refactor: rename QoS configuration from "Default" to "Robust" and add QoS preset selection

- Rename `AuracastQosDefault` class to `AuracastQosRobust` to better reflect its characteristics (4 retransmissions)
- Replace RTN (retransmission number) dropdown with QoS preset selector offering "Fast" (2 RTN) and "Robust" (4 RTN) options
- Update frontend and backend to use QoS preset mapping instead of manual QoS config construction
- Add `_resolve_qos_preset_name()` helper function to convert QoS config

src/auracast/auracast_config.py

@@ -7,7 +7,7 @@ class AuracastQoSConfig(BaseModel):
     number_of_retransmissions: int
     max_transport_latency_ms: int
 
-class AuracastQosDefault(AuracastQoSConfig):
+class AuracastQosRobust(AuracastQoSConfig):
     iso_int_multiple_10ms: int = 1
     number_of_retransmissions:int = 4 #4
     max_transport_latency_ms:int = 43 #varies from the default value in bumble (was 65)
@@ -19,7 +19,7 @@ class AuracastQosFast(AuracastQoSConfig):
 
 
 class AuracastGlobalConfig(BaseModel):
-    qos_config: AuracastQoSConfig =  AuracastQosDefault()
+    qos_config: AuracastQoSConfig =  AuracastQosRobust()
     debug: bool = False
     device_name: str = 'Auracaster'
     transport: str = ''

src/auracast/multicast.py

@@ -918,7 +918,7 @@ if __name__ == "__main__":
     )
 
     # TODO: How can we use other iso interval than 10ms ?(medium or low rel) ? - nrf53audio receiver repports I2S tx underrun
-    config.qos_config=auracast_config.AuracastQosDefault()
+    config.qos_config=auracast_config.AuracastQosRobust()
 
     #config.transport='serial:/dev/serial/by-id/usb-ZEPHYR_Zephyr_HCI_UART_sample_81BD14B8D71B5662-if00,1000000,rtscts' # transport for nrf52 dongle
     #config.transport='serial:/dev/serial/by-id/usb-SEGGER_J-Link_001050076061-if02,1000000,rtscts' # transport for nrf53dk

src/auracast/multicast_control.py

@@ -140,7 +140,7 @@ async def main():
     os.chdir(os.path.dirname(__file__))
 
     global_conf = auracast_config.AuracastGlobalConfig(
-        qos_config=auracast_config.AuracastQosDefault()
+        qos_config=auracast_config.AuracastQosRobust()
     )
     #global_conf.transport='serial:/dev/serial/by-id/usb-SEGGER_J-Link_001057705357-if02,1000000,rtscts' # transport for nrf54l15dk
     global_conf.transport='serial:/dev/serial/by-id/usb-ZEPHYR_Zephyr_HCI_UART_sample_81BD14B8D71B5662-if00,115200,rtscts' #nrf52dongle hci_uart usb cdc

src/auracast/multicast_script.py

@@ -159,7 +159,7 @@ if __name__ == "__main__":
         ],
         immediate_rendering=False,
         presentation_delay_us=40000,
-        qos_config=auracast_config.AuracastQosDefault(),
+        qos_config=auracast_config.AuracastQosRobust(),
         auracast_sampling_rate_hz = LC3_SRATE,
         octets_per_frame = OCTETS_PER_FRAME,
         transport=TRANSPORT1,

src/auracast/server/multicast_frontend.py

@@ -90,6 +90,11 @@ QUALITY_MAP = {
     "Fair (16kHz)": {"rate": 16000, "octets": 40},
 }
 
