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Figure 14.1 Click on thumbnail for full size image. |
Figure 14.1 shows an Interval boxes' properties being edited. In this case, we have set-up an interval of duration 0.5 (seconds), which is relative to the previous Sound. For example, if the first Sound box is played at 2 seconds from the start, the second Sound box will be played at 2.5 seconds from the start. It is quite normal when using the Kangas Sound Editor for a sound not to have finished when the next one starts playing.
We have also entered a Relative Pitch Numerator of 2, and denominator of 3, ie the fraction 2/3. This means that the second sound will be played at a pitch that is 2/3 of the first pitch, whatever that pitch happens to be. Those of you with a musical background may recognise this as a perfect fifth. Fractions with low numbers such as this often sound good together, whereas fractions with higher numbers are less likely to do so. This is why the program uses a separate numerator and denominator, rather than just have a 'relative pitch' field, where the number '0.66666666' would be more verbose, and more likely to suffer from rounding problems reducing the quality of the sounds.
A Relative Volume of 1.1 has been entered, meaning that, as the volume operator is multiply, the second sound will be played at a volume 1.1 times the volume of the first sound. So if the volume of the first sound was 5, the volume of the second sound would be 5.5, which can make an appreciable difference in volume. Our experience with this parameter has been to keep the change in volume (0.5 in this case) fairly small for best results. If there is too much volume difference as a result of this parameter having too large a value, then it is quite possible that some sounds will not be heard at all, as they are so quiet relative to the louder sounds. The Kangas Sound Editor always tries to accommodate the loudest sound, making other sounds quieter in order to do so. If the volume operator is add (the default), then a similar effect could be obtained by inputting 0.5 into the Relative Volume edit field (also with a start volume of 5). Using add has the advantage of a more consistent effect irrespective of the starting volume, whereas multiply will have a greater effect the greater the starting volume, and no effect at all if the starting volume is zero (e.g 0 * 1.1 = 0).