I'm surprised there hasn't been a successful open hardware project for a portable music player. Rockbox, a low power SoC, some decent DAC, a basic display - epaper would be kind of neat - and preferably a standard battery - something like the Nokia BL-5C.
I don’t find it surprising. It’s a solved problem. Every phone has a music player built-in, you can even choose which one to use from hundreds of options. Offline, streaming, self-hosted cloud, the options are nearly infinite.
Even if you don’t love the lack of headphone jack in the typical phone [1], the solution is an adapter that costs less than $10. What open hardware project can compete with that?
[1] Non-audiophiles are perfectly happy with AAC/AptX codecs over Bluetooth, the bottleneck is still the quality of your headphones, IMO, and the convenience of never tangling a cable greatly outweighs missing out on the audiophile ghost whispering that they supposedly hear
I mean, I don't disagree with your main point, but I hundred percent disagree with the notion audiophiles are the ones missing the 3.5mm jack. I miss it awfully and it's due to sheer convenience. Every one of my headphones used to work seemlessly with every one of my devices. I had cheap headphones (and later headsets) in each car, at the office, in the backpack, at home, and nice headphones at home, and they each and all worked with every phone and device immediatelly and without hassle or issues. They never ran out of battery, never disconnected, never had any lag, never garbled music, and were never obsoleted due to new codec or BT version or incompatibility or the eventual death of lithium ion. And they never wanted me to pull my little remaining hair if I dared to switch headphone or device.
Labeling those who vehemently miss 3.5mm as audiophiles is a straw man or phenomenal proportions.
Yup. I am definitely wouldnt call myself an audiophile, but I like my over ear headphones. I switch them easily between my desktop, my laptop, and my cell phone. They never die. Then I take my phone to my ten year old car and plug an aux cable in (it has Bluetooth but it is garbage - slow to connect, bad quality for music (regular skipping etc). Then when I travel to family's houses and want to play something over their stereo with an aux input, I can easily.
There is also value of 3.5mm input on the speaker - it reduces battery drain a lot (useful when camping for example, mine lasted longer almost 50%). All three BT speakers I was able to find in my flat (different brands) have the line-in connector. Checked just now because I was curious.
If you had nice headphones they probably didn’t work perfectly with everything, since most nice ones need a headphone amp to sound like they’re supposed to. The analog interface also means inconsistent volume, and using them on a walk means cable microphonics.
There are plenty of nice headphones with low impedance among grado, sennheiser, beyerdynamic etc, you kinda have to go out of your way to choose a high impedance “home stereo” style ‘phone
Wait, aren't Stax the electrostatic high-voltage headphones? I think at that point, "Convenience" is deeply crossed out as a selection criteria, and a portable phone while jogging is not a likely scenario :).
They actually made IEMs once. Beyond the technology being hard to manufacture, Stax's products are mainly just inaccessible because they have the traditional Japanese business approach of being run by 800 year olds who are actively offended by the idea that anyone they don't know might want one of their products.
"Nice headphones" is of course relative. I have two sets of Sennheiaer hd380. They plugged into anything and everything and sounded nice to my ears. They are super comfy. They still plug into my computer, synthesizer, and most of my stuff - but not of course my wife's iPhone.
(My old galaxy s2 had microsd, replaceable battery, grippy exterior,and of course 3.5 mm jack while being smaller in every dimension so I am skeptical as to some of the arguments other than "apple did it so entire industry will copy it")
As indicated above - I'm not am audiophile but I enjoy listening to music, and miss the easy convenience of 3.5mm jack on my phone along with everything else. A headphone amp would completely counter act the convenience and practicality.
It was perfect for the time. It's definitely lacking in features today, which is by definition true of any phone from that era.
I still have them both with me and in active use - mostly as remote controls, kids games, etc.
Perhaps more pertinently, my daily driver is a Galaxy Note 8, which also has a 3.5mm jack and MicroSD card. There's really nothing that my 4-generations newer, work-mandated iPhone has, in terms of functionality and definitely battery life, that Note 8 does not. iPhones are about sexy impracticality, and that's clearly where market has gone (Unlike S2 & S5, Note 8 also cannot be held without a case) - I'm just a old grouch who misses the olden days :).