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→Tone Controls
=== Tone Controls ===
Both the Delay and Reverb blocks feature Frequency and Bandwidth settings that affect the frequency response of the blocks. The Bandwidth control is essentially a Q control, narrowing the range of frequencies allowed to pass through as you turn it higher and higher. At 0, it is doing nothing. At max, it is only allowing a very, very narrow range of frequencies through.
''In OS 4.0, these controls are switched to high-pass/low-pass filters with configurable frequencies and 2 possible "slopes" for delay effects. These are easier to utilize than the bandwidth/frequency paradigm, but the filters themselves still operate as described below.''
These controls function slightly differently in the Delay block vs. the Reverb block. Reverb's can be considered a filter on the wet part of the block's output after all processing. When set to 100% mix, it is the same thing as placing an EQ after the reverb. The Delay controls operate inside the delay's feedback loop. This means that as the same segment of audio repeats over and over, it is filtered more and more each iteration.
This is similar to the Reverb's Dampening control, which darkens the tone of the wet reverb as it decays based upon its Time setting. However, while Dampening can only darken the wet signal over time, the Delay's tone controls can brighten ''or'' darken the signal over time.
I find that the most natural sounding delay and reverb tend to darken the tone over time, as well as apply greater reverb to the delay trails than to the dry signal. Thus, I often use the Delay's Bandwidth and Frequency controls set to slightly darken the trails, as well as use the Reverb's Dampening. I usually set Del/Reverb Balance about 30% right of center. I use the Reverb's Bandwidth/Frequency for any final tonal adjustments.
However, there are numerous unique applications for the interaction of all these controls I attempt to explore below...