Author: Unknown
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Today I finished working on another application. Stellarvox is an experiment in which I tried to expand the algorithm of the space impulse response (IR) generator, supplementing it with a set of various single pulses (very short IR), which are essentially filters in the impulse response sample for convolution reverb and form the timbre of the reverberation space. The result is very interesting virtual spaces with different sound characteristics.
To experiment with the sound of space and in order to make it somehow more unusual and unrealistic, I made it possible to add an additional signal with different frequency spectra to the generated IR sample and the ability to process this signal with various filters in which the frequency changes from the beginning to the end of the signal (length which corresponds to the reverberation time). This signal gives a very peculiar tail of reflections that are not tied to the space model itself, but are audibly felt as its continuation.
Well, in order to make this application completely experimental, I added the so-called “Schroeder reverb” algorithm, which is built on the principle of a series of delays with all-pass filters. This algorithm is good because it gives a fairly blurry tail of reflections for almost any source signal. Combined with the convolution reverb, it adds blur to the reflections tail and makes the reverberation space more saturated and vibrant, although even less reality. Also, when the inverted convolution sample mode is selected, the algorithmic reverb may produce early reflections before the convolution reverb begins to sound.
The goal of this project was not to make another virtual room simulator, but to create a generator of unusual, deep and rich spaces with a long reverberation time and a long reflections tail. The result is an interesting and quite unique application that is very well suited for adding spatial and background to sequences and arpeggios of various synths, including those with a predominant low-frequency spectrum in electronic music. But even more interesting is the sound of individual notes and sounds in which all transitions in space are clearly audible. This is great for ambient and experimental projects.