Sample Rate
Sample Rate is the rate at which samples of an Analogue signal are taken to create a Digital image of that signal.

A Sampler is a unit capable of recording, storing and playing back audio samples.

This is a type of filter that affects all frequencies above or below a threshold frequency.

having, containing, or producing the sound of or a sound resembling that of the s or the “sh”, in “sash”.

Sine Wave
Sine is a curved, flowing wave known for its smooth sound.

Slide Guitar
Using a device other than fingers to press the strings on a traditional guitar, beer bottles, metal or glass cylinders over the finger for example. “Open tuning” is used a lot for this kind of thing. The true description is actually for a “Laptop Steel” guitar. One made for this purpose.

Society of Motion Picture and Television Engineers. SMPTE also refers to a common standard for measurement of Intermodulation distortion (IM) and a reference code for the identification of film or video frames. SMPTE code is often used for the synchronisation of two or more audio playback devices.

Longitudinal or Linear Time Code refers to SMPTE striped along the tape track and is common for tape machines.

Vertical Interval Time Code, a.k.a “vitsee”, means SMPTE timecode that is placed into the space between video frames. Once “burned in” between frames, it is called BITC or “bitsee”.

SMPTE Time Code
Frame edge lock for audio and video equipment. SMPTE is calculated in:


Solo (Mixing Console)
Many mixing consoles provide a feature that allows individual input tracks, groups or a combination of solo signals to be routed to the monitors without other signals AND without altering the main mix signal.

Solo (Song Section)
Solos can be played within a middle eight section, but modern solos can be played using the chords and a basic melody (for melodic based solos) of any of the sections of the song, however, a solo over the bridge or chorus chords is the most common.

A solo is a special song section designed to showcase an instrumentalist, or sometimes more than one instrumentalist. The solo section may use the verse chords, pre-chorus chords, chorus chords or bridge chords, or in blues-derived genres, a solo may be played over a standard backing chord progression.

For some pop songs, the solo performer echoes the same melodies previously sung in other sections of the song, or sometimes a solo instrumentalist will directly echo a phrase sung immediately before in a question-answer format.

In blues-derived or influenced pop songs, the solo performers may improvise a solo.

Song Form
Song Form is basically the structure of the song. There are a number of standard song forms. For example:
Strophic (chorus form)
Thirty-two bar
Twelve Bar Blues

Song Position Pointer (SPP)
Working in conjunction with Midi Clock, the SPP provides information about the current beat and measure used in a song or sequence. This allows the user to rewind, fast forward etc. a master device while remaining synchronised with a slave device.

Sony/Philips Digital Interface Format (S/PDIF)
S/PDIF is a digital recording format that allows the high-speed transfer of two channels of digital audio. S/PDIF conforms to the AES/EBU consumer standard.

This is the term applied to acoustic interference from unwanted source sounds.

Subtractive Synthesis
This type of synthesis takes a broadband signal, sometimes in conjunction with some form of periodic signal, and subtracts frequencies in order to leave the desired output signal.

Synthesizer (Synthesiser)
A synthesizer is an electronic music device that allows the control of the pitch, timing and tone in the generation of one or more source audio signals. Source audio signals can be those produced by a tone or waveform generator or based upon an audio sample.