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Preload Audio
When timing is critical, you may want to
pre-load your audio.
In this example we pre-load an audio, then play it at a later time with minimal latency. Note: this optimization is not typically needed.
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To pre-load an audio track in order to achieve a faster effect when calling the
sayAudio() command do the following:
- Call the loadAudio() command: loadAudio('audioLoaded')
- Use the event callback function vh_audioLoaded(args) if you need to know when audio pre-loading is completed. This function returns the name of the pre-loaded audio, which can be useful in cases where multiple pre-loading calls are made.
In this example, a JS alert is displayed when pre-loading is done.
- Call the sayAudio() function normally to play the audio at any time. If the audio was previously pre-loaded, it will play without delay. Try it now: sayAudio('audioLoaded')
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