+QOS_PRESET_MAP = {
+    "Fast": auracast_config.AuracastQosFast(),
+    "Robust": auracast_config.AuracastQosRobust(),
+}
+
 # Try loading persisted settings from backend
 saved_settings = {}
 try:
@@ -215,7 +220,7 @@ if audio_mode == "Demo":
         type=("password"),
         help="Optional: Set a broadcast code to protect your stream. Leave empty for an open (uncoded) broadcast."
     )
-    col_flags1, col_flags2, col_pdelay, col_rtn = st.columns([1, 1, 0.7, 0.6], gap="small", vertical_alignment="center")
+    col_flags1, col_flags2, col_pdelay, col_qos = st.columns([1, 1, 0.7, 0.6], gap="small", vertical_alignment="center")
     with col_flags1:
         assisted_listening = st.checkbox(
             "Assistive listening",
@@ -237,13 +242,13 @@ if audio_mode == "Demo":
             min_value=10, max_value=200, step=5, value=default_pdelay_ms,
             help="Delay between capture and presentation for receivers."
         )
-    default_rtn = int(saved_settings.get('rtn', 4) or 4)
+    with col_qos:
-    with col_rtn:
+        qos_options = list(QOS_PRESET_MAP.keys())
-        rtn_options = [1,2,3,4]
+        saved_qos = saved_settings.get('qos_preset', 'Fast')
-        default_rtn_clamped = min(4, max(1, default_rtn))
+        default_qos_idx = qos_options.index(saved_qos) if saved_qos in qos_options else 0
-        rtn = st.selectbox(
+        qos_preset = st.selectbox(
-            "RTN", options=rtn_options, index=rtn_options.index(default_rtn_clamped),
+            "QoS", options=qos_options, index=default_qos_idx,
-            help="Number of ISO retransmissions (higher improves robustness at cost of airtime)."
+            help="Fast: 2 retransmissions, lower latency. Robust: 4 retransmissions, better reliability."
         )
     #st.info(f"Demo mode selected: {demo_selected} (Streams: {demo_stream_map[demo_selected]['streams']}, Rate: {demo_stream_map[demo_selected]['rate']} Hz)")
     # Start/Stop buttons for demo mode
@@ -295,11 +300,7 @@ if audio_mode == "Demo":
             assisted_listening_stream=assisted_listening,
             immediate_rendering=immediate_rendering,
             presentation_delay_us=int(presentation_delay_ms * 1000),
-            qos_config=auracast_config.AuracastQoSConfig(
+            qos_config=QOS_PRESET_MAP[qos_preset],
-                iso_int_multiple_10ms=1,
-                number_of_retransmissions=int(rtn),
-                max_transport_latency_ms=int(rtn)*10 + 3,
-            ),
             bigs=bigs1
         )
         config2 = None
@@ -311,11 +312,7 @@ if audio_mode == "Demo":
                 assisted_listening_stream=assisted_listening,
                 immediate_rendering=immediate_rendering,
                 presentation_delay_us=int(presentation_delay_ms * 1000),
-                qos_config=auracast_config.AuracastQoSConfig(
+                qos_config=QOS_PRESET_MAP[qos_preset],
-                    iso_int_multiple_10ms=1,
-                    number_of_retransmissions=int(rtn),
-                    max_transport_latency_ms=int(rtn)*10 + 3,
-                ),
                 bigs=bigs2
             )
         # Call /init and /init2
@@ -385,7 +382,7 @@ else:
             help="Optional: Set a broadcast code for Radio 1."
         )
 
-        col_r1_flags1, col_r1_flags2, col_r1_pdelay, col_r1_rtn = st.columns([1, 1, 0.7, 0.6], gap="small")
+        col_r1_flags1, col_r1_flags2, col_r1_pdelay, col_r1_qos = st.columns([1, 1, 0.7, 0.6], gap="small")
         with col_r1_flags1:
             assisted_listening1 = st.checkbox(
                 "Assistive listening (R1)",
@@ -406,13 +403,13 @@ else:
                 min_value=10, max_value=200, step=5, value=default_pdelay_ms,
                 help="Delay between capture and presentation for Radio 1."
             )
-        default_rtn = int(saved_settings.get('rtn', 4) or 4)
+        with col_r1_qos:
-        with col_r1_rtn:
+            qos_options = list(QOS_PRESET_MAP.keys())
-            rtn_options = [1,2,3,4]
+            saved_qos = saved_settings.get('qos_preset', 'Fast')
-            default_rtn_clamped = min(4, max(1, default_rtn))
+            default_qos_idx = qos_options.index(saved_qos) if saved_qos in qos_options else 0
-            rtn1 = st.selectbox(
+            qos_preset1 = st.selectbox(
-                "RTN (R1)", options=rtn_options, index=rtn_options.index(default_rtn_clamped),
+                "QoS (R1)", options=qos_options, index=default_qos_idx,
-                help="Number of ISO retransmissions for Radio 1."
+                help="Fast: 2 retransmissions, lower latency. Robust: 4 retransmissions, better reliability."
             )
 
