> Not to start a dog vs cat war, but as someone who loves both, I think I can safely say that cats put much more information in their voices than dogs, for example.

My cat only gets really vocal when she wants something ( & usually only with me, not my kids or spouse). She also trills a lot, usually in surprise. Could be they compress the data - dogs are very chatty - maybe the cats focus on high throughput whereas the dogs go for low-latency.

I'd love to see the same analysis done with dog barks.