Thank you so much for your response. Unfortunately, I am still having trouble implementing you examples. Perhaps if I provide the code I am working with it will help? Let's say I want to add audio1.mp3 to the first scene, audio2.mp3 to the second scene, and audio3.mp3 to the third scene. How would you do it?
<krpano version="1.20" title="Virtual Tour">
<!-- flare_dir: var with the address of the lensflare folder -->
<krpano flare_dir="skin/lensflare" />
<include url="skin/lensflare/core.xml" />
<include url="skin/vtourskin.xml" />
<!-- customize skin settings: maps, gyro, webvr, thumbnails, tooltips, layout, design, ... -->
<skin_settings maps="true"
maps_type="google"
maps_bing_api_key=""
maps_google_api_key=""
maps_zoombuttons="false"
maps_loadonfirstuse="true"
gyro="true"
gyro_keeplookingdirection="false"
webvr="false"
webvr_keeplookingdirection="true"
webvr_prev_next_hotspots="true"
autotour="false"
littleplanetintro="false"
followmousecontrol="false"
title="false"
thumbs="true"
thumbs_width="120" thumbs_height="80" thumbs_padding="10" thumbs_crop="0|40|240|160"
thumbs_opened="false"
thumbs_text="false"
thumbs_dragging="true"
thumbs_onhoverscrolling="false"
thumbs_scrollbuttons="false"
thumbs_scrollindicator="false"
thumbs_loop="false"
tooltips_buttons="true"
tooltips_thumbs="false"
tooltips_hotspots="false"
tooltips_mapspots="false"
deeplinking="false"
loadscene_flags="MERGE"
loadscene_blend="OPENBLEND(0.5, 0.0, 0.75, 0.05, linear)"
loadscene_blend_prev="SLIDEBLEND(0.5, 180, 0.75, linear)"
loadscene_blend_next="SLIDEBLEND(0.5, 0, 0.75, linear)"
loadingtext="loading..."
layout_width="100%"
layout_maxwidth="814"
controlbar_width="-24"
controlbar_height="40"
controlbar_offset="20"
controlbar_offset_closed="-40"
controlbar_overlap.no-fractionalscaling="10"
controlbar_overlap.fractionalscaling="0"
design_skin_images="vtourskin_light2.png"
design_bgcolor="0x000000"
design_bgalpha="0.8"
design_bgborder="0"
design_bgroundedge="1"
design_bgshadow="0 4 10 0x000000 0.3"
design_thumbborder_bgborder="3 0xFFFFFF 1.0"
design_thumbborder_padding="2"
design_thumbborder_bgroundedge="0"
design_text_css="color:#FFFFFF; font-family:Arial;"
design_text_shadow="1"
/>
<!--
For an alternative skin design either change the <skin_settings> values
from above or optionally include one of the predefined designs from below.
-->
<!-- <include url="skin/vtourskin_design_flat_light.xml" /> -->
<!-- <include url="skin/vtourskin_design_glass.xml" /> -->
<!-- <include url="skin/vtourskin_design_ultra_light.xml" /> -->
<!-- <include url="skin/vtourskin_design_117.xml" /> -->
<!-- <include url="skin/vtourskin_design_117round.xml" /> -->
<!-- <include url="skin/vtourskin_design_black.xml" /> -->
<!-- startup action - load the first scene -->
<action name="startup" autorun="onstart">
if(startscene === null OR !scene[get(startscene)], copy(startscene,scene[0].name); );
loadscene(get(startscene), null, MERGE);
if(startactions !== null, startactions() );
</action>
<scene name="scene_004033_panorama" title="004033_panorama" onstart="" thumburl="panos/004033_panorama.tiles/thumb.jpg" lat="" lng="" heading="">
<view hlookat="0.0" vlookat="0.0" fovtype="MFOV" fov="120" maxpixelzoom="1.0" fovmin="70" fovmax="140" limitview="auto" />
<preview url="panos/004033_panorama.tiles/preview.jpg" />
<image>
<cube url="panos/004033_panorama.tiles/%s/l%l/%v/l%l_%s_%v_%h.jpg" multires="512,1024,2048,3840" />
</image>
</scene>
<scene name="scene_004083_panorama" title="004083_panorama" onstart="" thumburl="panos/004083_panorama.tiles/thumb.jpg" lat="" lng="" heading="" sound="meadow_ambience">
<view hlookat="0.0" vlookat="0.0" fovtype="MFOV" fov="120" maxpixelzoom="1.0" fovmin="70" fovmax="140" limitview="auto" />
<preview url="panos/004083_panorama.tiles/preview.jpg" />
<image>
<cube url="panos/004083_panorama.tiles/%s/l%l/%v/l%l_%s_%v_%h.jpg" multires="512,1024,2048,3840" />
</image>
</scene>
<scene name="scene_004108_panorama" title="004108_panorama" onstart="" thumburl="panos/004108_panorama.tiles/thumb.jpg" lat="" lng="" heading="">
<view hlookat="0.0" vlookat="0.0" fovtype="MFOV" fov="120" maxpixelzoom="1.0" fovmin="70" fovmax="140" limitview="auto" />
<preview url="panos/004108_panorama.tiles/preview.jpg" />
<image>
<cube url="panos/004108_panorama.tiles/%s/l%l/%v/l%l_%s_%v_%h.jpg" multires="512,1024,2048,3840" />
</image>
</scene>
<autorotate enabled="true"
waittime="1.0"
speed="2.0"
horizon="0.0"
tofov="120.0"
/>
<plugin name="soundinterface"
keep="true"
url.flash="plugins/soundinterface.swf"
url.html5="plugins/soundinterface.js"
preload="true"
rootpath="audio"
volume="1.0"
mute="false"
loops="0"
/>
</krpano>