         col_r1_name, col_r1_lang = st.columns([2, 1])
@@ -507,7 +504,7 @@ else:
                 help="Optional: Set a broadcast code for Radio 2."
             )
 
-            col_r2_flags1, col_r2_flags2, col_r2_pdelay, col_r2_rtn = st.columns([1, 1, 0.7, 0.6], gap="small")
+            col_r2_flags1, col_r2_flags2, col_r2_pdelay, col_r2_qos = st.columns([1, 1, 0.7, 0.6], gap="small")
             with col_r2_flags1:
                 assisted_listening2 = st.checkbox(
                     "Assistive listening (R2)",
@@ -526,10 +523,12 @@ else:
                     min_value=10, max_value=200, step=5, value=default_pdelay_ms,
                     help="Delay between capture and presentation for Radio 2."
                 )
-            with col_r2_rtn:
+            with col_r2_qos:
-                rtn2 = st.selectbox(
+                saved_qos2 = saved_settings.get('secondary', {}).get('qos_preset', 'Fast')
-                    "RTN (R2)", options=rtn_options, index=rtn_options.index(default_rtn_clamped),
+                default_qos_idx2 = qos_options.index(saved_qos2) if saved_qos2 in qos_options else 0
-                    help="Number of ISO retransmissions for Radio 2."
+                qos_preset2 = st.selectbox(
+                    "QoS (R2)", options=qos_options, index=default_qos_idx2,
+                    help="Fast: 2 retransmissions, lower latency. Robust: 4 retransmissions, better reliability."
                 )
 
             col_r2_name, col_r2_lang = st.columns([2, 1])
@@ -582,7 +581,7 @@ else:
                 'assisted_listening': assisted_listening2,
                 'immediate_rendering': immediate_rendering2,
                 'presentation_delay_ms': presentation_delay_ms2,
-                'rtn': rtn2,
+                'qos_preset': qos_preset2,
             }
 
         radio1_cfg = {
@@ -596,7 +595,7 @@ else:
             'assisted_listening': assisted_listening1,
             'immediate_rendering': immediate_rendering1,
             'presentation_delay_ms': presentation_delay_ms1,
-            'rtn': rtn1,
+            'qos_preset': qos_preset1,
         }
 
     else:
@@ -617,7 +616,7 @@ else:
             help="Optional: Set a broadcast code to protect your stream. Leave empty for an open (uncoded) broadcast."
         )
 
-        col_flags1, col_flags2, col_pdelay, col_rtn = st.columns([1, 1, 0.7, 0.6], gap="small")
+        col_flags1, col_flags2, col_pdelay, col_qos = st.columns([1, 1, 0.7, 0.6], gap="small")
         with col_flags1:
             assisted_listening = st.checkbox(
                 "Assistive listening",
@@ -638,13 +637,13 @@ else:
                 min_value=10, max_value=200, step=5, value=default_pdelay_ms,
                 help="Delay between capture and presentation for receivers."
             )
-        default_rtn = int(saved_settings.get('rtn', 4) or 4)
+        with col_qos:
-        with col_rtn:
+            qos_options = list(QOS_PRESET_MAP.keys())
-            rtn_options = [1,2,3,4]
+            saved_qos = saved_settings.get('qos_preset', 'Fast')
-            default_rtn_clamped = min(4, max(1, default_rtn))
+            default_qos_idx = qos_options.index(saved_qos) if saved_qos in qos_options else 0
-            rtn = st.selectbox(
+            qos_preset = st.selectbox(
-                "RTN", options=rtn_options, index=rtn_options.index(default_rtn_clamped),
+                "QoS", options=qos_options, index=default_qos_idx,
-                help="Number of ISO retransmissions (higher improves robustness at cost of airtime)."
+                help="Fast: 2 retransmissions, lower latency. Robust: 4 retransmissions, better reliability."
             )
 
