no, touch trigger problem is only with music files NOT SOUNDS.
see manual Scirra:
Safari on iOS and Chrome for Android share a limitation in playing music. While sound effects can be played at any time, music is only allowed to start playing when the user touches the screen. This is a limitation in the browsers themselves. As a result, if you play music on the start of layout, you may find in these browsers it does not actually start until the next touch.
for this reason i suggest to try move musics on sound folder and preload sound on project settings