Voice comparison

Audio/Video Forensic & Restoration Associates –

2 Step Voice comparison process:

Step 1:

The Computer Based Spectrum Analysis:

  • Using our Digital Audio Workstation (D.A.W.) we will enhance and transcribe the “unknown” voice recording.
  • An “exemplar” sample will be recorded at our facility (Using our sister company Audiomatrix Studios)
    • This can be done either by phone or in person
  • We match the words from both the “unknown” and “exemplar” samples.
  • These matched words are then compared using the Computer Based Spectrum Analysis.
    • The result is a graphic print displaying two lines for each pair of word samples.
  • The sets of graphs are examined and compared.


Voice comparision graphs explained

Step 2:

Qualified Aural Listening:

  • With repeated listening to the comparison samples, a subjective but informed impression is reached based on the following factors of Speech and voice qualities:
    • Timbre/Tone
    • Accents
    • Gender
    • Age
    • Emphasis of words and phrases
    • Inflection
    • Cadence (How words and phrases are grouped together by the individual)
  • Our Associates have many years of experience listening to audio recordings, transcribing voices and performing voice analysis. This allows us to determine with a reasonable degree of certainty if the voices are:
    • Likely matches
    • Not likely matches
    • Inconclusive
Voice analysis final thoughts