         stream_name = st.text_input(
@@ -768,11 +767,7 @@ else:
                     assisted_listening_stream=bool(cfg['assisted_listening']),
                     immediate_rendering=bool(cfg['immediate_rendering']),
                     presentation_delay_us=int(cfg['presentation_delay_ms'] * 1000),
-                    qos_config=auracast_config.AuracastQoSConfig(
+                    qos_config=QOS_PRESET_MAP[cfg['qos_preset']],
-                        iso_int_multiple_10ms=1,
-                        number_of_retransmissions=int(cfg['rtn']),
-                        max_transport_latency_ms=int(cfg['rtn']) * 10 + 3,
-                    ),
                     bigs=[
                         auracast_config.AuracastBigConfig(
                             id=cfg.get('id', 123456),
@@ -820,11 +815,7 @@ else:
                 assisted_listening_stream=assisted_listening,
                 immediate_rendering=immediate_rendering,
                 presentation_delay_us=int(presentation_delay_ms * 1000),
-                qos_config=auracast_config.AuracastQoSConfig(
+                qos_config=QOS_PRESET_MAP[qos_preset],
-                    iso_int_multiple_10ms=1,
-                    number_of_retransmissions=int(rtn),
-                    max_transport_latency_ms=int(rtn)*10 + 3,
-                ),
                 bigs=[
                     auracast_config.AuracastBigConfig(
                         code=(stream_passwort.strip() or None),

src/auracast/server/multicast_server.py

@@ -41,6 +41,12 @@ _DEFAULT_BIG = auracast_config.AuracastBigConfig()
 DEFAULT_BIG_ID = _DEFAULT_BIG.id
 DEFAULT_RANDOM_ADDRESS = _DEFAULT_BIG.random_address
 
+# QoS presets mapping - must match frontend
+QOS_PRESET_MAP = {
+    "Fast": auracast_config.AuracastQosFast(),
+    "Robust": auracast_config.AuracastQosRobust(),
+}
+
 # In-memory caches to avoid disk I/O on hot paths like /status
 SETTINGS_CACHE1: dict = {}
 SETTINGS_CACHE2: dict = {}
@@ -299,6 +305,14 @@ async def _stream_lc3(audio_data: dict[str, str], bigs_template: list) -> None:
     multicaster1.big_conf = bigs_template
     await multicaster1.start_streaming()
 
