"vocal modulation" is a correct and usable phrase in written English.
It is typically used to describe someone's tone or inflection when speaking. For example, "The teacher's vocal modulation was so pleasant to listen to that all the students paid close attention."
One thing that typography cannot adequately convey is vocal modulation.
Instead of using vocal modulation to alienate the listener and create distance, Buxton uses it to heighten the emotions at the centre of certain Basement Jaxx songs.
Lou Taylor Pucci's captivating portrait of Luke rests on a foundation of vocal modulation, careful phrasing, practiced body language, and the kind of simple goals that make most people around him seem horrifyingly petty and materialistic.
Ms. Wei, depicting the eighth-century consort Yang Yu-huan attended by eunuchs and drowning her sorrows after a snub from her emperor, Xuan-zong, was exquisite in her subtle bobbing and weaving, with vocal modulations to match.
Vocal modulations characterize many styles of singing.
Because the audio portion of one video was embedded in the PowerPoint presentation, the speech content, vocal tone, and vocal modulations were identical for both the experimental and control videotapes.
The "chord" over the drone is generally C major, but some changes to B flat major result from vocal modulations, as well as orchestral and guitar tape loops.
If emotional vocal modulations become too dominant they may interfere with linguistic production and communication may break down.
Vocal tract modulation during these gaps should be as simple as possible, because it is inaudible and complex modulation would thus serve no purpose for communication.
These rumbles exhibited an upward shift in the second formant location, which implies active vocal tract modulation, compared to rumbles made in response to white noise playbacks.
Voiced sounds are often complex and idiosyncratic to each species, such that methods to study them may not apply well across species, while vocal tract modulation during silent intervals may afford metrics of vocal performance applicable to species with diverse songs.
