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https://github.com/onyx-and-iris/vban-cmd-python.git
synced 2026-03-12 04:59:09 +00:00
improve efficiency with cached properties and struct.unpack
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5363584940
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@ -1,4 +1,6 @@
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import struct
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from dataclasses import dataclass
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from functools import cached_property
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from typing import NamedTuple
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from vban_cmd.enums import NBS
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@ -21,6 +23,13 @@ class ChannelState:
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# Convert 4-byte state to integer once for efficient lookups
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self._state = int.from_bytes(state_bytes, 'little')
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@classmethod
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def from_int(cls, state_int: int):
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"""Create ChannelState directly from integer for efficiency"""
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instance = cls.__new__(cls)
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instance._state = state_int
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return instance
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def get_mode(self, mode_value: int) -> bool:
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"""Get boolean state for a specific mode"""
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return (self._state & mode_value) != 0
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@ -147,32 +156,17 @@ class VbanRTPacketNBS0(VbanRTPacket):
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def pdirty(self, other) -> bool:
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"""True iff any defined parameter has changed"""
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self_gains = (
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self._stripGaindB100Layer1
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+ self._stripGaindB100Layer2
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+ self._stripGaindB100Layer3
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+ self._stripGaindB100Layer4
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+ self._stripGaindB100Layer5
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+ self._stripGaindB100Layer6
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+ self._stripGaindB100Layer7
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+ self._stripGaindB100Layer8
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)
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other_gains = (
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other._stripGaindB100Layer1
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+ other._stripGaindB100Layer2
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+ other._stripGaindB100Layer3
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+ other._stripGaindB100Layer4
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+ other._stripGaindB100Layer5
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+ other._stripGaindB100Layer6
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+ other._stripGaindB100Layer7
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+ other._stripGaindB100Layer8
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)
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return (
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self._stripState != other._stripState
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or self._busState != other._busState
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or self_gains != other_gains
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or self._stripGaindB100Layer1 != other._stripGaindB100Layer1
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or self._stripGaindB100Layer2 != other._stripGaindB100Layer2
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or self._stripGaindB100Layer3 != other._stripGaindB100Layer3
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or self._stripGaindB100Layer4 != other._stripGaindB100Layer4
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or self._stripGaindB100Layer5 != other._stripGaindB100Layer5
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or self._stripGaindB100Layer6 != other._stripGaindB100Layer6
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or self._stripGaindB100Layer7 != other._stripGaindB100Layer7
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or self._stripGaindB100Layer8 != other._stripGaindB100Layer8
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or self._busGaindB100 != other._busGaindB100
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or self._stripLabelUTF8c60 != other._stripLabelUTF8c60
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or self._busLabelUTF8c60 != other._busLabelUTF8c60
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@ -186,75 +180,52 @@ class VbanRTPacketNBS0(VbanRTPacket):
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)
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return any(self._strip_comp) or any(self._bus_comp)
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@property
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@cached_property
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def strip_levels(self) -> tuple[float, ...]:
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"""Returns strip levels in dB"""
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return tuple(
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round(
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int.from_bytes(self._inputLeveldB100[i : i + 2], 'little', signed=True)
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* 0.01,
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1,
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)
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for i in range(0, len(self._inputLeveldB100), 2)
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)[: self._kind.num_strip_levels]
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strip_raw = struct.unpack('<34h', self._inputLeveldB100)
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return tuple(round(val * 0.01, 1) for val in strip_raw)[
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: self._kind.num_strip_levels
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]
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@property
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@cached_property
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def bus_levels(self) -> tuple[float, ...]:
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"""Returns bus levels in dB"""
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return tuple(
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round(
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int.from_bytes(self._outputLeveldB100[i : i + 2], 'little', signed=True)
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* 0.01,
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1,
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)
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for i in range(0, len(self._outputLeveldB100), 2)
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)[: self._kind.num_bus_levels]
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bus_raw = struct.unpack('<64h', self._outputLeveldB100)
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return tuple(round(val * 0.01, 1) for val in bus_raw)[
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: self._kind.num_bus_levels
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]
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@property
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def levels(self) -> Levels:
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"""Returns strip and bus levels as a namedtuple"""
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return Levels(strip=self.strip_levels, bus=self.bus_levels)
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@property
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@cached_property
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def states(self) -> States:
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"""returns States object with processed strip and bus channel states"""
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strip_states = struct.unpack('<8I', self._stripState)
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bus_states = struct.unpack('<8I', self._busState)
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return States(
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strip=tuple(
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ChannelState(self._stripState[i : i + 4]) for i in range(0, 32, 4)
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),
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bus=tuple(ChannelState(self._busState[i : i + 4]) for i in range(0, 32, 4)),
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strip=tuple(ChannelState.from_int(state) for state in strip_states),
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bus=tuple(ChannelState.from_int(state) for state in bus_states),
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)
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@property
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@cached_property
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def gainlayers(self) -> tuple:
