At Transcriptionwave, the transcription software that we use is compatible with MP3. As such, our preferred choice of audio format for transcription is MP3.

However, we accept all audio and video formats for transcription, including encrypted audio. Any audio that we receive in any of the following formats gets converted into MP3 before we proceed with transcription:

• Audio Files (mp3, wav, aiff, m4a)
  Video Files (.avi, .mpg, .mpeg, .wmv, .asf)
• Wave Files (.wav)
  MPEG Layer-3 Files (.mp3, .mp2, .mpga)
• Ogg Vorbis Files (.ogg)
  Sony Recorder formats (msv, dvf)
• Windows media Audio Files (.wma)
  Apple AIFF Files (.aif, .aiff)
• Sun AU Files (.au)
  Real Audio Files (.ra, .ram, .rm, .rmj)
• FLAC Files (.flac)
  AAC Files (.aac, .m4a)
• DSP TrueSpeech*, GSM 6.10, (.gsm)
  Dialogic Vox Files (.vox)
• Raw Audio Files (.raw)
  MIDI Files (.mid)
• Philips Digital Recorder format
  Olympus, Lanier & Grundig (.dss)
• VoiceIt Files (.sri)
  Dictation Files (.dct)
• Record Files (.act, .rcd, .rec)
  Shorten Files (.shn)
• Sanyo Digital Recorder format
  AMR Narrowband Audio Files (.amr)
• IMS Files (.moh)
  Musepack Files (.mpc)
• Monkey's Audio Files (.ape)
  ALaw, ADPCM, CELP, SBC,
• Speex Audio Files (.spx)
  Windows media Video Files (.wmv, .asf)
• Speex Audio Files (.spx)
  Windows media Video Files (.wmv, .asf)
• MPEG Video Files (.mpg, .mpeg)
  Audio Video Interleave Files (.avi)
• MPEG Video Files (.mpg, .mpeg)
  Audio Video Interleave Files (.avi)
• Quicktime Files (.mov)
  DVD Files (.vob, .divx)
• PCM, uLaw
  3G Mobile Phone Video files (.3gp)