Convert Audio Files

This topic describes how to convert audio files via WavePad or G711 File Converter online.

Background information

Audio files to be uploaded as MoH files or custom prompts must meet the requirements. If your audio file does not meet the requirement, you can use audio editor to convert file format.

In this topic, we take the followings as examples to show you how to convert file format.

Convert audio files via WavePad

To use WavePad to convert audio files to new formats, download WavePad to your local PC, and proceed as follows.

  1. Launch WavePad, open your audio file.
  2. Click File > Save File As.

  3. In the Save as type drop-down list, select Wave(*.wav), MPEG Layer-3(*.mp3), or GSM(*.gsm), click Save.

  4. If you save the audio file as Wave(*.wav) or MPEG Layer-3(*.mp3), you need to configure the encoder options and click OK.
    Note: Select any one of the encoders, and configure relevant options as below.
    • PCM Uncompressed, Mono, 8000 Hz, 16 bits Integer
    • CCITT A-law, Mono, 8000 Hz, 8 bits Integer
    • CCITT u-law, Mono, 8000 Hz, 8 bits Integer

Convert audio files online

If you don't want to download an app, you can quickly convert your audio files via G711 File Converter online.

  1. Go to
  2. Click Browse to upload your audio file.
  3. Set the Output Format.
    Note: Select any one of u-law WAV (8Khz, Mono, u-law), a-law WAV (8Khz, Mono, a-law), and Standard Definition WAV (8Khz, Mono, 16-Bit PCM).

  4. Click Submit to start converting the file.