Viktor.comAn AI coworker that actually does the work
Promoted
TakeOne
Records music practice through Bluetooth perfectly aligned
11 followers
Records music practice through Bluetooth perfectly aligned
11 followers
Bluetooth latency on iOS has been a known problem for years. TakeOne solves it with an Objective Chirp calibration that measures round-trip delay (typically 230-310ms) and aligns playback automatically. 99% first-attempt success rate. What's in 1.1.0: one-tap calibration, aligned playback and M4A export, three-track Layered Takes (Pro), built-in metronome and tuner. Everything runs on-device. No account, no cloud, no uploads. Free to download, Plus and Pro are one-time purchases.
One thing that would help me a lot is a "save preset" option for the calibration, since I switch between my AirPods Pro and a pair of Shure SE215s depending on the session. Re-running the chirp each time gets old when the offset is usually nearly identical for the same headphones.
@ezels5ii Great catch — and you're right, that's a gap I've been looking at. Right now the profile is tied to the route fingerprint, not to the specific headphone model, so switching headphones means re-calibrating even if the offset is nearly the same.
I'm planning to add named device presets so you can save a calibration profile per headphone (or per session type) and switch between them without re-running the chirp. I have the schema mapped out — just need to wire it into the UI. Should land in one of the next few updates. Appreciate the real-world feedback, this is exactly the kind of detail that makes the product better.
@ezels5ii Great timing on this question — I just submitted v1.2 for review which adds exactly this. Once it's approved (should be tomorrow), the app will automatically save a calibration profile per Bluetooth device. Calibrate each pair once, and switching between them won't require re-running the chirp.
I'll drop another note here once it's live!
The on-device approach with zero accounts or uploads is such a rare choice these days, really refreshing to see. Curious how the chirp calibration holds up on older AirPods models too.
@lkereant Thanks! Going fully on-device was a deliberate call — the audio processing doesn't need a server, so adding one would just mean ongoing costs and privacy concerns for no benefit. On the older AirPods question: I've tested on AirPods 2 and first-gen Pros and the calibration works fine — the latency is actually more stable on the older H1 chip than the newer ones in some cases. The main variable is codec negotiation rather than age.
curious how the calibration holds up when i switch between different bluetooth devices mid session, do i need to recalibrate each time or does it adapt on the fly?
@cemraca51348 It actually already handles this — you only need to calibrate each pair of Bluetooth headphones once. The app saves the calibration profile per device, and when you reconnect the same headphones later, it automatically picks up the saved profile. Bluetooth latency is generally stable for the same device, so re-calibration isn't necessary unless you notice a change.
That said, if you do encounter a scenario where the offset feels off, you can always manually re-run the calibration from the Audio screen. But for normal use — one calibration per device, and you're set.
Finally! I've tried recording with GarageBand through Bluetooth and gave up after a few attempts. TakeOne just works — calibrate once and the alignment is spot on. The free tier is generous too, you can actually use it before deciding to upgrade. Well done.
@eugene_eugene7 Thanks, really appreciate you checking it out! The "use it before upgrading" thing was intentional — I wanted the free tier to be genuinely useful, not just a trial that cuts you off mid-session.
@arkey_liu The guitar teacher use case is one of my favorites — a single teacher recommending it to their students could spread further than any blog post. Glad the layered takes are working for harmony practice, that's exactly the scenario I built it for!
Finally an app that actually fixes the bluetooth lag on my AirPods without making me tweak ten settings. The one-tap calibration took seconds and the audio lined up instantly for tracking vocals.
@aysunparlat Appreciate that! The vocal tracking use case is one I don't hear enough — glad the calibration worked cleanly for it. Let me know if there's anything that would make the Layered Takes workflow smoother for vocals.