If you want to give your podcasts a professional appearance, you need a good quality microphone. Forget about the tiny hole on your portable smart-whatever device, there’s a world of difference between consumer and professional-grade microphones, and the signal processing circuits that go along with them. Once you have a good microphone and preamp, you then need to digitize the signal using an Analog-to-Digital (A/D) convertor, and get that digital signal into your PC. The Spark Digital from Blue Microphones is an all-in-one solution for high quality digital audio production. All the signal processing is done inside the body of the microphone, and the interface to your computer is through one of several available serial connections. The Spark Digital supports USB 1.1/2.0, the relatively new Lightning connection, or the older Apple 30-pin interface, through the use of separate cables for each connection type. Benchmark Reviews has an audio side to it, but we’ve mostly concentrated on the output side of the equation – headphones and speakers. Some of our readers are content creators though, so it’s high time we paid some attention to the beginning of the signal chain.