Audio Compression Basics
Compressors and limiters are specialized amplifiers used to reduce dynamic range — the span between the softest and loudest sounds. The use of compressors can make recordings and live mixes sound more polished by controlling maximum levels and maintaining higher average loudness. Additionally, many compressors — both hardware and software — will have a signature sound that can be used to inject wonderful coloration and tone into otherwise lifeless tracks.
Studio Monitor Placement — Finding the “Sweet Spot”
Of all the components that make up your studio environment, the two most important for producing high-quality mixes have to be, 1) your ears and 2) your near-field monitors. More specifically, the proper placement of these key components within your room will make all the difference in achieving accurate mixes that will sound good on the widest range of systems.
Stereo Miking Techniques for Recording Acoustic Guitar
If you ask a handful of engineers how they approach recording acoustic guitars, you’re likely to get at least a handful of different answers (provided they’re willing to divulge). This is because so many factors play a part in capturing an acoustic guitar: the room, playing style, body size, recording environment, the player’s skill level, etc. All things considered however, most engineers will tell you the real secret to recording acoustic guitar is simple: stereo miking.
Total Harmonic Distortion
THD stands for Total Harmonic Distortion and can be used to estimate the degree to which a system is nonlinear. A THD measurement can be made by applying a sine wave as an input to a system, and measuring the total energy which appears at the output of the system at harmonics of the input frequency.
Allpass filters are filters that have what we call a flat frequency response; they neither emphasize nor de-emphasize any part of the spectrum. Rather, they displace signals in time as a function of frequency. The time displacement accomplished by an allpass filter is specified by its phase response.