NICAM sound

[catdog]

Sorry for the delay on updates - schematic now attached!

I ran into an issue that the default settings for the STV8216 were all fine - except the outputs are muted on startup! The tivo I2C bus *should* have been capable of turning the mute off, but for some unknown reason it refuses to communicate with devices at normally unused addresses. I now have a PIC micro which turns the mute off instead, which is a simple workaround for the problem.

The prototype has been running for a month or two now without any issues and sounds much better/clearer than the mono sound from the tuner.

The circuit is shown in the photo to give an idea of what is required to build your own, it's a bit rough, but remember that it is a prototype (and it works)!