A portion of an audio signal is identified corresponding to a spoken word and its phonemes. One such method includes: displaying a first icon corresponding to a multi-source measurement, displaying waveforms, visually associating the first icon with at least one of the waveforms responsive to user input, and performing a multi-source measurement related to the waveforms. When the slope of the road grade encountered by a vehicle changes, the transmission shift points may be altered to provide better vehicle performance.