Professional PCM Player & Converter
Privacy-First Audio Engine
Convert, play and record audio formats entirely in your browser. Your audio files and recordings are processed locally and never uploaded to the server.
Drop audio files here
WAV, PCM, RAW, MP3, OPUS, OGG (Up to 5 files)
100% Private: Files processed locally in your browser
What are the features of audio-converters?
Edge Processing
Secure local processing with FFmpeg-WASM. Zero server reliance for maximum privacy and rapid execution.
Granular PCM Control
Precision control over raw PCM streams with dynamic sample rate (8kHz-48kHz), 16-bit depth, and mono channel options.
High-Fidelity Resampling
Studio-grade resampling between 8,000 Hz, 16,000 Hz, 44,100 Hz, and 48,000 Hz for professional signal processing.
Absolute Privacy First
Your audio never touches a remote server. Everything happens strictly inside your browser memory (RAM).
Opus & VoIP Optimized
Native support for the Opus codec, ideal for high-efficiency web streaming, speech synthesis, and WebRTC applications.
Instant Zero-Latency Execution
Bypass slow network uploads. Audio decoding and encoding start the exact millisecond you trigger the action.
What Our Users Say
JOIN 10,000+ DEVELOPERS & CREATORS
See what engineers and creators worldwide say about our edge audio processing toolkit.
"audio-converters is a game-changer for our VoIP debugging. Being able to drop a raw PCM dump and hear it instantly saved us hours of debugging time."
Alex Rivest
Senior WebRTC Engineer"The cleanest UI I have seen for an audio tool. No intrusive ads, zero waiting for server queues. It works instantaneously and preserves complete privacy."
Sarah Jenkins
Podcast Producer & Sound Designer"Finally, an online tool that actually understands raw PCM. The manual parameter configuration is exactly what developers working with AI speech models need."
Chen Wei
AI Speech Research LeadMaster Your Audio &
PCM Like a Pro
Upload or Record Securely
Drag and drop raw PCM streams, WAV, MP3, or Opus files, or capture microphone audio in real time. All processing executes 100% in-browser via WebAssembly.
Configure Details & PCM Parameters
Manually specify sample rate (8kHz to 48kHz), bit depth (16-bit), and channel layout for raw files, or let the engine auto-detect standard audio headers.
Instant Export & Resampling
Convert between frequencies and audio formats in milliseconds without uploading to any remote server or paying subscription fees.
Frequently Asked Questions (FAQ)
Comprehensive PCM Audio & Format Conversion Guide
Pulse Code Modulation (PCM) is the uncompressed digital representation of analog audio signals. While standard audio formats like WAV, MP3, and OPUS wrap audio data inside structured headers (specifying sample rate, bit depth, and channel count), raw PCM files (.pcm, .raw) contain pure sample values with zero metadata. Without a specialized PCM player, standard media players cannot decode the stream. audio-converters empowers developers, AI researchers, and audio engineers to preview, play, inspect waveforms, and convert raw PCM files directly in the browser.
| Format | Type | Header Container | Standard Sample Rates | Ideal Use Cases |
|---|---|---|---|---|
| PCM (.pcm / .raw) | Headerless Raw Stream | None (0 bytes) | 8kHz, 16kHz, 44.1kHz, 48kHz | AI Speech Training (Whisper/ASR), Embedded ESP32, VoIP Debugging, Telephony |
| WAV (.wav) | Uncompressed RIFF Container (44-byte header) | RIFF / fmt (44 bytes) | 44.1kHz, 48kHz, 96kHz | Studio Production, Master Audio, Sound Design, Broadcast Quality |
| MP3 (.mp3) | Lossy MPEG-1 Audio Layer III | ID3 Tag + Sync frames | 32kHz, 44.1kHz, 48kHz | Podcasts, Music Distribution, Web Streaming, Universal Compatibility |
| OPUS (.opus / .ogg) | Lossy Low-Latency Interactive Codec | Ogg encapsulation | 8kHz, 16kHz, 24kHz, 48kHz | Discord, WebRTC, Real-time Voice Chat, Low-bandwidth Transmission |