However, that could change in the future. This is according to a patent filed by Apple as discovered by AppleInsider. This patent suggests that in the future, Siri could modulate her volume and speech based on environmental factors, meaning that one day, Siri could speak up louder or softer depending on how loud or quiet the room is.
It could also be determined by how you speak to Siri, so if you’re shouting, Siri might assume you’re in a noisy place and could shout back, or if you whisper to it, Siri could then whisper back. What’s interesting is that Apple would not be the first to think up of something like this. Amazon actually has a similar feature for its Alexa digital assistant, so if anything, it feels like Apple would be catching up.
However, as this is a patent, we can’t say with 100% certainty that this is something Apple will actually implement in the future, so don’t get your hopes up just yet.