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Homebrew Bluetooth Headphones

218 点作者 cunidev将近 3 年前

16 条评论

terramex将近 3 年前
I have converted my old Beyer Dynamic DT 770 to Bluetooth [1] and used them daily for past 6 months and I recommend this BT module over what is listed on that website: <a href="https:&#x2F;&#x2F;www.gotronik.pl&#x2F;odbiornik-bluetooth-50-audio-aptxll-qcc3008-przetwornica-5v-p-8185.html" rel="nofollow">https:&#x2F;&#x2F;www.gotronik.pl&#x2F;odbiornik-bluetooth-50-audio-aptxll-...</a><p>It has 5V stepdown converter and Li-Po charger as well as amplifier integrated on board. Cheap USB-C Li-Po chargers lack neccessary 5.1kOhm pull-downs and therefore work only with USB-A-&gt;USB-C cables. Soldering them onto charger PCB is borderline impossible, while adding them to most USB-C sockets is fairly easy (usually there are free pads to solder 5.1k SMD resistor). You then connect 5V and GND from USB-C socket to BT module and it handles charging the battery that is connected to separate pads.<p>I don&#x27;t really understand why article recommends board without amplifier, I tried using CSR8675 board without one and it was waaay too quiet.<p>With 500mAh battery salvaged from old BT speaker I get over 20h of loud playback, which is fine for me.<p>[1] <a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;headphones&#x2F;comments&#x2F;r32ru2&#x2F;yet_another_dt770_internal_bluetooth_conversion&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;headphones&#x2F;comments&#x2F;r32ru2&#x2F;yet_anot...</a>
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TaylorAlexander将近 3 年前
These look nice! I have also been making my own headphones. I recently posted a twitter thread with build instructions if anyone wants to make them. [1]<p>Notable difference is that mine are simpler to build, though less integrated. I use an off the shelf bluetooth to 3.5mm adapter rather than one of those integrated boards (I did recently buy an integrated board to test out). The off the shelf bluetooth adapter just plugs in to the short 3.5mm cable I build in to the headphones, which has the advantage that you can make them wired headphones with a simple extension, which sometimes has its use. Anyway take a look!<p>[1] <a href="https:&#x2F;&#x2F;twitter.com&#x2F;TLAlexander&#x2F;status&#x2F;1550903550930067456" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;TLAlexander&#x2F;status&#x2F;1550903550930067456</a>
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pxx将近 3 年前
&gt; They sound awesome – on par with pairs that cost around $200<p>I don&#x27;t know. The problem is that $20 pairs often sound on par with ones that cost around $200. But the ones that cost around $200 have much better ANC than the $20 ones. You can definitely tell on an airplane. And these don&#x27;t have noise cancelling at all.
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squarefoot将近 3 年前
Apologies for hijacking the thread. If anyone is interested in building high quality digital uncompressed and very low latency phones, speakers and other audio devices, I&#x27;ve found a while ago this doc about a pair of modules promising some impressive performance.<p><a href="http:&#x2F;&#x2F;www.vastera.com.tw&#x2F;1&#x2F;PDF&#x2F;DIO-S003B.pdf" rel="nofollow">http:&#x2F;&#x2F;www.vastera.com.tw&#x2F;1&#x2F;PDF&#x2F;DIO-S003B.pdf</a><p>Unfortunately so far I haven&#x27;t been able to find any seller.
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DarthNebo将近 3 年前
I just wanted to be able to use 18650 cells in my headphones &amp; never worry about battery life.
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thatcat将近 3 年前
Found a wired version <a href="https:&#x2F;&#x2F;www.instructables.com&#x2F;DIY-3D-Printed-Headphones&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.instructables.com&#x2F;DIY-3D-Printed-Headphones&#x2F;</a>
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dijonman2将近 3 年前
I really want long range bluetooth, from one side of my house to the other. I like to walk around while on calls and range sucks.<p>I looked into bodypack solutions but it’s receive or transmit, can’t find transceivers.
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tehwebguy将近 3 年前
This rules! I have one of this bluetooth chip but mine didn’t come with the breakout pre-soldered &amp; I’m struggling to solder them myself, thinking I should try paste + heat gun.<p>I believe you can also can change the name that the BT module broadcasts if you have an FTDI to USB cable (or something with UART pins like an Arduino). (You can also just change the “display name” on your iOS device bluetooth settings but it is just the name your device shows. I’m guessing this is doable on Android and everything else too.)
userbinator将近 3 年前
I believe the CSR chipsets have some programming tools available as well, so you can change things like the voice prompts to your liking (many of the cheap modules seem to come with the infamous &quot;the Bluetooth device is ready to pair&quot; meme sound) and adjust the device name.
nyanpasu64将近 3 年前
How practical is homebrew open codec support, like building Bluetooth headphones or receivers with software&#x2F;hardware Opus decoding support (as opposed to conflict-of-interest proprietary codecs that the Bluetooth standards authors add to the standards, then profit from license fees)?
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bullen将近 3 年前
I stocked up on Urbanears Plattan 2 during the last sale, they are both bluetooth and cable headphones but you need to buy the cable yourself, I bought kramer cables.<p>For $25 a pair they are easily the best headphones I have ever had, my last pair was a Plattan 1 that lasted 8 years!!! (cable broke once)
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skeyo将近 3 年前
The homebrewer in me was like &quot;what do headphones have to do with brewing&quot;
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harha将近 3 年前
Small side note on Bluetooth:<p>I regularly use four devices (phone, tablet, laptop, desktop) and I have two pairs of headphones (in ear and over ear).<p>Since it’s 2022 and we have so much amazing technology all around us, these are the two things I’m missing: I’d like to be able to use any combination of these without pairing again and I’d also really like to stay connected while I’m listening to something or having a conversation.<p>Is this really too much to ask for? Now the funny thing is that it doesn’t matter if I spend $20 or $200. I’ve heard AirPods may be better as long as you stay in the apple ecosystem, but that’s one constraint too much.
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rob_c将近 3 年前
Very cool, would be curious to know battery life Vs audio quality but very impressive non the less
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melkael将近 3 年前
The instructions recommend to print with ABS. Any reason for not going for PETG or PLA ?
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intsunny将近 3 年前
The whole bluetooth headhones situation is a little ironic.<p>Us Linux types remember how long it took until the MP3 patents expired for us to stop having to add non-free repos everywhere and being treated as the ugly cousin because we couldn&#x27;t support such a universal codec out of the box.<p>Fast forward today, and we&#x27;re back at square one because everyone and their mother wants some new codec to make bluetooth audio quality suck not so bad. (Bluetooth couldn&#x27;t do better than SBC out of the box? really?)<p>The only difference between yesterday and today is that, we Linux folks are much better at quickly enabling support for proprietary codecs out of the box.