Book excerpt: A handy source of essential data that every sound technician needs. Whether you are a professional sound engineer, responsible for broadcast or studio recording, or a student on a music technology or sound recording course, you will find this book authoritative and easily accessible. Adapted from the comprehensive volume, the Audio Engineer's Reference Book (now in its second edition), this pocket-sized reference has been fully revised to cover the very latest technology connected with sound: Noise measurement Acoustics Microphones Loudspeakers Mixing equipment CDs, DAT, MIDI, MiniDisc Telephony ISDN Digital interfacing Ultrasonics This second edition also features: Substantial revisions of chapters on radio microphone frequencies, digital audio tape, and audio measurements. An extended list of further reading.