Audio Sampler - Pitch & Speed Control

Capture tab audio with pitch shift, speed control, and export to WAV, MP3, or WebM.

Audio Sampler is a high-fidelity Web Audio utility built for musicians, beatmakers, language learners, and podcast listeners. Easily capture active tab HTML5 audio from web players, apply real-time pitch shift or time-stretching, and export uncompressed studio-quality WAV, MP3, or WebM files. ★ KEY FEATURES IN v1.2.8: 💎 Multi-Format Audio Export (NEW) Choose your preferred file export format before recording: • WAV: Lossless 16-Bit PCM for pristine DAW editing & music production. • MP3: Universal high-quality audio file compatibility. • WebM: Native rapid export with zero processing delay. 🎤 Voice Preserve Mode (Time-Stretching) Speed up or slow down audio (0.5x to 2.0x) using our upgraded WSOLA engine. Keep natural vocal pitch perfectly intact without volume choppiness—essential for practicing languages, transcribing lectures, or practicing vocals. 🎛️ Link Speed & Pitch Mode (Tape / Vinyl Varispeed) Emulate classic tape machine and vinyl record pitch shifting! Speeding up raises the pitch, and slowing down drops the pitch—perfect for Lo-Fi sampling, Vaporwave, and sound design. 🎵 Real-Time Pitch Shift Control Transpose captured audio up or down by +/- 12 semitones effortlessly in real-time. ⚡ Global Keyboard Shortcuts Start and stop recording instantly without opening the extension menu by using the system shortcut: Alt + Shift + U. 🎧 Web Audio Compatibility Capture pristine audio directly from open web players, public domain archives, online lectures, educational audio sites, and podcast platforms. 📊 Lightweight Visualizer (Zero CPU Lag) Features a hardware-friendly CSS level meter so you can visually verify active audio capture without impacting browser performance. 🔒 100% Private & Secure All DSP processing runs locally in your browser using the native Web Audio API. Your captured audio is never uploaded to external servers. --- ℹ️ PLATFORM CAPTURE NOTICE: To fully comply with Chrome Web Store content policies, direct audio capture on restricted media streaming domains (like YouTube) is disabled. Audio Sampler is designed for processing audio on open web pages, royalty-free audio archives, and educational platforms. --- 🚀 ROADMAP / UPCOMING FEATURES: • v1.3.0: Custom user presets & global keyboard shortcuts for live pitch control. • v2.0.0: Instant Rewind Buffer (capture the last 30 seconds retroactively) & built-in audio trimming tools. Have feedback or feature suggestions? Let us know in the Support tab!