This market is found right at the heart of the commercial business district in central Rio. On the Tuesday lunchtime we visit, its bedlam: there are people everywhere.
The soundwalk heads down one of the main market alleyways. Not only do the shops play loud music to attract your attention, most also have sellers shouting streams of special offers into microphones. Additionally, there are loudspeakers strung up above the narrow streets, which play a constant barrage of yet more adverts.
It's like walking inside a TV shop where all the sets play different commercial breaks at once.
Even as we reach the main road and the recording ends, we still have on last trader's call ringing in our ears...