Formats
Voice interviews vs one-way video
Both replace the phone screen and let a candidate answer in their own time. What each one asks of the candidate is not the same.
One asks for a recording. The other asks a question and listens to the answer.
What actually differs
- What they do
- Voice interviewHas a conversation and answers what is asked next.
- One-way videoRecords themselves answering questions set in advance.
- What they need
- Voice interviewA device, and somewhere they can talk.
- One-way videoA camera, light, a quiet room, a few uninterrupted minutes.
- What it captures
- Voice interviewHow someone reasons aloud, and what they do when pressed.
- One-way videoPresentation, delivery, and how someone comes across on camera.
- What it misses
- Voice interviewAnything you have to see. A portfolio, a demo, presence.
- One-way videoThe follow-up. A fixed prompt cannot ask what you meant.
- What you do
- Voice interviewReads a scorecard, then the quote behind it.
- One-way videoWatches the recordings, or reads a summary of them.
Where the review time goes
Two hundred applicants at three minutes of video each is ten hours of watching.
A summary is faster than a recording. It is also not the words the candidate said.
Kira returns a band, a 1–5 per criterion with a written anchor, and one or two timestamped quotes.
Nothing reaches the scorecard that Kira cannot point back to in the transcript.
What a conversation buys
The follow-up
A thin answer gets one more question, right then, while the candidate is still on the line.
Evidence you can forward
Timestamped quotes against each criterion, not a link to a recording somebody else has to watch.
A lower bar to clear
No camera, no lighting, no quiet room, no video bandwidth. Someone on a break can take part.
In a field study of 70,884 call-center applicants, 78% chose an AI voice interviewer over a human one. It also measured 18% more starts and 17% better one-month retention.
PSG Global Solutions, reported by ERE.
When a one-way video interview fits better
- The role has to be seen. Sales, presenting, anything performed on camera.
- You need to see something specific: a portfolio, a demo, a workspace.
- Your panel wants to review video responses together. Kira provides audio recordings and transcripts, without video.
- You already score recorded answers against a rubric, and it works. That is not a process worth replacing.
- You want candidates to re-record. Spark Hire and Willo both allow retakes.
Both formats are async, and plenty of teams run both. Kira does the talking half.
If it is, our guide to one-way video interview software compares the platforms that do it.
Choosing voice over video was deliberate: why we chose voice, and what we won’t build.
Comparing specific tools? Kira-AI vs Spark Hire · Kira-AI vs Willo
The trial is 25 interviews, no card.
Vendor details checked on 8 August 2026 against sparkhire.com and willo.video.