+def _resolve_qos_preset_name(qos_config) -> str:
+    """Resolve qos_config to preset name based on retransmission count."""
+    if qos_config is None:
+        return "Fast"
+    rtn = getattr(qos_config, 'number_of_retransmissions', 2)
+    # Fast has 2 retransmissions, Robust has 4
+    return "Robust" if rtn >= 4 else "Fast"
+
 async def init_radio(transport: str, conf: auracast_config.AuracastConfigGroup, current_mc: multicast_control.Multicaster | None):
     try:
         log.info('Initializing multicaster with transport %s and config:\n %s', transport, conf.model_dump_json(indent=2))
@@ -373,7 +387,7 @@ async def init_radio(transport: str, conf: auracast_config.AuracastConfigGroup,
             'auracast_sampling_rate_hz': conf.auracast_sampling_rate_hz,
             'octets_per_frame': conf.octets_per_frame,
             'presentation_delay_us': getattr(conf, 'presentation_delay_us', None),
-            'rtn': getattr(getattr(conf, 'qos_config', None), 'number_of_retransmissions', None),
+            'qos_preset': _resolve_qos_preset_name(conf.qos_config),
             'immediate_rendering': getattr(conf, 'immediate_rendering', False),
             'assisted_listening_stream': getattr(conf, 'assisted_listening_stream', False),
             'stream_password': (conf.bigs[0].code if conf.bigs and getattr(conf.bigs[0], 'code', None) else None),
@@ -490,7 +504,7 @@ async def _autostart_from_settings():
         rate = settings.get('auracast_sampling_rate_hz')
         octets = settings.get('octets_per_frame')
         pres_delay = settings.get('presentation_delay_us')
-        saved_rtn = settings.get('rtn')
+        saved_qos_preset = settings.get('qos_preset', 'Fast')
         immediate_rendering = settings.get('immediate_rendering', False)
         assisted_listening_stream = settings.get('assisted_listening_stream', False)
         channel_names = settings.get('channel_names') or ["Broadcast0"]
@@ -503,13 +517,13 @@ async def _autostart_from_settings():
         previously_streaming = bool(settings.get('is_streaming'))
 
         log.info(
-            "[AUTOSTART][PRIMARY] loaded settings: previously_streaming=%s audio_mode=%s rate=%s octets=%s pres_delay=%s rtn=%s immediate_rendering=%s assisted_listening_stream=%s demo_sources=%s",
+            "[AUTOSTART][PRIMARY] loaded settings: previously_streaming=%s audio_mode=%s rate=%s octets=%s pres_delay=%s qos_preset=%s immediate_rendering=%s assisted_listening_stream=%s demo_sources=%s",
             previously_streaming,
             audio_mode,
             rate,
             octets,
             pres_delay,
-            saved_rtn,
+            saved_qos_preset,
             immediate_rendering,
             assisted_listening_stream,
             (settings.get('demo_sources') or []),
@@ -563,11 +577,7 @@ async def _autostart_from_settings():
                 presentation_delay_us=pres_delay if pres_delay is not None else 40000,
                 bigs=bigs,
             )
-            conf.qos_config = auracast_config.AuracastQoSConfig(
+            conf.qos_config = QOS_PRESET_MAP.get(saved_qos_preset, QOS_PRESET_MAP["Fast"])
-                iso_int_multiple_10ms=1,
-                number_of_retransmissions=int(saved_rtn) if saved_rtn is not None else 1,
-                max_transport_latency_ms=(int(saved_rtn) * 10 + 3) if saved_rtn is not None else 13,
-            )
             log.info("[AUTOSTART][PRIMARY] Scheduling demo init_radio in 2s")
             await asyncio.sleep(2)
             async with _stream_lock:
@@ -631,11 +641,7 @@ async def _autostart_from_settings():
                     presentation_delay_us=pres_delay if pres_delay is not None else 40000,
                     bigs=bigs,
                 )
-                conf.qos_config = auracast_config.AuracastQoSConfig(
+                conf.qos_config = QOS_PRESET_MAP.get(saved_qos_preset, QOS_PRESET_MAP["Fast"])
-                    iso_int_multiple_10ms=1,
-                    number_of_retransmissions=int(saved_rtn),
-                    max_transport_latency_ms=int(saved_rtn) * 10 + 3,
-                )
                 log.info("[AUTOSTART][PRIMARY] Scheduling device init_radio in 2s")
                 await asyncio.sleep(2)
                 async with _stream_lock:
@@ -656,7 +662,7 @@ async def _autostart_from_settings():
         rate = settings.get('auracast_sampling_rate_hz')
         octets = settings.get('octets_per_frame')
         pres_delay = settings.get('presentation_delay_us')
-        saved_rtn = settings.get('rtn')
+        saved_qos_preset = settings.get('qos_preset', 'Fast')
         immediate_rendering = settings.get('immediate_rendering', False)
         assisted_listening_stream = settings.get('assisted_listening_stream', False)
         channel_names = settings.get('channel_names') or ["Broadcast0"]
@@ -668,13 +674,13 @@ async def _autostart_from_settings():
         original_ts = settings.get('timestamp')
         previously_streaming = bool(settings.get('is_streaming'))
         log.info(
-            "[AUTOSTART][SECONDARY] loaded settings: previously_streaming=%s audio_mode=%s rate=%s octets=%s pres_delay=%s rtn=%s immediate_rendering=%s assisted_listening_stream=%s demo_sources=%s",
+            "[AUTOSTART][SECONDARY] loaded settings: previously_streaming=%s audio_mode=%s rate=%s octets=%s pres_delay=%s qos_preset=%s immediate_rendering=%s assisted_listening_stream=%s demo_sources=%s",
             previously_streaming,
             audio_mode,
             rate,
             octets,
             pres_delay,
-            saved_rtn,
+            saved_qos_preset,
             immediate_rendering,
             assisted_listening_stream,
             (settings.get('demo_sources') or []),
@@ -718,11 +724,7 @@ async def _autostart_from_settings():
                 presentation_delay_us=pres_delay if pres_delay is not None else 40000,
                 bigs=bigs,
             )
-            conf.qos_config = auracast_config.AuracastQoSConfig(
+            conf.qos_config = QOS_PRESET_MAP.get(saved_qos_preset, QOS_PRESET_MAP["Fast"])
-                iso_int_multiple_10ms=1,
-                number_of_retransmissions=int(saved_rtn) if saved_rtn is not None else 1,
-                max_transport_latency_ms=(int(saved_rtn) * 10 + 3) if saved_rtn is not None else 13,
-            )
             log.info("[AUTOSTART][SECONDARY] Scheduling demo init_radio in 2s")
             await asyncio.sleep(2)
             async with _stream_lock:
@@ -789,11 +791,7 @@ async def _autostart_from_settings():
                     presentation_delay_us=pres_delay if pres_delay is not None else 40000,
                     bigs=bigs,
                 )
-                conf.qos_config = auracast_config.AuracastQoSConfig(
+                conf.qos_config = QOS_PRESET_MAP.get(saved_qos_preset, QOS_PRESET_MAP["Fast"])
-                    iso_int_multiple_10ms=1,
-                    number_of_retransmissions=int(saved_rtn),
-                    max_transport_latency_ms=int(saved_rtn) * 10 + 3,
-                )
                 log.info("[AUTOSTART][SECONDARY] Scheduling device init_radio in 2s")
                 await asyncio.sleep(2)
                 async with _stream_lock:

