Hi Chris.
Since we don't know exactly what the "vocal crispness" you are looking for is exactly, it's difficult to say precisely what you should do. Most of the time, the word "crisp" suggests a "brighter" sound by increasing the higher frequencies - If that's what you are looking for, you should use one of the equalizers to increase the higher frequencies, and/or perhaps reduce some of the lower frequencies. If that's not what you are looking to do, please give us more insight into what kind of sound you are trying to achieve.
Travis
VoiceOver Guy and Entertainment Technology Enthusiast
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www.VOTalent.com]