A computer program for acoustic analysis of speech sounds


You can use Speech Analyzer to do the following tasks:

  • Perform fundamental frequency, spectrographic and spectral analysis, and duration measurements.
  • Add phonemic, orthographic, tone, and gloss transcriptions to phonetic transcriptions in an interlinear format.
  • Perform ethnomusicological analysis of music recordings.
  • Use slowed playback, repeat loops and overlays to assist with perception and mimicry of sounds for language learning.





Speech Analyzer 3.1 for Windows

Review the latest Changes information for more details on this release.


  1. Download Speech Analyzer installer (EXE | 28 MB | MD5: 0cbf83e288dd061f22bc45576d339a21).
  2. Double-click SpeechAnalyzer.
  3. Follow the installer instructions.


Support from other software users may be available through the SIL Language Software Community. This community will be growing to become the major source of software support.


If you are unable to obtain support through individual software support pages or the SIL Language Software Community, or have a general question about SIL language software, please contact us.