en
Audio Format Good Specialized Directly accepted

Speex (Speex Codec)

Open-source codec designed specifically for speech and VoIP, predecessor to Opus.

Yes, we support Speex!

Technical Specifications

Sample Rate 8-32kHz
Compression Lossy

Advantages

  • Total focus on voice
  • Open source

Disadvantages

  • Replaced by Opus

Use Cases

Legacy voice systemsVoIP archiving

How It Works

1

Upload your file

Upload your Speex file via browser or drag and drop.

2

Automatic transcription

Our AI transcribes the audio with high accuracy in minutes.

3

Download the result

Download the transcription as text, SRT, VTT or other formats.

Yes, we support Speex!

Open-source codec designed specifically for speech and VoIP, predecessor to Opus.

Frequently Asked Questions

Does VoxScriber support Speex files?

Yes! VoxScriber fully supports Speex files. Simply upload your file and our AI will automatically transcribe it with high accuracy.

What is the audio quality of Speex?

Speex offers Good 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 Speex file to text?

Go to VoxScriber, upload your Speex 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.