I have several audio-narrated tours of my pano. When the user selects one, I would like to first load the audio file, and then begin the series of LookTo() actions, so that the movements and audio are synced.

I am looking for a command to wait for the audio to load before continuing (similar to the wait(load); for the panorama). Ideally I would display a message that says "audio loading..." while this loop is running.

I've tried a few set of solutions without success. seeksound() seems to be unreliable for some reason. preloadsound() doesn't wait for load before continuing.

Right now, I simply preload all of the sounds when the website first loads, which works, but it's a heavy delay of several mb right at the beginning:

https://1871.Chicago00.org (the audio tours are under 'STORIES' in the left menu)

Any suggestions?

Much thanks.

--------------------------------------UPDATE

I have an answer to my own question. Though I'm not sure it's a very efficient way to do it.

This seems to work:




createsound(mySound, audioFile);
playsound(mySound);

set(layer[soundLoadingText_text].visible, true);

txtadd(layer[soundLoadingText_text].html, 'Loading sound', '...');

set(soundDuration, get(sound[mySound].duration));
asyncloop(soundDuration LE 0,
wait(0.25);
set(soundDuration, get(sound[mySound].duration));,

set(layer[soundLoadingText_text].visible, false);
startPlayingMyLooktoSequence();
);