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"""returns tuple of all strip gain layers as tuples"""
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return tuple(
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tuple(
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round(
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int.from_bytes(
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getattr(self, f'_stripGaindB100Layer{layer}')[i : i + 2],
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'little',
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signed=True,
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)
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* 0.01,
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2,
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)
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for i in range(0, 16, 2)
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)
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for layer in range(1, 9)
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)
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layer_data = []
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for layer in range(1, 9):
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layer_bytes = getattr(self, f'_stripGaindB100Layer{layer}')
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layer_raw = struct.unpack('<8h', layer_bytes)
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layer_data.append(tuple(round(val * 0.01, 2) for val in layer_raw))
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return tuple(layer_data)
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@property
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@cached_property
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def busgain(self) -> tuple:
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"""returns tuple of bus gains"""
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return tuple(
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round(
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int.from_bytes(self._busGaindB100[i : i + 2], 'little', signed=True)
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* 0.01,
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2,
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)
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for i in range(0, 16, 2)
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)
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bus_gain_raw = struct.unpack('<8h', self._busGaindB100)
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return tuple(round(val * 0.01, 2) for val in bus_gain_raw)
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@property
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def labels(self) -> Labels:
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@ -1,5 +1,6 @@
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import struct
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from dataclasses import dataclass
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from functools import cached_property
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from typing import NamedTuple
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from vban_cmd.enums import NBS
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@ -193,11 +194,15 @@ class VbanVMParamStrip:
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_Pitch_formant_high=data[172:174],
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)
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@property
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@cached_property
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def mode(self) -> int:
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return int.from_bytes(self._mode, 'little')
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@property
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@cached_property
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def karaoke(self) -> int:
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return int.from_bytes(self._nKaraoke, 'little')
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@cached_property
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def audibility(self) -> Audibility:
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return Audibility(
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round(int.from_bytes(self._audibility, 'little', signed=True) * 0.01, 2),
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@ -206,7 +211,7 @@ class VbanVMParamStrip:
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round(int.from_bytes(self._audibility_d, 'little', signed=True) * 0.01, 2),
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)
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@property
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@cached_property
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def positions(self) -> Positions:
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return Positions(
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round(int.from_bytes(self._pos3D_x, 'little', signed=True) * 0.01, 2),
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@ -217,7 +222,7 @@ class VbanVMParamStrip:
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round(int.from_bytes(self._posMod_y, 'little', signed=True) * 0.01, 2),
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)
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@property
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@cached_property
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def eqgains(self) -> EqGains:
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return EqGains(
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*[
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@ -230,7 +235,7 @@ class VbanVMParamStrip:
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]
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)
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@property
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@cached_property
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def parametric_eq(self) -> tuple[ParametricEQSettings, ...]:
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return tuple(
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ParametricEQSettings(
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@ -243,7 +248,7 @@ class VbanVMParamStrip:
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for i in range(6)
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)
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@property
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@cached_property
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def sends(self) -> Sends:
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return Sends(
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round(int.from_bytes(self._send_reverb, 'little', signed=True) * 0.01, 2),
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@ -252,11 +257,7 @@ class VbanVMParamStrip:
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round(int.from_bytes(self._send_fx2, 'little', signed=True) * 0.01, 2),
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)
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@property
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def karaoke(self) -> int:
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return int.from_bytes(self._nKaraoke, 'little')
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@property
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@cached_property
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def compressor(self) -> CompressorSettings:
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return CompressorSettings(
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gain_in=round(
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@ -276,7 +277,7 @@ class VbanVMParamStrip:
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),
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)
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@property
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@cached_property
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def gate(self) -> GateSettings:
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return GateSettings(
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threshold_in=round(
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@ -295,7 +296,7 @@ class VbanVMParamStrip:
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release_ms=round(int.from_bytes(self._GATE_release_ms, 'little') * 0.1, 2),
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)
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@property
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@cached_property
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def denoiser(self) -> DenoiserSettings:
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return DenoiserSettings(
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threshold=round(
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@ -303,7 +304,7 @@ class VbanVMParamStrip:
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)
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)
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@property
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@cached_property
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def pitch(self) -> PitchSettings:
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return PitchSettings(
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enabled=bool(int.from_bytes(self._PitchEnabled, 'little')),
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