src/qualification/BAP/test_bap_bsrc_scc_bv20c.py

@@ -7,7 +7,7 @@ Configuration: 16kHz, 40 octets/frame, stereo (2 BISes), QoS _2 variant
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -21,7 +21,7 @@ if __name__ == "__main__":
 
     config = AuracastGlobalConfig()
     # _2 variant uses different QoS (RTN=2, higher latency)
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
     config.transport = "serial:/dev/ttyAMA3,1000000,rtscts"
 
     # 16_2_2: 16kHz, 40 octets/frame

src/qualification/BAP/test_bap_bsrc_scc_bv22c.py

@@ -7,7 +7,7 @@ Configuration: 24kHz, 60 octets/frame, stereo (2 BISes), QoS _2 variant
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -21,7 +21,7 @@ if __name__ == "__main__":
 
     config = AuracastGlobalConfig()
     # _2 variant uses different QoS (RTN=2, higher latency)
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
     config.transport = "serial:/dev/ttyAMA3,1000000,rtscts"
 
     # 24_2_2: 24kHz, 60 octets/frame

src/qualification/BAP/test_bap_bsrc_scc_bv28c.py

@@ -7,7 +7,7 @@ Configuration: 48kHz, 100 octets/frame, stereo (2 BISes), QoS _2 variant
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -21,7 +21,7 @@ if __name__ == "__main__":
 
     config = AuracastGlobalConfig()
     # _2 variant uses different QoS (RTN=2, higher latency)
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
     config.transport = "serial:/dev/ttyAMA3,1000000,rtscts"
 
