SIPR (RealAudio SIPR / ACELP.NET)
RealAudio voice codec based on ACELP from Sipro Lab. Optimized for low-bitrate voice streaming on the RealMedia platform.
Yes, we support SIPR!
Technical Specifications
Advantages
- Broad compatibility with legacy players and systems
- Accepted directly without the need for conversion
- Accurate automatic transcription via AssemblyAI
Disadvantages
- Lossy compression — not ideal for final production masters
- Limited audio quality can reduce transcription accuracy
- Requires a compatible container (.mov, .mkv, or .avi depending on the codec)
Use Cases
How It Works
Upload your file
Upload your SIPR file via browser or drag and drop.
Automatic transcription
Our AI transcribes the audio with high accuracy in minutes.
Download the result
Download the transcription as text, SRT, VTT or other formats.
Yes, we support SIPR!
RealAudio voice codec based on ACELP from Sipro Lab. Optimized for low-bitrate voice streaming on the RealMedia platform.
Frequently Asked Questions
Does VoxScriber support SIPR files?
Yes! VoxScriber fully supports SIPR files. Simply upload your file and our AI will automatically transcribe it with high accuracy.
What is the audio quality of SIPR?
SIPR offers Basic audio quality with Lossy compression. This makes it suitable for most transcription use cases — our AssemblyAI engine extracts audio accurately regardless of compression level.
How do I transcribe a SIPR file to text?
Go to VoxScriber, upload your SIPR file (up to 5 GB / 10 hours), select the language and click transcribe. Your result will be ready in minutes as text, SRT or VTT.