technical question, advertising 

I'm listening to a podcast from the BBC, which says "this podcast is supported by advertising outside of the UK" and then plays an ad.

Except the ads have all been specifically for Australia. I assume they're not just spamming all listeners with ads for Australian banks, but then my question is this:

How do they know to send Australian ads to my podcatcher?

How do they insert specialised advertising part-way into an mp3 file?

technical question, advertising 

@lizardsquid Is the podcast played via a downloaded mp3 file or through a particular bit of software like an app or something for the bbc? If it's the former, I suppose it's possible that there could be set "ad break" sections in the mp3, and the page uses advertising algorithms to select specific pre-created ads for the downloader's country/"interests" etc, then inserts the relevant audio into those breaks.

technical question, advertising 

@lizardsquid if it's the latter, then the easy explaination is that the player/app literally pauses the podcast to deliver an ad at specific "ad break" markers, plays the ad, then resumes the podcast much like a youtube ad does or whatever.

Disclaimer, I am in no way technical or knowledgeable about such topics I'm just... guessing here ^^;

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technical question, advertising 

@Nine the podcast is played via a downloaded mp3 file. As I discovered after some research: the ad is spliced into the file as it's being downloaded, and the ads are chosen based on Algorithms™

technical question, advertising 

@lizardsquid oh dang I was right with my total guess? :O

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