,
     fs_new: int,
diff --git a/ivas_processing_scripts/audiotools/wrappers/gen_patt.py b/ivas_processing_scripts/audiotools/wrappers/gen_patt.py
index f801b07b9e3edbab53831f1606477e7d06e7c764..d8737ef408e0e48690363aefc019b5cf34c8ee3c 100644
--- a/ivas_processing_scripts/audiotools/wrappers/gen_patt.py
+++ b/ivas_processing_scripts/audiotools/wrappers/gen_patt.py
@@ -138,7 +138,7 @@ def create_error_pattern(
         gen_patt(100, "ep.g192", 5, working_dir=tmp_dir_test)
         if not tmp_sta_file_test.exists():
             raise RuntimeError(
-                "Used version of gen-patt was detected to be faulty (unable to write \"sta\"-file). See bin/README.md for details."
+                'Used version of gen-patt was detected to be faulty (unable to write "sta"-file). See bin/README.md for details.'
             )
 
     with TemporaryDirectory() as tmp_dir:
diff --git a/ivas_processing_scripts/constants.py b/ivas_processing_scripts/constants.py
index c273101601f7b1f8ad1c158cf2eda8bd05ed2d81..fbadd5238c567fa4b82294dffa3f1e40ce137fe1 100755
--- a/ivas_processing_scripts/constants.py
+++ b/ivas_processing_scripts/constants.py
@@ -63,7 +63,7 @@ DEFAULT_CONFIG = {
     "metadata_path": None,
     # postprocessing
     "postprocessing": {
-        "hp50": False,
+        "mask": None,
         "limit": False,
     },
 }
diff --git a/ivas_processing_scripts/processing/chains.py b/ivas_processing_scripts/processing/chains.py
index 027ac4472b2e6310a4a8fca6ceaed5893a20f6ec..64945dcee2fe26a27cd15292c39d2af43fb39a7e 100755
--- a/ivas_processing_scripts/processing/chains.py
+++ b/ivas_processing_scripts/processing/chains.py
@@ -115,7 +115,7 @@ def get_preprocessing(cfg: TestConfig) -> dict:
                 "in_window": pre_cfg.get("window"),
                 "in_loudness": pre_cfg.get("loudness"),
                 "in_loudness_fmt": pre_cfg.get("loudness_fmt"),
-                "in_hp50": pre_cfg.get("hp50", False),
+                "in_mask": pre_cfg.get("mask", None),
                 "multiprocessing": cfg.multiprocessing,
             }
         )
@@ -163,7 +163,7 @@ def get_preprocessing_2(cfg: TestConfig) -> dict:
                 "preamble": pre2_cfg.get("preamble", 0),
                 "pad_noise_preamble": pre2_cfg.get("preamble_noise", False),
                 "background_noise": background,
-                "in_hp50": pre2_cfg.get("hp50", False),
+                "in_mask": pre2_cfg.get("mask", None),
                 "multiprocessing": cfg.multiprocessing,
             }
         )
diff --git a/ivas_processing_scripts/processing/processing.py b/ivas_processing_scripts/processing/processing.py
index 0d2097fa04d11555c4ad0866f9dcd223a2420674..649aa882f328799d58fa7052af4e299272ec556a 100755
--- a/ivas_processing_scripts/processing/processing.py
+++ b/ivas_processing_scripts/processing/processing.py
@@ -477,7 +477,7 @@ def preprocess_background_noise(cfg):
         output=output_audio,
         in_fs=input_audio.fs,
         out_fs=out_fs,
-        in_hp50=cfg.pre.in_hp50,
+        in_mask=cfg.pre.in_mask,
     )
 
     # save result in cfg
diff --git a/tests/data/test_ISM.yml b/tests/data/test_ISM.yml
index 6be2b37766db1dade33d22d0fa6fa8176c023405..8543d18031bf35f92f8f99028356ec8d3386a257 100644
--- a/tests/data/test_ISM.yml
+++ b/tests/data/test_ISM.yml
@@ -71,6 +71,8 @@ input:
 preprocessing:
     ### Target format used in rendering from input format; default = null (no rendering)
     # fmt: "7_1_4"
+    ### Define mask (HP50 or 20KBP) for input signal filtering; default = null
+    # mask: "HP50"
     ### Target sampling rate in Hz for resampling; default = null (no resampling)
     # fs: 16000
     ### Target loudness in LKFS; default = null (no loudness change applied)
diff --git a/tests/data/test_MC.yml b/tests/data/test_MC.yml
index 81cb34467afbcc1a7e335aa6868efedb8bd9a38a..414c2cdf5a65f6db621595330e1e74b1b5e6558b 100644
--- a/tests/data/test_MC.yml
+++ b/tests/data/test_MC.yml
@@ -68,6 +68,8 @@ input:
 preprocessing:
     ### Target format used in rendering from input format; default = null (no rendering)
     fmt: "7_1_4"
+    ### Define mask (HP50 or 20KBP) for input signal filtering; default = null
+    # mask: "HP50"
     ### Target sampling rate in Hz for resampling; default = null (no resampling)
     fs: 16000
     ### Target loudness in LKFS; default = null (no loudness change applied)
diff --git a/tests/data/test_SBA.yml b/tests/data/test_SBA.yml
index da243a2142c283d023bf7320b0cb2c7101bb5b3a..2fc2adfe6b46f78ec589b9b8b2b86e422f16415c 100644
--- a/tests/data/test_SBA.yml
+++ b/tests/data/test_SBA.yml
@@ -65,11 +65,11 @@ input:
 ################################################
 ### Pre-processing step performed prior to core processing for all conditions
 ### If not defined, preprocessing step is skipped
-# preprocessing:
+preprocessing:
     ### Target format used in rendering from input format; default = null (no rendering)
     # fmt: "7_1_4"
-    ### Flag for application of 50Hz high-pass filter; default = false
-    hp50: true
+    ### Define mask (HP50 or 20KBP) for input signal filtering; default = null
+    mask: "HP50"
     ### Target sampling rate in Hz for resampling; default = null (no resampling)
     # fs: 16000
     ### Target loudness in LKFS; default = null (no loudness change applied)