feat: add Robot (ring modulation) and Dźwięk z tostera (8-bit bitcrusher) player audio effects

zyrarbot/audio/effects/__init__.py

@@ -9,6 +9,8 @@ from zyrarbot.audio.effects.registry import (
     create_default_effects,
     get_available_effects_metadata,
 )
+from zyrarbot.audio.effects.robot import RobotEffect
+from zyrarbot.audio.effects.toaster import ToasterEffect
 from zyrarbot.audio.effects.tremolo import TremoloEffect
 
 __all__ = [
@@ -17,6 +19,8 @@ __all__ = [
     "DistortionEffect",
     "FourthDensityEffect",
     "MuffledEffect",
+    "RobotEffect",
+    "ToasterEffect",
     "TremoloEffect",
     "create_default_effects",
     "get_available_effects_metadata",

zyrarbot/audio/effects/registry.py

@@ -6,6 +6,8 @@ from zyrarbot.audio.effects.base import AudioEffect
 from zyrarbot.audio.effects.distortion import DistortionEffect
 from zyrarbot.audio.effects.fourth_density import FourthDensityEffect
 from zyrarbot.audio.effects.muffled import MuffledEffect
+from zyrarbot.audio.effects.robot import RobotEffect
+from zyrarbot.audio.effects.toaster import ToasterEffect
 from zyrarbot.audio.effects.tremolo import TremoloEffect
 
 
@@ -14,6 +16,8 @@ def create_default_effects() -> list[AudioEffect]:
     return [
         MuffledEffect(),
         FourthDensityEffect(),
+        RobotEffect(),
+        ToasterEffect(),
         DistortionEffect(),
         TremoloEffect(),
     ]

zyrarbot/audio/effects/robot.py

@@ -0,0 +1,48 @@
+from __future__ import annotations
+
+import array
+import math
+
+from zyrarbot.audio.effects.base import AudioEffect
+
+
+class RobotEffect(AudioEffect):
+    """Efekt metalicznego, robotycznego głosu oparty na ring modulation (modulacja pierścieniowa ~65Hz)."""
+
+    id = "robot"
+    name = "Robot"
+    description = "Metaliczny, robotyczny głos cyborga (ring modulation ~65Hz)"
+    badge = "CYBORG"
+    icon = "bot"
+
+    def __init__(self, freq_hz: float = 65.0, mix: float = 0.85) -> None:
+        self.freq_hz = freq_hz
+        self.mix = mix
+        self._phase = 0.0
+        self._phase_inc = 2.0 * math.pi * freq_hz / 48000.0
+
+    def process(self, pcm_data: bytes, sample_rate: int = 48000) -> bytes:
+        if not pcm_data:
+            return pcm_data
+
+        samples = array.array("h", pcm_data)
+        phase = self._phase
+        phase_inc = self._phase_inc
+        mix = self.mix
+        dry = 1.0 - mix
+
+        for i in range(0, len(samples), 2):
+            carrier = math.sin(phase)
+            phase += phase_inc
+            if phase >= 2.0 * math.pi:
+                phase -= 2.0 * math.pi
+
+            mod_factor = dry + mix * carrier
+            samples[i] = max(-32768, min(32767, int(samples[i] * mod_factor)))
+            samples[i + 1] = max(-32768, min(32767, int(samples[i + 1] * mod_factor)))
+
+        self._phase = phase
+        return samples.tobytes()
+
+    def reset(self) -> None:
+        self._phase = 0.0

zyrarbot/audio/effects/toaster.py

@@ -0,0 +1,56 @@
+from __future__ import annotations
+
+import array
+
+from zyrarbot.audio.effects.base import AudioEffect
+
+
+class ToasterEffect(AudioEffect):
+    """Efekt 'dźwięku z tostera / mikrofalówki' – memiczny lo-fi bitcrusher (5-bit quant + downsampling)."""
+
+    id = "toaster"
+    name = "Dźwięk z tostera"
+    description = "Memiczny dźwięk z mikrofalówki / kalkulatora (bitcrusher 5-bit, aliasing)"
+    badge = "8-BIT"
+    icon = "radio"
+
+    def __init__(self, bit_depth: int = 5, downsample: int = 6) -> None:
+        self.bit_depth = bit_depth
+        self.downsample = downsample
+        self.shift = 16 - bit_depth
+        self._counter = 0
+        self._hold_l = 0
+        self._hold_r = 0
+
+    def process(self, pcm_data: bytes, sample_rate: int = 48000) -> bytes:
+        if not pcm_data:
+            return pcm_data
+
+        samples = array.array("h", pcm_data)
+        shift = self.shift
+        down = self.downsample
+        hold_l = self._hold_l
+        hold_r = self._hold_r
+        cnt = self._counter
+
+        for i in range(0, len(samples), 2):
+            if cnt == 0:
+                # Obniżenie rozdzielczości bitowej (bitcrush / kwantyzacja do 5 bitów)
+                sl = samples[i]
+                sr = samples[i + 1]
+                hold_l = (sl >> shift) << shift
+                hold_r = (sr >> shift) << shift
+
+            samples[i] = hold_l
+            samples[i + 1] = hold_r
+            cnt = (cnt + 1) % down
+
+        self._counter = cnt
+        self._hold_l = hold_l
+        self._hold_r = hold_r
+        return samples.tobytes()
+
+    def reset(self) -> None:
+        self._counter = 0
+        self._hold_l = 0
+        self._hold_r = 0

zyrarbot/ui/bot/cogs/control_cog.py

@@ -117,6 +117,8 @@ class ControlCog(MusicCogBase, name="Control"):
         nazwa=[
             app_commands.Choice(name="Przester (1000%)", value="distortion"),
             app_commands.Choice(name="Czwarta gęstość (~1s pitch)", value="fourth_density"),
+            app_commands.Choice(name="Robot (cyborg voice)", value="robot"),
+            app_commands.Choice(name="Dźwięk z tostera (8-bit lo-fi)", value="toaster"),
             app_commands.Choice(name="Pod wodą (lowpass)", value="muffled"),
             app_commands.Choice(name="Tremolo (pulsowanie)", value="tremolo"),
         ]