You establish a standards and then hardware companies build products to comply. THX created such and companies followed. Such a standard would by definition include the technology companies anyway so it is part and parcel of the same thing. But the start has to be content producers, labels, etc. If they don't come, there is no point in creating a standard.
What specific steps would content producers and labels need to take though?
They could start making mixes that are aimed at iPhones but then that increases the cost of mixing if you’re making a few different mixes. But the. production costs will go up.
Is there a market there to recover those costs through consumer payments?
Are people listening to iPhones interested in audio quality so that they will pay for an additional layer of Spotify subscription that is “mastered for iPhone”?
What is the incentive that is going to drive people to get on board? I understand that real Hifi enthusiasts will always try to eek out the last few percent of performance from their systems, but for general listeners, I don’t see them caring much about it.
I think we are a niche in a niche of a niche. We like music, are prepared to spend a considerable amount of time and effort to creat a good sounding playback system and are prepared to keep improving it towards audio nirvana. I don’t see the whole industry restructuring to eek out the last few percent of performance from our audio systems, when 95% of music listeners have very little interest in paying for that.