Biomedical Engineering Reference
In-Depth Information
Figure 4-7.
Speech with changing modulation depth for the phrase, “Her pluck and grit have writ her name in crimson
flame.” the noise floor is represented by a straight black line with constant intensity level of 52 dB and little to no variability.
the speech phrase, shown as areas of gray and black, reveals the constantly varying modulation depth of peak and valleys
between 52 and 70 dB HL.
