VMS to AU Audio conversion is the process of translating audio data stored in a VMS (Voice Messaging System) file format into the AU audio format, a simple, platform-neutral audio container historically used on Unix and web audio applications. This conversion extracts or decodes the original voice or recorded audio from VMS files and re-encodes it into AU with selectable sample rate, bit depth, and optional compression for broader compatibility and playback.
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Read guide →Drag your .VMS file from your computer or use the browse function.
Confirm .au as the selected destination format.
Click "Convert" and download your converted .AU file once ready.
VMS files use a proprietary codec often tied to certain devices and have a MIME type of audio/x-vms. AU Audio files typically use the audio/basic or audio/x-au MIME type and support codecs like μ-law and linear PCM. VMS files are mainly used for voice recordings, while AU format serves as a general-purpose audio container compatible with Unix-based systems.
The AU Audio (.AU) format is commonly used for audio. Understanding its characteristics can be helpful when converting to or from other formats like VMS.
While specific technical details aren't available here, AU Audio files generally serve the purpose of storing audio effectively within their domain.
Convert your VMS files to AU Audio format effortlessly with our online VMS to AU converter. Designed to provide fast and high-quality audio conversions, this tool supports seamless transformation of VMS files into the widely supported AU audio format without any software downloads.
VMS is a less common audio format primarily used in specific recording devices, which limits its playback options. AU Audio is a more standardized audio format widely supported across different operating systems and software, making it more versatile for everyday use and editing.
Keep individual VMS source files under 50–100 MB when possible for faster upload and conversion; split very large voicemail archives before processing.
To preserve speech clarity, convert VMS audio to AU using the same or higher sample rate and bit depth (e.g., 8 kHz G.711 -> 8 kHz or 16 kHz PCM) to avoid additional degradation.
Use lossless PCM AU output when you need maximum fidelity; choose mu-law AU only when file size is a priority for telephony-style recordings.
For large batches, compress many VMS files into a ZIP and use batch conversion tools that support parallel processing to save time.
This converter saved me so much time converting my VMS recordings to AU format.
Emily R.
Podcaster
High-quality conversions every time, very reliable for professional use.
Mike L.
Audio Engineer
Easy to use and perfect for converting lesson recordings quickly.
Sandra K.
Teacher
Start your free VMS to AU conversion now.
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Up to 250MB
Limitations: some proprietary VMS variants may embed headers or metadata that require a specific decoder; encrypted or corrupted VMS files may not convert without first extracting or repairing audio streams.