AC3 to WMA Converter
Convert AC3 to WMA online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
How it works
Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an AC3 file?
The AC3 format, technically known as Dolby Digital, is a perceptual audio coding standard developed by Dolby Laboratories and standardized under ATSC A/52. It employs the Modified Discrete Cosine Transform (MDCT) algorithm to compress audio data, supporting channel configurations ranging from mono up to 5.1 discrete surround sound channels (left, center, right, left-surround, right-surround, and LFE). AC3 is the standard audio track format for DVD-Video, Blu-ray Disc, and ATSC/DVB digital television broadcasting, utilizing metadata parameters like dialnorm to control dynamic range.
How to open an AC3 file
While modern Windows versions may decode AC3 natively within specific container formats, raw AC3 files often require third-party software due to licensing restrictions on the Dolby codec. VLC Media Player is the primary recommendation for opening AC3 files on Windows, macOS, and Linux, as it includes built-in A/52 decoders. Alternatively, users may install the K-Lite Codec Pack or use MPC-HC (Media Player Classic Home Cinema) to enable system-wide support for Dolby Digital streams.
AC3 Technical Info
- Full Name
- Audio Codec 3 (Dolby Digital)
- Developed By
- Dolby Laboratories
- Initial Release
- 1991
- MIME Type
- audio/ac3
What is a WMA file?
Windows Media Audio (WMA) refers to a series of audio codecs and their corresponding Microsoft container format, designed as a competitor to MP3 and RealAudio. The standard WMA codec is lossy, but the format family includes WMA Lossless, WMA Pro (multichannel), and WMA Voice. It utilizes the Advanced Systems Format (ASF) container structure and supports digital rights management (DRM), which historically restricted playback to authorized Windows devices.
How to open a WMA file
WMA files are native to the Windows ecosystem and open by default in Windows Media Player and Movies & TV. macOS users require third-party components like Flip4Mac (legacy) or universal players such as VLC Media Player and Elmedia Player to decode the stream. Android and Linux support is generally provided via VLC or by installing ffmpeg-based media libraries.
WMA Technical Info
- Full Name
- Windows Media Audio
- Developed By
- Microsoft
- Initial Release
- 1999
- MIME Type
- audio/x-ms-wma
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The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
Convert AC3 to WMA in seconds
Every AC3 to WMA conversion runs on our servers, so your device stays fast and the output quality stays intact.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
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Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
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Developer API
Convert AC3 to WMA via API
Automate AC3 to WMA conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "ac3-to-wma",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "wma"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.ac3
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.