Professional audio editor for creating seamless, click-free loops directly in Unity. Features crossfading, zero-crossing detection, and automatic metadata injection.ClipLoop is a pure Unity Editor tool built with C# and UI Toolkit. It does not use custom shaders, materials or render-pipeline-specific features, so it works with Built-in, URP and HDRP. Recommended for Unity 2022.3 LTS and newerClipLoop — Seamless Audio Loop Editor for UnityClipLoop is a professional, native Unity Editor tool that lets you create click-free, seamless audio loops directly inside the engine. No need to switch to an external DAW: import an AudioClip, set the loop region, preview the result in real time and export a loop-ready WAV file in seconds.Key FeaturesDedicated waveform editor built with UI Toolkit (zoom, pan, interactive start/end markers).Pre-roll crossfade algorithm that preserves the loop's initial transient.Phase-accurate zero-crossing snap to eliminate pops and clicks.WAV export with embedded smpl loop metadata for native Unity recognition.Real-time processed preview with normalization.Optional mono export for mobile, VR and spatial audio.Localized UI in English and Spanish.Ready-to-play demo scene with RAW vs SEAMLESS A/B comparison.Offline PDF and RTF documentation included.Perfect forAmbient music and background loops.Sound effects with defined loop regions.Quickly prototyping loop ideas without leaving Unity.Preparing stereo or mono audio for mobile and spatial projects.RequirementsUnity 2022.3 LTS or newer.Compatible with Built-in, URP and HDRP render pipelines.Editor-only tool; no runtime dependencies except the optional demo controller.Technical Details — Key FeaturesNative Unity Editor Tool — Runs entirely inside the Unity Editor using UI Toolkit, with no external dependencies.Waveform Editor — Visual waveform display with zoom, pan and draggable start/end markers.Pre-Roll Crossfade — Smoothly blends the loop boundary using audio before the start point to keep the initial transient intact.Zero-Crossing Snap — Automatically aligns loop markers to the nearest zero-crossing sample to remove clicks and pops.SMPL Metadata Export — Writes standard WAV smpl chunks so Unity recognizes loop points on import.Real-Time Preview — Hear the processed loop with crossfade and normalization before exporting.Mono Export Option — Collapse stereo clips to mono for mobile, VR and spatial audio workflows.Editor-Only Architecture — No runtime scripts except the optional demo controller.Multi-Language UI — English and Spanish localization.Demo Scene — Ready-to-play A/B comparison between RAW and SEAMLESS loops, plus 3D visuals and instructions.Offline Documentation — Included PDF and RTF documentation with tutorials, script reference and troubleshooting.Render Pipeline Compatibility — Works with Built-in, URP and HDRP.AI was used as a development assistant during the creation of ClipLoop. Specifically:It helped structure, review and refine the C# scripts for the editor tool, waveform visualization and audio processing logic.It assisted in drafting documentation, marketing descriptions and prompt ideas for promotional images.All code, audio, visuals and final documentation were reviewed, tested and validated by a human before submission.The example audio clips in the demo scene are procedurally generated waveforms, not AI-generated audio samples.
