This attribute accepts one or two values, depending on the values you want to assign to the pause-before and pause-after settings. A single value of the pause attribute is applied to both pause-before and pause-after. When two values are supplied, the first is assigned to pause-before; the second is assigned to pause-after.

Values for time are floating-point numbers followed by either the ms (milliseconds) or s (seconds) unit identifier. These settings are therefore absolute durations for pauses. Values for percentage are inversely proportional to the words-per-minute values of the speech-rate attribute setting. Because the speech-rate controls how long it takes for a single word (on average), a pause setting of 100% means that a pause has the same duration as a single word; a setting of 50% would be a pause of one-half the duration of speaking a single word.

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