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PCM to AAC

Free Online PCM to AAC Converter – Batch Convert, Cut, and Compress Videos, Audio & Images

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This tool converts PCM to AAC completely free and without any functional limitations. Since it is based on the browser API, the processing speed is the fastest because all files are processed locally on your device and are not uploaded to our server.
About PCM files
PCM (Pulse Code Modulation) is the standard digital audio format that represents sound waves as numerical values. It's uncompressed, maintaining perfect audio quality but creating large file sizes. PCM serves as the basis for formats like WAV and CD audio, widely used in professional recording and broadcasting. Though not space-efficient, its lossless nature makes it ideal for high-fidelity audio applications where quality preservation is crucial.
About AAC files
AAC (Advanced Audio Coding) is a highly efficient audio compression format developed by Fraunhofer IIS, AT&T, Dolby, and others. It delivers better sound quality than MP3 at similar bitrates, making it ideal for music streaming, podcasts, and mobile devices. AAC is the default audio format for Apple products (iTunes, iPods, iPhones) and is widely supported across platforms. Its lossy compression reduces file sizes significantly while maintaining excellent audio fidelity, though it's not as universally compatible as MP3.

Free Batch Online Convert PCM to AAC

With the SoConvert tool, you can batch convert PCM files to AAC format for free directly in your browser. During the conversion process, you can adjust the audio bitrate.

Before converting, please set the Sample rate and Audio Channels for PCM in Options; otherwise, the audio from the source file may not be converted correctly.

Click Options in the top-right corner to open the settings panel and customize the AAC audio bitrate.

Other settings explained:

  1. Sample Rate: The sample rate setting of the source PCM. Common settings include:

    • Voice / Recognition: 16000 Hz

    • Music / MP3 / WAV: 44100 Hz

    • Extract audio from video: 48000 Hz

  2. Audio Channels: The number of channels of the source PCM. Common settings include:

    • 1 : Mono (single channel), voice, telephone

    • 2 : Stereo, music, video

    • 6 : 5.1 surround sound, movies

    • 8 : 7.1 surround sound, high-end home theater

  3. Encoding Speed: Select the encoding speed. The faster the speed, the larger the file size.

  4. Audio Bitrate: Recommended range: 8–320 Kbps

  5. Audio Trimming: Set the start and end time using the HH:MM:SS format. For example: from 00:00:05 to 00:00:08 will extract a 3-second audio clip.

Before conversion, you can choose a local folder to save the AAC files. After the PCM files are successfully converted, they will be automatically saved to the selected directory without any manual action.

Save All: After all files have been converted, click Save All to export all AAC files at once.