A Door Into Spring
UnTwelve 2009 Compilation released
Posted 3 May 2009, 05:53
Quranic recitation and Tibetan Buddhist chant, combined and time-stretched with spectral processing.
This piece is made from two source recordings:
Both were subjected to time-stretching. The Fatiha recording was stretched, rather drastically, from its original length of 1:14 to 8:16. The Kabsumpa recording was originally 5:38 and was stretched to match the 8:16 length. The only other processing was to use a technique called spectral smoothing, which has the effect of “smearing” the sound. Both tracks are at their original pitch, and were not processed in any other way — no filtering, no added reverb — other than to raise the amplitude of the Tibetan chant so that the levels of the tracks would better match. Neither track was edited in any way, except to remove a small amount of silence at the end of the Quranic recitation.
The bird song is part of the Kabsumpa recording.
For fellow Csound geeks, I used the PVS (phase vocoder) opcodes to do the time-stretching and spectral smoothing.
I am not making the source files available for download, as I don’t have the rights, but my Csound code is downloadable as usual for those who are interested.
Copyright 2009 by Dave Seidel, some rights reserved.
Invocation by Dave Seidel is licensed under a Creative Commons Attribution-Noncommercial 3.0 Unported License.