Waveform Plot

The waveform plot displays a time-domain representation of the audio signal. The horizontal axis represents time while the vertical axis represents the relative sound pressure level.

The horizontal ruler indicates time as measured from the beginning of the recording in seconds. Longer recordings will show minutes and seconds in MM:SS format, and still longer recordings will show hours, minutes and seconds in HH:MM:SS format.

Song Scope can display the waveform plot in one of three different ways as follows:

Linear Scale: The linear scale is displayed when a sound file is first opened and shows the relative sound pressure levels as represented by the 16-bit audio stream. The values are between -32768 and +32767.
Logarithmic Scale: The log scale shows the relative sound pressure levels in decibels which is 20 log₁₀(|x|).
Logarithmic Scale with Signal Detection: The log scale with signal detection shows the same relative sound pressure level in decibels as above, but also color codes the results of Song Scope's signal detection algorithm. Different colors are used to show syllables, inter-syllable gaps, and silent intervals between vocalizations. For more information, see Viewing Song Scope Signal Detection

You can move the mouse pointer over the waveform plot to view the corresponding time and relative sound pressure levels as shown in the status bar at the bottom of the Song Scope window.

You can also hold down the left mouse button while moving the mouse to view the difference in time and relative sound pressure levels in the status bar. When the left mouse button is released, the time portion of the signal will be selected.

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