Complex sentence: At the time of release, critics deemed the album far too polished for a live album, as most of the audience was muted in the mix. The song arrangements and adlibs like "Is anybody hungry?" ensured that this was indeed a live effort.
Split into simpler sentences: At the time of release, critics were suspicious that the mix was too polished for a live album, as most of the audience was muted. The unique song arrangements and adlibs like "Is anybody hungry?" indicated that this was indeed a live effort.