I generally wouldn't comment on sound editing, but the poor quality was very egregious and made it hard to follow the information.
The background music was much too loud throughout. Different voice tracks (for instance, some scientists' discussion and the narrator's voiceover) would be set at the same level and played simultaneously, making it virtually impossible to distinguish the sense of either one. Also, extremely annoying to people like me who often need lip movements to augment our understanding of speech, the video and audio tracks became unsynced somewhere in the middle of the documentary.
The substance of the documentary that I could gleen was excellent. I suspect I would've given it a higher score if I could have understood more of it.
The background music was much too loud throughout. Different voice tracks (for instance, some scientists' discussion and the narrator's voiceover) would be set at the same level and played simultaneously, making it virtually impossible to distinguish the sense of either one. Also, extremely annoying to people like me who often need lip movements to augment our understanding of speech, the video and audio tracks became unsynced somewhere in the middle of the documentary.
The substance of the documentary that I could gleen was excellent. I suspect I would've given it a higher score if I could have understood more of it.