-law (u-law): Primary standard used in .
If you need to download audio specifically in G.711 format (often as a .wav file encoded with u-law or A-law), you typically convert an existing MP3 or WAV file using these tools:
This free open-source software can export files to G.711.
Open your audio, set the track to Mono , change the sample format to 16-bit PCM , and export the file as "Other uncompressed files" with "U-Law" or "A-Law" encoding.
Upload a file (max 50MB), select "u-law (8Khz, Mono)" or "A-law," and download the resulting telephony-ready file.
A dedicated free tool for converting DRM-free media into G.711 u-law or A-law formats compatible with telephony vendors.
Primary standard used in Europe and other international regions. How to Convert or Download G.711 Audio
The G.711 standard defines two main algorithms used for pulse-code modulation (PCM):