This sound frequency meter circuit is simple to build and can be constructed in a portable format. In can measure frequencies with a minimum level of 10 mVrms and a maximum frequency of up to 100kHz.

In this tutorial I'm going to walk you through a couple of the new features in Adobe Audition Creative Cloud (CC). I imagine that lot of you have probably updated, while some of you are still on the ...

Figure 4. A snapshot, in time, of two complex numbers whose exponents, and thus their phase angles, change with time. The notion of negative frequency is often troubling to engineers who've spent so ...