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Linear (or Longitudinal) Timecode (LTC) is an encoding of SMPTE timecode data in an audio signal, as defined in SMPTE 12M specification.The audio signal is commonly recorded on a VTR track or other storage media.
Audio signal processing is a subfield of signal processing that is concerned with the electronic manipulation of audio signals.Audio signals are electronic representations of sound waves—longitudinal waves which travel through air, consisting of compressions and rarefactions.
Using this technique, the audio data is stored as a sequence of fixed amplitude (i.e. 1-bit) values at a sample rate of 2.884 MHz, which is 64 times the 44.1 kHz sample rate used by CD. At any point in time, the amplitude of the original analog signal is represented by the density of 1's or 0's in the data stream.
top: Software instruments, and bottom: Software effect processors on Cubase 6. A software effect processor is a computer program that alters the sound from a digital source through audio signal processing in real time. It is a digital analog of hardware effects processors. It is an integral part of audio editing software, such as in Adobe ...
An analog signal (in red) encoded to 4-bit PCM digital samples (in blue); the bit depth is four, so each sample's amplitude is one of 16 possible values (16 = 2 4). In digital audio using pulse-code modulation (PCM), bit depth is the number of bits of information in each sample, and it directly corresponds to the resolution of each sample.
Sound editing functions: cut, copy, paste, delete, insert, silence, auto-trim and more; Audio effects: amplify, normalize, equalize, envelope, reverb, echo, reverse and many more with VST plugin compatibility; Batch processing allows users to apply effects and/or convert thousands of files as a single function
Sound Forge: Magix: Proprietary: Yes Discontinued (last version: 3) No No No No Soundbooth: Adobe Systems: Proprietary: Yes Yes No No No No Sound Studio: Felt Tip Inc. Proprietary: No Yes No No No No SoX: Chris Bagwell, et al. GNU GPL: Yes Yes No Yes Yes No SpectraLayers: Steinberg: Proprietary: Yes Yes No No No No Sweep: Conrad Parker GNU GPL ...
Delay is an audio signal processing technique that records an input signal to a storage medium and then plays it back after a period of time. When the delayed playback is mixed with the live audio, it creates an echo-like effect, whereby the original audio is heard followed by the delayed audio.