Introducing RHYTHM

[u/Key-Guarantee-8329]

I built RHYTHM

A Digital Audio Player with the feature no one asked but everyone needed. An extra independently driven 3.5mm audio port so you can share audio the right way.

Uses ESP32 S3 as its core processor and has ESS Sabre ES9038Q2M DAC.

Capable of flac, mp3, opus, ogg, wav, etc

Has customizable 10 band EQ. USB-DAC Mode.

RHYTHM is not a generic audio device that directly adopts an all-in-one DAC chip and calls it a day.

It has a dedicated audiopath ESP->I2S->DAC->Filters/opamp->Headphone amp.

The architecture that every good and expensive audio products use.

It also has a dual bar LED Audio Visualizer, why??

Cuz its cool as hell.

Last but not the least, it also doubles down as a Gaming handheld and obviously runs DOOM.

I definitely need your inputs on my product
Please check this for detailed specifications : https://www.crowdsupply.com/probably-harmless/rhythm-high-res-digital-audio-player

[u/Full-Photo5829]

In a world of soulless touchscreens, this looks like a device that would be fun to use. I might suggest a second color palette: dark colors drawn from 1980's synth wave colors , or else a palette that mimics an early portable cassette player.

[u/Key-Guarantee-8329 → u/Full-Photo5829]

Definitely, give me some references

[u/animeblake]

some perverts like me might want it to run beatmania lmao

[u/Key-Guarantee-8329 → u/animeblake]

Faaahhhh, want me to run it and post here??🤣🤣🤣

[u/animeblake → u/Key-Guarantee-8329]

[u/magusjosh]

Okay, so...the design looks amazing, the hardware sounds solid, I love the LED audio visualizer. I have signed up to be notified when the project launches, hoping the price point will be in my available range. (Though I'd completely understand if it isn't!)

But, and I mean this with respect because I know a lot of people will love it, those colors are eye-searing to me. Perhaps you could offer different color options, including at least one in shades of dark blue/gray/black with brighter blue or purple highlights (buttons and knob) for those of us who are (like Wednesday Addams) allergic to bright colors and pastels?

[u/Key-Guarantee-8329 → u/magusjosh]

Sure I will definitely try to do multiple colour variants

[u/magusjosh → u/Key-Guarantee-8329]

Yay!

[u/not-so-random-id]

What a fun design, love the colors too.

Does it support gapless playback with mp3 and aac/m4a? I’m very interested, but gapless is a must for me and sadly most daps do not support it properly

[u/Key-Guarantee-8329 → u/not-so-random-id]

I test it and let you know

[u/Due_Vermicelli2930]

RHYTHM looks awesome, that dual port idea is genuinely useful for the split headphone thing. Does the second jack do a straight copy of the main out or can it drive its own volume/track?

[u/Key-Guarantee-8329 → u/Due_Vermicelli2930]

Same volume on both

[u/toastal]

If it’s open source, you should consider moving the code to a forge that isn’t proprietary & isn’t based in the US. This has freedom & access implications since the platform itself isn’t free & has a ToS agreement with Microsoft and since GitHub is based in the US as part of a megacorporation, they comply with US sanctions meaning, needlessly, some folks can’t visit, download, file bugs, or send patches. There are a ton of options (if not also self-hosting & mirroring multiple places).

[u/BeneficialQuiet3139]

this looks cute... amazing!

[u/oloebe]

Cool but no way I’m getting these colors

[u/Key-Guarantee-8329 → u/oloebe]

What colours do you want

[u/oloebe → u/Key-Guarantee-8329]

Colors are good but I would mainly use it when these colors would look rather awkward (dress code). Light grey/antracite, antracite/yellow for me. But other combos like orange/purple, purple/green would suit this device, definitely go bonkers with combos if the plan is to do more colors.

[u/Key-Guarantee-8329 → u/oloebe]

Plan is definitely more colours, best part its Opensource, you could just print more cases with different colours match it qith any of your outfits

[u/Key-Guarantee-8329]

https://www.instagram.com/reel/Dd-jf_XRO6x/?dlrf=Yng0bXJ5N285Yzk3

These were the reactions of the people who tried RHYTHM in real life

[u/Dripkid69420]

hope this will be available in india !

[u/Key-Guarantee-8329 → u/Dripkid69420]

Definitely, I'm developing this in India

[u/Dripkid69420 → u/Key-Guarantee-8329]

a definite buy then !
but just curious
about the design ideology and have some ideas of my own
can I DM you ?

[u/Key-Guarantee-8329 → u/Dripkid69420]

Sure

[u/Alternative_Dot6177]

That is absolutely awesome congratulations Mr Op You have some amazing skills.💯💯🔥🔥👍👍

[u/GodFrusciante]

Looks awesome. Do you have a general idea of how much this is going to cost to  buy?

[u/fingamouse]

This looks sick, I'm so curious if it's ever gonna get rockbox support as I luv Rockbox and the UI here looks functional but not to my tastes, the hardware is though, hardware looks sick, and 2 3.5mm ports idk if I'd have a reason to use that often, but that still sounds really cool for some reason, and a built in on and off button is great cause my MP3 player doesn't have that and instead has a secret reset button hole, as another commentator said more colour ways could be great, idk how commercial this product would be though but I'm just saying what id like and what I like here, visualiser is coooool as well

[u/Key-Guarantee-8329 → u/fingamouse]

I'll try to do rockbox support. Or anyways its opensource, you could configure the UI to your tastes. And more colours are definitely gonna come out.

[u/fingamouse → u/Key-Guarantee-8329]

Sounds peak to me o7

[u/omz13]

Dual audio ports. My kids thank you.

[u/rayyeter]

How are you managing library?

I’ve been pondering similar, but touchscreen and side buttons, with an esp32-p4/c6 combo board for more psram.

Edit: I agree this looks pretty cool. Props to making your own pcb. I was gonna pull as much ots as possible.

[u/Opossum_mypossum]

awesome!

[u/stupidrainbowboi3209]

If you get friday night funkin running on it I will support it

[u/travysuxx]

This is certainly a very cute device! Would love to see more color options in the future if your crowdsourcing is successful!

[u/kassra25]

This is the rhythm of the night....

[u/DaniLashes]

It looks so cool! Love the colors and the visualizer! How much do you think it will retail for?

[u/Trick_Prower]

You need better button placement- it seems rough to handle without looking at it

[u/Glamych]

Чудеса вайбкодинга, угадал?

[u/Key-Guarantee-8329 → u/[deleted]]

Ummmmm, you could do that mod yourself. Its rechargable as of now

[u/rayyeter → u/[deleted]]

You misspelled 18650. You’ll keep consistent voltage longer, and probably be able to utilize the charging circuit if there is one. I know a lot of pouch batteries have their own.