Here are a few highlights from what I learned about dynamic signal processing in Chapter 14:
- The first commercially available compressor was released in the 1950s.
- Bill Putman was the designer of the first commercially-available audio compressor.
- Modern analog recording is a method of recording where signals are stored as a continual wave in or on the media, usually magnetic tape.
- In digital recording, sound signals are converted and stored as binary data.
- A compressor reduces dynamic range.
- An expander increases dynamic range.
- The threshold is the decibel point at which compression is intitiated.
- A compression ratio of 100:1 would be considered limiting.
- The ratio determines the amount of gain reduction of a compressor.
- The attack determines how quickly compression will initiate after the threshold is breached.
- The release determines how quickly gain reduction is reset after the signal drops back below the threshold.
- A De-Esser is used to remove sibilance.
- Multiband Compression involves processing one signal with different settings for frequency ranges present in the signal.
- Serial Compressoin implies that the output of one compressor is being fed into the input of another compressor.
- Parallel Compression implies that a signal is being split, and one half of the split signal is compressed separately using an aux send, and is then recombined with the original signal.