Walkie-talkie and megaphone voice effect

A tool for a walkie-talkie, megaphone and phone voice effect: upload a recording or a video, or talk live into the microphone. Six sounds — with a push-to-talk click, a roger beep and a PA chime.

How to make a voice sound like a radio

Give it a voice

A file, a video, a mic recording or live talk.

Pick a sound

Walkie-talkie, megaphone, phone, station, pilot, old radio.

Download the file or video

MP3, WAV, FLAC — or the same video with the new sound.

Make any voice sound like a radio, a bullhorn or a phone line

🎤

This tool records and processes audio directly in your browser using the microphone. You can capture voice, music, or any sound and download the result instantly.

For the interactive version with real-time preview, enable JavaScript in your browser.

Drop audio or video here

MP4, WEBM, MOV, MP3, WAV, M4A, OGG, FLAC, AAC, M4B, WMA, AIFF, OPUS, CAF, MKV, AVI, WMV, FLV, M4V, 3GP, TS, MTS, M2TS, VOB, MPG, MPEG, OGV ·

A 10-second announcement — switch sounds and hear the difference.

Sound

A bullhorn in the street: metallic horn resonance and a short echo.

Adjust

Drive Grit: compression and amplifier overdrive.

Band Frequency width: from a narrow radio to a wide loudspeaker.

Horn Metallic resonance of the horn.

Echo Reflections off walls — a short street echo.

Hall A reverberant room around the loudspeaker.

Static Radio static, receiver crackle or cabin hum — depending on the sound.

Volume Output level; above 100 % the sound presses harder against the ceiling.

Features

Sounds tuned to real channels

Phone cuts the 300–3400 Hz band of a phone line, walkie-talkie 500–2900 Hz with a hard transmitter limiter, megaphone adds the metallic resonance of a horn.

PTT click, roger beep and chime

The radio key clicks before the phrase, a two-tone beep and the squelch hiss follow it, a station chime or a cabin “ding-dong” comes before an announcement.

Live, like a real walkie-talkie

Hold the button and talk into the speaker or a Bluetooth speaker; a short tap keeps the channel open. In Chrome and Edge the sound can go to another output device.

A video stays a video

Upload a clip and get the same clip back with the new sound; MP4 and MOV pictures are not re-encoded.

You hear exactly what you download

The preview and the file come out of the same processing chain, and peaks stay under −0.7 dB — no crackle.

A batch with one setting

Find the sound on one file and apply it to several at once — every line of a game character, for example.

Why Tembrica

The preview and the downloaded file sound the same: both come from one processing chain, not two different ones. The PTT click and roger beep sound like a real radio, a video keeps its picture, and the “Live” tab turns a phone into a megaphone.

FAQ

How do I make my voice sound like a walkie-talkie?

Choose the “Walkie-talkie” sound: the band narrows to 500–2900 Hz, the voice hits the transmitter limiter, and the PTT click, roger beep and squelch hiss sound around the phrase. Turn up “Static” for radio noise and “Drive” for grit.

Can I talk live, like into a real megaphone?

Yes, in the “Live” tab. Hold the button and talk — the sound goes to the device speaker or to the output you chose; a short tap keeps the channel open. If the phone whistles, move it away from your mouth or connect a speaker: the mic hears its own speaker.

How do I use the radio effect in Discord or OBS?

A browser can’t replace the microphone for other apps. The workaround: install a virtual audio cable (VB-CABLE, for example), choose it in the “Sound output” field of the “Live” tab — it exists in Chrome and Edge — and set that cable as the microphone in Discord or OBS.

Is the picture kept when I upload a video?

Yes. With the “Video” format only the sound track is replaced: MP4 and MOV are assembled without re-encoding the picture, WebM and other containers by copying the video stream. You can also download just the sound — MP3, WAV and other formats.

Why is the file longer than the original?

The chime and the PTT click play before the voice, the roger beep and the squelch after it, plus the tail of the echo and the hall. Switch them off in the “Adjust” panel if you need the exact length; a video always keeps its length.

💡 Want us to improve this tool just for you?

We can! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

How do you rate this tool?

5 (1 rating)

Thank you for your rating!

Change my rating

Want to leave a comment?

Want to share more? Leave a comment!

Thank you! Your comment will appear after moderation.

Published 26 Feb 2026 Updated 28 May 2026 Author: The Supreme