RankDude
Checker · AI girlfriend

Voice check

Every answer the call recorder captured is cut out and measured: sound quality by a speech-quality model, how much the pitch rises and falls, the pace, the pauses, and repeated phrases. The figures give a provisional grade that I confirm or change by listening.

When it runs
After every recorded call
Used in
16 reviews
Runs on
The call recordings, then my ears

What the voice check is

Natural is a judgement, but the parts of it can be measured, and measuring them first stops the grade from drifting with my mood. The check scores each answer on sound quality, intonation and delivery, combines them into a provisional grade, and the listening then confirms or overrides it. Accent is never part of the grade.

How it works

  1. It takes the companion's side of each call recording and cuts it into separate answers.
  2. Each answer is transcribed, so a garbled or cut-off answer is visible, and its length and words per second are counted.
  3. A speech-quality model rates the sound of each answer: the voice itself, the background and the overall impression, on a one-to-five scale used in speech research.
  4. A pitch tracker measures how much the voice rises and falls, which is what makes a voice sound spoken rather than read.
  5. Loudness variation, pauses inside the answer and repeated three-word phrases are counted.
  6. A fixed rule turns the pitch spread into an intonation score, docks the delivery score for an odd pace, repetition or a long pause, and combines sound quality, intonation and delivery into a provisional grade.
  7. I listen to the answers and keep or change the grade; the review says which.

What it records

Per answer
Its file and timing, the transcript, the three sound-quality figures, the pitch mean, spread and range, loudness variation, pauses, words per second, repeated phrases, and the provisional grade.

What it cannot catch

  • The figures describe the sound, not whether the emotion fits the words; that part is listening only.
  • Very short answers transcribe poorly and give weak pitch figures, so apps that answer in a few words are graded more by ear.
  • Most voice grades are marked provisional until more calls are recorded.

Where it was used

Every published review that ran this checker, with the figure it produced there, read from the review’s own data. Each figure opens the test results behind it.

Review

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Written by Miles Foster, Owner and tester, RankDude. How RankDude tests and grades is on the methodology page.