I was thinking to build wireless earbuds with a studio-grade high quality microphone. There should be an additional clip-on mic that uses the same bluetooth connection and charges in the case. I want to record podcasts while walking with superb audio quality.
Turns out, will cost roughly 5 bitcoin in research and development.
I guess I'll do it if you zap this note hard.
I use Shockz bone conducting headphones. They don't have a studio-quality mic, but they only cost like 100k sats. :)
Any hardware tinkers that could do a prototype much cheaper?
Why not buy Apple EarPods Pro ?
The mic isn't good enough, by far.
It should be insanely great studio quality mic.
I fear that's not possible. 44.1khz/16bit(cd quality) for stereo out and mono in required over 2.1mbps bandwidth. Best bluetooth codecs nowadays can achieve an absolute maximum of 1.2mbps over very short distances.
You should check new Sennheiser wireless systems. https://www.sennheiser.com/en-de/catalog/products/wireless-systems/profile-wireless-2-channel-set/profile-wireless-2-channel-set-700266
I'd be fine with a usb-c receiver plugged into the phone.
The important thing I'm missing with existing solutions like sennheiser is that there's no two way audio support needed for calls.
Oh, you are right; only the receiver has the monitor out. Yeah, I guess that you are moving into a live performance gear realm than. Not cheap, and not simple.
Does that gear work with android?
No, I don't think so. You need a base station that costs 8-10k.
That's a shame, I'm looking for a compact tool good for walk and talks in the forest.
In that case I think this one would actually work for you. https://www.sennheiser.com/en-de/catalog/products/wireless-systems/profile-wireless-2-channel-set/profile-wireless-2-channel-set-700266
You can connect receiver to the phone, and IEMs to the receiver.
How does the call audio output get to the headphones?
You have a mic out on the receiver. So you need wired IEMs.
That mic out only plays the recorded sound, right?
I need something for calls, so the audio should be sourced from the phone and play in the earbuds.
I don't know. Initially, I thought, why wouldn't it? I guess it makes sense not to, as this is intended for behind-the-camera monitoring. Still, you can use some of these wireless mics and bluetooth IEM together. What's the issue there? These receivers have an internal battery, so it will not put extra battery drain on the phone.
Android cannot split incoming mic from outgoing audio, so using such a plug in mic with Bluetooth headset isn't possible.
Oh, I see. Check this out. https://moondroplab.com/en/products/voyager
Moondrop makes superb IEMs, can't imagine their mics not being superb as well.
Interesting, Thanks!
I'm not a big fan of the neckband style though.
I'm all for hardware but this is much easier to do in software in post. And this comes from someone who hates post editing!
A clip on lav style mic with a wind protector going into a field recorder will be fine.
Unless you meant "live" podcast because I was confused about the need for headphones.
You can use a field recorder that has EQ and most importantly, a noise gate (and noise reduction).
Getting this small is challenging when I think honestly I'd suggest using the phone to do this for a prototype.
Yes, I mean a live podcast recording in call apps.
And unfortunately on android you cannot separate audio output and input to two devices, it should be all in one bluetooth connection.
I think what you want is a mobile "audio interface" that is wired to the mobile over usbc, but then this dongle has a Bluetooth chip in and a 3.5mm jack for the lav mic.
So the phone looks like the dongle is doing the audio and then it's split from there.
I know wires are not cool but It's probably easier to do.
This is exactly what you are looking for except with wire:
Besides. Cyherpunks surely wouldn't use Bluetooth with all of its security issues over the years would they?
Analog cable audio is more secure and private. 🫠
However, most audio interfaces in modern devices use USB-C. And Bluetooth is more secure than connecting stuff to your USB-C plug :)
Why you think that Bluetooth is more secure than USB-C? To me Bluetooth seems to be pretty vulnerable legacy.
It depends on what you want to do. Bluetooth 5 leaks a random number that people can use to track you.
USB-C connection, in the other hand, can take full control of your device if you are not careful.
nostr:nprofile1qqsd74a5np4zcevevhpal9w28l4r2vazq7cfhuk9tfcdgpk86py3yncpp4mhxue69uhkummn9ekx7mqpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3vamnwvaz7tmjv4kxz7fwwpexjmtpdshxuet5hnxg5v wdyt about feasibility of a cheaper prototype?
starts with a search of china markets, most things are already being made in some capacity
Wouldn't the microphone need to be closer to mouth for better clarity?
I don't know a lot about this but it at least makes sense to me
