PCM Player

A simple and convenient web-based PCM player that plays .pcm audio files in the browser, supporting PCM files with sampling rates such as 8K, 16K, etc.
Convenient for playing PCM files, can be used to listen to PCM files and analyze PCM audio files.

Import Files

Drag files here, or click to upload
(Supports multiple selection, hold Ctrl to select multiple files)
Default PCM format parameters: 16000Hz, 16bit, Mono
{{ file.name }}
{{ file.sizeStr }}
Speed: {{ rate }}x

📖 How to open .pcm audio files and play sound

  1. 📁 Import files: Click the upload area above or drag and drop .pcm files to the upload box
  2. ▶️ Start playing: Click the play button of the player to listen to the PCM audio
  3. ⚡ Adjust speed: Use the speed buttons or enter a custom speed value (0.5x - 2.5x), you can also enter a custom multiplier to adjust the playback speed
  4. 🔄 Batch processing: Support importing multiple PCM files at the same time for convenient batch listening and comparison, noise analysis

🎵 What is a PCM file

PCM (Pulse Code Modulation) is an uncompressed raw audio data format.

📊 Information stored in PCM files:

  • 🎚️ Sample Rate: Number of samples per second, common values such as 8000Hz, 16000Hz, 44100Hz
  • 🔢 Bit Depth: Number of bits per sample point, common values are 8bit, 16bit, 24bit
  • 🔊 Channels: Mono or Stereo
  • 💾 Raw audio data: Audio sample values arranged in chronological order

⚠️ Note: PCM files themselves do not contain header information, so parameters such as sample rate, bit depth, and number of channels need to be known when playing.

🎧 What players can play PCM files

Most conventional audio players cannot directly play PCM files because PCM lacks the necessary file header information.

🛠️ Features of this program:

  • ✨ Automatically add WAV header: Automatically add WAV file header to PCM data so that it can be played in the browser
  • 📋 Supported PCM formats: Default support for 16000Hz, 16bit, mono PCM files (the most common voice recording format)
  • 🎛️ Speed control function:
    • ⏩ Fast playback: 1.5x, 2x quick listening
    • ⏪ Slow playback: 0.5x, 0.75x slow analysis
    • 🎯 Custom speed: Support for any speed between 0.5x - 2.5x
  • 🌐 Pure web tool: No software installation required, just open the browser to use
  • 🔒 Local processing: All files are processed locally in the browser and will not be uploaded to the server

⭐ Features and characteristics of the PCM file player

🆓

Free PCM audio file player

Completely free to use, no registration required, ready to use, supports mobile phones and computers

⚡

Supports adjusting playback speed

Preset 1.5x speed, 2x speed and other quick options, speed up/down, fast listening

🎯

Supports custom playback speed

Any speed between 0.5x - 2.5x, precise control of playback rate

🎚️

Supports PCM files with different sampling rates

Default support for PCM files with 16000Hz/8000Hz sampling rate, suitable for common voice formats

🎧

Convenient for listening to PCM files

Drag and drop to play, support batch import, simple and convenient operation

🔬

Very helpful for analyzing PCM raw audio files

Debugging tool for audio developers and engineers, quickly verify PCM data