alnitak

Write correct flutter_scene code. Use this whenever building 3D with the flutter_scene Dart/Flutter engine (rendering a scene, geometry, materials, lighting, loading a .glb model, animation, custom shaders). It corrects the wrong assumptions models carry from…

Make a flutter_scene app hit frame budget. Use whenever a scene janks, stutters, or drops frames, or when the ask is to make it faster or run on mobile or web, because code-driven scenes are reliably slow and the fix depends on which thread is over budget,…

Teaches positional (3D) audio in flutter_soloud — play3d/play3dClocked/play3dScheduled, listener position/orientation/velocity, per-source attenuation and Doppler, and the per-frame update pattern. Use when the user asks for spatial audio, positional sound…

Teaches correct use of flutter_soloud's 12 DSP filters (echo, freeverb, biquad, bassboost, flanger, waveShaper, lofi, robotize, pitchShift, limiter, compressor, parametricEq) at global, per-sound, and per-bus scope, including activation ordering, FilterParam…

Core mental model for the flutter_soloud audio plugin — the SoLoud.instance singleton lifecycle (init/deinit), the AudioSource vs SoundHandle distinction, synchronous play semantics, and cross-platform constraints. Use when the user asks to play a sound, set…

Teaches how to load audio into flutter_soloud via loadAsset/loadMem/loadFile/loadUrl and joinTwoSources, choose between LoadMode.memory and LoadMode.disk, and manage the AudioSource lifecycle (disposeSource, autoDispose, allInstancesFinished). Use when a user…

Teaches how to use flutter_soloud mixing buses (Bus/Buses) to route groups of sounds through a shared sub-mix for collective volume control and shared filters. Use when the user asks for separate music/SFX/UI volume sliders, grouped effects, ducking music…

Teaches how to record the flutter_soloud engine's mixed master output as a Stream<Uint8List> (raw PCM or Opus/Vorbis/FLAC/WAV) using startMixerOutputStream/stopMixerOutputStream, including the WAV header fix-up and capturing from a worker isolate via…

Teaches positional (3D) audio in flutter_soloud — play3d/play3dClocked/play3dScheduled, listener position/orientation/velocity, per-source attenuation and Doppler, and the per-frame update pattern. Use when the user asks for spatial audio, positional sound…

Teaches correct use of flutter_soloud's 12 DSP filters (echo, freeverb, biquad, bassboost, flanger, waveShaper, lofi, robotize, pitchShift, limiter, compressor, parametricEq) at global, per-sound, and per-bus scope, including activation ordering, FilterParam…

Core mental model for the flutter_soloud audio plugin — the SoLoud.instance singleton lifecycle (init/deinit), the AudioSource vs SoundHandle distinction, synchronous play semantics, and cross-platform constraints. Use when the user asks to play a sound, set…

Teaches how to load audio into flutter_soloud via loadAsset/loadMem/loadFile/loadUrl and joinTwoSources, choose between LoadMode.memory and LoadMode.disk, and manage the AudioSource lifecycle (disposeSource, autoDispose, allInstancesFinished). Use when a user…

Teaches how to use flutter_soloud mixing buses (Bus/Buses) to route groups of sounds through a shared sub-mix for collective volume control and shared filters. Use when the user asks for separate music/SFX/UI volume sliders, grouped effects, ducking music…

Teaches how to record the flutter_soloud engine's mixed master output as a Stream<Uint8List> (raw PCM or Opus/Vorbis/FLAC/WAV) using startMixerOutputStream/stopMixerOutputStream, including the WAV header fix-up and capturing from a worker isolate via…

Teaches everyday playback control in the flutter_soloud package — play()/playSource, pause/stop/seek, looping regions, play speed, and voice introspection and management. Use when the user asks to play a sound, pause/resume/stop playback, seek or show…

Teaches the pull-buffer streaming API of the flutter_soloud audio plugin — setPullBufferStream with its onMoreDataIsNeeded callback, addPullBufferDataStream with byte offsets, seek via engine re-requests, and bounded-memory playback of huge seekable sources…

Teaches how to use flutter_recorder's AutoGain DSP audio filter, tune target RMS loudness, attack and release times, gain limits, noise floor threshold, and headroom, and inspect live metrics like limiter clips and current gain. Use when the user asks to…

Teaches how to use SpeexDSP Acoustic Echo Cancellation (AEC) and native duplex loopback in flutter_recorder, tune filter length and denoise suppression, configure low-latency sidetone/karaoke monitoring, and feed far-end speaker reference audio from…

Teaches robust architecture and design patterns for flutter_recorder, including service facades, ChangeNotifier/Riverpod state controllers, widget lifecycle management with AppLifecycleListener, audio session coordination with package:audio_session, and…

Teaches how to record audio to WAV and Ogg Opus files on disk, pause and resume recording, stop recordings, manage output directories across platforms, and handle Web file downloads. Use when a user asks to record microphone audio to a file, save WAV or Opus…

Teaches how to add flutter_recorder to a Flutter app, configure permissions on Android, iOS, macOS, and Linux, configure the web platform (script tags and WASM module), initialize and deinitialize the capture engine, enumerate input devices, configure…

Teaches how to configure automated silence detection, voice activity detection (VAD), silence thresholds in dB, duration triggers, pre-roll buffer retention, and silence event streams. Use when the user asks to detect silence, pause recording when silent,…

Teaches how to stream real-time audio data (PCM samples or Opus packets), convert sample formats with AudioDataContainer, handle the zero-copy buffer reuse constraint, and stream audio to network backends or speech-to-text models. Use when the user asks to…

Teaches how to capture real-time audio visualization data (time-domain waveforms, frequency-domain FFT spectrum bins, and volume in dB), configure PFFFT window sizes, apply FFT smoothing, and render waveform, spectrum bar, and VU meter CustomPainters. Use…