Radio takes away everything you can lean on in a TV interview: the visual, the body language, the ability to nod along while you think. The listener has only your voice, and they form an impression of you from it in the first ten seconds. A live radio hit is also faster and less forgiving than TV, because on radio a two-second pause sounds like a technical failure. Preparing means preparing your voice and your pacing, not just your points.
Know the format
Confirm before you go on: Is it live or recorded? How long is the segment (often shorter than you expect: three to six minutes)? Are there call-in listeners? Is another guest on with an opposing view? Each of these changes how you prepare. A live debate segment needs short, punchy answers and a decision about which points you will not let go unchallenged. A recorded feature interview is closer to a print conversation.
Shorten everything
The single most useful adjustment for radio is length. Take your prepared answers and cut them to 15 to 25 seconds each. On TV a 40-second answer is fine; on radio the host will talk over the back half of it, because they are managing a clock and dead air is their enemy. A tight answer that lands fully beats a complete one that gets cut.
Prepare your voice
Without a camera, people default to a flat, conversational tone that sounds low-energy on air. Counter it deliberately:
- Speak out loud for five minutes beforehand so your voice is warm, not cold from silence.
- Add more pitch variation and energy than feels natural. What feels like “a bit much” in the room usually sounds normal and engaged on air.
- Smile while you talk. It changes the sound of your voice and listeners can hear it.
- Sit or stand up straight. Slouching compresses your breathing and flattens your delivery.
Fix the technical setup
For a remote or phone hit, sound quality is part of the impression:
- Use a wired headset or a proper microphone. Laptop speakers plus built-in mic sounds like you are in a tunnel.
- Pick a small room with soft surfaces. A walk-in closet full of clothes is a genuinely good radio booth.
- Silence every notification on every device in the room.
- Keep water nearby, but on the floor or a coaster, not where it will clink against the desk near the mic.
- Close the door and tell people you cannot be interrupted for the next 20 minutes.
Keep a cheat sheet
One page: your three messages, your key numbers, and the two or three questions you most want to be ready for. In note form, not full sentences, because reading aloud is audible and sounds wooden. The listener cannot see you check it, so use it freely to stay on track.
Frequently asked questions
How is a radio interview different from a TV interview?
There are no visual cues, so the listener judges you entirely on how you sound: pace, energy, warmth, and clarity. There is also usually no edit on a live segment, and hosts move faster because dead air is worse on radio than a pause is on TV.
How long are radio answers?
Shorter than you think. A live radio segment might be three to six minutes total. Aim for answers of 15 to 25 seconds; anything longer and the host will cut in, and the listener has lost the thread.
What is the biggest radio-specific mistake?
Speaking in a flat, low-energy voice because there is no camera to perform for. Audio strips out body language, so you have to put more energy into your voice than feels natural to sound engaged rather than bored.
How do I prepare for a phone or remote radio hit technically?
Use a wired headset or a dedicated mic, not laptop speakers and the built-in mic. Find a small, soft room (a closet with clothes works) to kill echo, silence every notification, and have water within reach but off the desk so it does not clink.
Can I use notes on radio?
Yes, and you should: your three messages and key numbers on one page. The listener cannot see you glance at it. Do not read full sentences, though, because reading aloud is audible and sounds stilted.
Prepping for an audio interview? Press Prep runs a voice mock you can do out loud and scores your answers on length and clarity. See how to be a good podcast guest or the full preparation checklist.