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9.2. FM Receiver

There are a couple of different ways to capture FM transmissions. The first is to connect your stereo to your sound card's line-in port. This doesn't require the purchase of a radio card, and can be used with FM, AM, or satellite radio, or with any other kind of audio that your stereo can output. You'll get the best sound quality possible, as standalone stereo equipment is optimized for sound quality. On the downside, this method is very complex because you have to create a way for the computer to control the stereo. Unless you want to leave the stereo turned on and set to the same station at all times, the computer will need to be able to turn the radio on and tune it to a particular station. You could accomplish this with an IR blaster, but that would add another layer of complexity and some additional cost.

Adding an IR blaster is described in Chapter 6. You can use the software and scripts in this project with an external stereo by replacing the lines in the script that call the fm tool with commands that send IR signals to set your radio station.



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