SOUND ON SOUND
A form of adapter cable that passively splits the output of a source to feed two or more destinations. Y-leads may also be used in unbalanced console insert points, in which case a stereo jack plug at one end of the lead is split into two monos at the other for separate send and return connections. A Y-lead must never be used to combine signals.
The point at which a signal waveform crosses from being positive to negative or vice versa.
Audible steps that can occur when a parameter is being varied in a digital audio processor.
A form of electrical filter which is designed to mimic the relative sensitivity of the human ear to different frequencies at high sound pressure levels (notionally 100 Phons or about 87dBA SPL). Essentially, the filter rolls-off the low frequencies below about 20Hz and the highs above about 10kHz. This filtering is often used when making measurements of high-level sounds, such as when calibrating loudspeaker reference levels. (See also A-Weighting and K-Weighting.)
A form of electrical filter which is designed to mimic the relative sensitivity of the human ear to different frequencies in terms of pereceived loudness. It is broadly similar to the A-Weighting curve, except that it adds a shelf boost above 2kHz. This filter is an integral element of the ITU-R BS.1770 loudness measurement protocol. (See also A-Weighting and C-Weighting.)
An electrical filter which used when taking audio measurements of equipment, and designed to mimic the relative insensitivity of the human ear to high and low frequencies at low sound pressure levels (notionally 40 Phons or about 30dBA SPL). Essentially, the filter rolls-off the low frequencies below about 700Hz and the highs above about 10kHz. This form of weighting filter is often used when making measurements of low-level sounds, like the noise floor of a device. (See also C-Weighting and K-Weighting.)
An AES standard which defines the use and pin-outs of 25-pin D-sub connectors for eight-channel balanced analogue audio travelling in a single direction in or out of a device, and an alternative bi-directional eight-channel digital interfacing (four AES3 threes in each direction). It conforms fully with the established Tascam interface standard. More info...
The deciBel (dB) is a method of expressing the ratio between two quantities in a logarithmic fashion. Used when describing audio signal amplitudes because the logarithmic nature matches the logarithmic character of the human sense of hearing. (Detailed explanation available when title link clicked)
A form of audio-over-IP (layer 3) created by Australian company Audinate in 2006. DANTE is an abbreviation of 'Digital Audio Network Through Ethernet'.
