Apple Soundtrack Pro 3 - Manual (Page 514)

Audio Connectors, Cables, and Signal Formats
Different audio connectors and cables are suited for different purposes. They are available
for professional and consumer audio equipment, at a range of prices and levels of quality.
Audio connectors are often indicative of the kind of signal they transmit. However, there
are enough exceptions that it’s important to know what kind of audio signal you are
connecting, in addition to the connector type. An important distinction is whether an
audio connector carries a balanced or an unbalanced signal. When connecting
microphones and musical instruments to an audio interface or a mixer, make sure the
interface has the proper input jacks for the type of connectors and cables you plan to
use.
Analog Audio Connectors, Cables, and Signal Formats
The following is a cross-section of available industry-standard analog audio connectors,
cables, and signal formats.
1/8" Mini Connectors
These are very small, unbalanced audio connectors. Many computers have 1/8" mini
inputs and outputs at -10 dBV line level, and many portable audio devices such as CD
players, iPod digital music players, and MP3 players use these connectors for headphone
outputs. Portable MiniDisc and DAT recorders often use 1/8" mini connectors for
connecting microphones.
Mono miniplug connector
Stereo miniplug connector
Note: Some Macintosh computers and portable audio recorders also use a connector
that combines both a stereo miniplug and a 1/8" optical digital connection (see the
information about S/PDIF in
Digital Audio Connectors, Cables, and Signal Formats ) in a
single jack.
RCA Connectors
Most consumer equipment uses RCA connectors, which are unbalanced connectors that
usually handle –10 dbV (consumer) line levels. RCA connectors are used on consumer
audio equipment such as home stereo systems and videocassette recorders.
RCA connector
1/4" Audio Connectors
1/4" connectors (sometimes called phone plugs) are used on a wide variety of professional
and consumer musical equipment, including musical instruments and amplifiers, speakers,
and external effects devices.
514 Appendix C Working with Professional Video and Audio Equipment