     # 48_2_2: 48kHz, 100 octets/frame

src/qualification/BAP/test_bap_bsrc_scc_bv30c.py

@@ -7,7 +7,7 @@ Configuration: 48kHz, 120 octets/frame, stereo (2 BISes), QoS _2 variant
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -21,7 +21,7 @@ if __name__ == "__main__":
 
     config = AuracastGlobalConfig()
     # _2 variant uses different QoS (RTN=2, higher latency)
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
     config.transport = "serial:/dev/ttyAMA3,1000000,rtscts"
 
     # 48_4_2: 48kHz, 120 octets/frame

src/qualification/BAP/test_bap_bsrc_scc_bv32c.py

@@ -8,7 +8,7 @@ Configuration: 48kHz, 155 octets/frame, stereo (2 BISes), QoS _2 variant
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -22,7 +22,7 @@ if __name__ == "__main__":
 
     config = AuracastGlobalConfig()
     # _2 variant uses different QoS (RTN=2, higher latency)
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
     config.transport = "serial:/dev/ttyAMA3,1000000,rtscts"
 
     # 48_6_2: 48kHz, 155 octets/frame

src/qualification/BAP/test_bap_bsrc_scc_str_bv04.py

@@ -5,7 +5,7 @@ For BV36-C and BV 37-C to success just restart the stream while the testcase is
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -22,7 +22,7 @@ if __name__ == "__main__":
     config = AuracastGlobalConfig()
 
     # Use same QoS profile as multicast main
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
 
     # Transport similar to multicast main; adjust if needed for your setup
     # config.transport = "auto"  # let multicast auto-detect

src/qualification/CAP/test_cap_ini_bst.py

@@ -10,7 +10,7 @@ Restart the stream when asked to terminate.
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -26,7 +26,7 @@ if __name__ == "__main__":
     config = AuracastGlobalConfig()
 
     # Use same QoS profile as multicast main
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
 
     # Transport similar to multicast main; adjust if needed for your setup
     # config.transport = "auto"  # let multicast auto-detect

src/qualification/GAP/test_gap_bis_bbm.py

@@ -4,7 +4,7 @@
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -21,7 +21,7 @@ if __name__ == "__main__":
     config = AuracastGlobalConfig()
 
     # Use same QoS profile as multicast main
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
 
     # Transport similar to multicast main; adjust if needed for your setup
     # config.transport = "auto"  # let multicast auto-detect

src/qualification/PBP/test_pbp_pbs_str_bv05c.py

@@ -9,7 +9,7 @@ PBP Features: 0x02 (Standard Quality)
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -23,7 +23,7 @@ if __name__ == "__main__":
 
     config = AuracastGlobalConfig()
     # 16_2_2 uses different QoS (RTN=2, higher latency)
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
     config.transport = "serial:/dev/ttyAMA3,1000000,rtscts"
 
     # 16_2_2: 16kHz

src/qualification/PBP/test_pbp_pbs_str_bv07c.py

@@ -9,7 +9,7 @@ PBP Features: 0x02 (Standard Quality)
 import logging
 import os
 
-from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosDefault
+from auracast.auracast_config import AuracastGlobalConfig, AuracastBigConfig, AuracastQosRobust
 from auracast.multicast import broadcast, run_async
 
 
@@ -23,7 +23,7 @@ if __name__ == "__main__":
 
     config = AuracastGlobalConfig()
     # 24_2_2 uses different QoS (RTN=2, higher latency)
-    config.qos_config = AuracastQosDefault()
+    config.qos_config = AuracastQosRobust()
     config.transport = "serial:/dev/ttyAMA3,1000000,rtscts"
 
     # 24_2_2: 24kHz