Does it really block ads?
It avoids the ad you get when connecting to a stream, because your favorites are already connected. Ads in the middle of the broadcast are still there, but ZapperRadio recognizes them and can zap to another favorite that plays music until the break is over.
How much bandwidth does it use?
Each favorite is a continuous stream of roughly 64 to 320 kbit/s. Twenty favorites usually add up to about 2 to 4 Mbit/s, at most a little over 6. Stations you only browse are played on demand and stopped when you switch.
How does it know what is music and what is speech?
With AI that runs on your own PC: YAMNet, Google's open-source neural network for recognizing sounds, trained on about two million labelled clips. It listens to each stream every 5 seconds, in about 20 ms. Nothing is sent to the cloud: it uses the audio that is streamed anyway, so there is no account and no extra bandwidth.
Which languages does it speak?
30 of them, all listed in the section above, from English and Chinese to Arabic and Hindi. ZapperRadio starts in the first language of your Windows language list that it speaks, and in English when none of them is. You can pick another one in the settings. The installer itself is still English.
Where do the stations come from?
The station list has about 52,000 stations and is stored locally, so it also works offline. Popularity data comes from radio-browser.info.
Why does Windows warn me about the installer?
The installer from GitHub is not digitally signed, which makes SmartScreen cautious about any new app. Get ZapperRadio from the Microsoft Store to skip the warning, or choose More info and then Run anyway. The complete source code is on GitHub if you want to check what you are installing.
Is it free?
Yes. ZapperRadio is open source under the MIT license.