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Supported Audio & Video Formats | VoxScriber - Complete List

Complete list of audio and video formats supported by VoxScriber: MP3, WAV, M4A, FLAC, MP4, MOV, AVI, and more.

Supported Audio and Video Formats

Complete list of all formats accepted by VoxScriber, with quality recommendations, technical specifications, and tips to optimize your files for the best possible transcription.

Accepted Formats

Audio (Recommended)

  • MP3, WAV, M4A, FLAC, OGG, WMA, AAC, AIFF

Video (Audio extracted)

  • MP4, MOV, AVI, MKV, WMV, FLV, WebM

Audio Formats - Detailed Analysis

MP3

Quality: Good | Compression: Lossy

The most popular format, good compression and acceptable quality.

Advantages:

  • Small file sizes
  • Universally supported
  • Fast upload

Disadvantages:

  • Quality loss from compression
  • Not ideal for critical transcriptions

Best for: General recordings, meetings, lectures

WAV

Quality: Excellent | Compression: Uncompressed

Advantages:

  • Maximum audio quality
  • No data loss
  • Best for precise transcription

Disadvantages:

  • Very large files
  • Slower upload

Best for: Professional transcriptions requiring maximum accuracy

M4A

Quality: Very Good | Compression: Advanced compression

Advantages:

  • Better quality than MP3 at similar size
  • Native iPhone/iPad format
  • Good compression

Best for: Smartphone recordings from Apple devices, podcasts

FLAC

Quality: Excellent | Compression: Lossless

Advantages:

  • Quality equal to WAV
  • Smaller file than WAV
  • No data loss

Disadvantages:

  • Larger files than MP3
  • Less widely supported than MP3

Best for: Professional audio where quality is a priority

OGG

Quality: Good | Compression: Optimized lossy

Advantages:

  • Free and open source format
  • Good quality with efficient compression

Best for: Recordings from open source software

Supported Video Formats

For video files: We automatically extract the audio and process only the sound track. The video is not used in the transcription, only the audio.

Accepted formats

  • MP4 - Most common video format
  • MOV - Native QuickTime/Apple format
  • AVI - Classic Windows format
  • MKV - Versatile container
  • WMV - Windows Media Video
  • FLV - Flash Video
  • WebM - Modern web format

Technical Specifications

| Specification | Limit | |---|---| | Maximum size | 5 GB | | Maximum duration | 10 hours | | Minimum recommended bitrate | 128 kbps | | Channels | Mono or stereo | | Sample rate | 8 kHz - 48 kHz |

Tips for Choosing the Best Format

For most cases, MP3 at 192kbps or higher offers the best balance between quality and file size.
If you need maximum accuracy, use WAV or FLAC to preserve the original audio quality.
Smartphone recordings in M4A work perfectly with no need for conversion.

Free Conversion Tools

Audacity

Free and powerful audio editor. Ideal for converting, editing, and optimizing audio files.

  • Converts all formats
  • Removes noise
  • Improves quality

VLC Media Player

Media player that also converts audio and video to any format.

  • Converts audio and video
  • Simple interface
  • Supports all formats

Online Converters

Several free online options for quick conversions.

  • No installation required
  • Quick and practical
  • Multiple formats

Have a file ready?

Now that you know all the supported formats, why not test the quality of our transcription with your own file?

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