![]() The resulting display shows bright bands of fundamental frequencies, an ever-darkening ladder of harmonic bands extending above those fundamentals, and speckled, chaotic areas that represent un-pitched noise and background. To achieve this, SpectraLayers shows time in the X-axis, frequency in the Y-axis, and represents the amplitude of those frequencies as changes in brightness and/or colour, depending on the display mode. So, to represent how the different frequencies in a sound change and interact over time, a spectrogram of the sort used by SpectraLayers has to show all three dimensions of information – time, frequency and amplitude – in a two-dimensional graph. A spectrum analyser also shows only two dimensions, frequency and amplitude, but has no way to represent time. ![]() The standard waveform graphs we’re familiar with show only two dimensions of this information: time and the overall amplitude of the signal. Most sounds, with the exception of sine waves, consist of different frequencies that vary in amplitude over time. The software also now supports sample rates of up to 384kHz, so will happily integrate into high-end music and film production workflows.SpectraLayers’ Spectrograms The ARA2 support has been enhanced in this version so that a single DAW project can now host multiple SpectraLayers projects in contrast to previous versions which would add DAW tracks as layers in a single SpectraLayers project. The program can run in standalone mode or as an ARA2 plugin that integrates closely with your DAW, assuming your DAW supports ARA2 – most now do. SpectraLayers Pro 8 is Steinberg’s third iteration of the software (it’s changed hands a few times). This makes spectral editors well-suited to corrective tasks, although they are also powerful sound design tools, and so these are the use-cases that Steinberg has focused on with its latest version of SpectraLayers. These allow us to see the constantly-fluctuating frequencies within a passage of audio and, more importantly, they allow us to edit specific frequencies and frequency ranges. They say nothing about the frequency content within a sound, though. The audio waveforms shown in DAWs and other audio tools map amplitude changes over time, which is easy for a computer to create and easy for a human to read. Steinberg SpectraLayers Pro 8: What is it? ![]()
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