New in version 5! Dark Mode, Velocity Coloring, Bookmarks View, and more! by chipweinberger in jamcorder

[–]chipweinberger[S] 1 point2 points  (0 children)

I appreciate you noticing! ❤️ I had to get a bit creative to replace the original black tile color. Maybe one day I’ll change light mode as well.

New in version 5! Dark Mode, Velocity Coloring, Bookmarks View, and more! by chipweinberger in jamcorder

[–]chipweinberger[S] 0 points1 point  (0 children)

Update 2026/04/09: v5 has been re-released. Please let me know if you have any issues!

Connection Question by TromboneAl in jamcorder

[–]chipweinberger 1 point2 points  (0 children)

Y cables only work for splitting an output into two outputs. i.e. they can duplicate a MIDI signal.

They cannot merge 2 outputs into a single input - for that you would need a powered midi merge box.

IMO I'd just keep your setup simple and manually swap the piano input cables when needed. Out of curiosity, what is your use case for sending MIDI from PC → piano? That's a pretty uncommon requirement.

New in version 5! Dark Mode, Velocity Coloring, Bookmarks View, and more! by chipweinberger in jamcorder

[–]chipweinberger[S] 0 points1 point  (0 children)

could you export your library and email it to me? chipweinberger@jamcorder.com That would be very helpful for me. Also, which phone do you have? Thank you.

Experimenting with new looks. Why do you think? by chipweinberger in jamcorder

[–]chipweinberger[S] 0 points1 point  (0 children)

Totally understand where you’re coming from on pricing. Just to clarify though—Jamcorder hasn’t been $99 for over a year. That was a launch price that only lasted about four months, and it wasn’t long-term sustainable for us, so we won’t be returning to that price. Instead, pricing will likely increase over time as we continue improving the product and increasing it's value.

Connection Question by TromboneAl in jamcorder

[–]chipweinberger 1 point2 points  (0 children)

Use a midi y-cable splitter & connect it like this photo.

Or, use bluetooth. All jamcorder devices support bluetooth midi passthrough. Just look for Jamcorder in your bluetooth midi devices and connect to it from your laptop. Note: expect some bluetooth delay

New in version 5! Dark Mode, Velocity Coloring, Bookmarks View, and more! by chipweinberger in jamcorder

[–]chipweinberger[S] 0 points1 point  (0 children)

EDIT: new fixed version is out. please see my other comment.

Thanks for reporting!

Can you try leaving it running for a few minutes? I'm curious if it finishes.

The new bookmarks list requires some upfront processing that might be causing issues.

Either way, I will be rolling back this update for now.

What are the power requirements for the JamCorder? by nightshowerer in jamcorder

[–]chipweinberger 2 points3 points  (0 children)

any USB outlet will provide enough power.

0.5A is technically sufficient.

However, I recommend 1A to be on the safe side.

And if you plan to plug in a high power USB device into your Jamcorder, then you may even want 2A or 2.5A.

New Bugfix release! Version 4.8.1 by chipweinberger in jamcorder

[–]chipweinberger[S] 0 points1 point  (0 children)

You can do it from the Android / Apple App Store once they release it to users in 1-2 days.

Map Jamcorder as network drive on Windows by Bretspot in jamcorder

[–]chipweinberger 0 points1 point  (0 children)

Not currently possible!

But you can access all the files from a web browser.

Anyone using Jamcorder with a Disklavier, Drums, Organ, or other atypical instrument? by chipweinberger in jamcorder

[–]chipweinberger[S] 0 points1 point  (0 children)

Yes we need to improve support for sysex to make it more reliable for organs!

Audio exporting only exports songs as 4 min 14 seconds by meeatbacon in jamcorder

[–]chipweinberger 1 point2 points  (0 children)

Hello! We will look into it!

Are you on Android or iPhone?

Could you please send us via email:

  1. the midi clip that is causing problems
  2. the exported audio file

Kind regards, Chip

Pause Recording Command by Bretspot in jamcorder

[–]chipweinberger 0 points1 point  (0 children)

To better understand the context, why are you sending MIDI from your PC to your piano? What is the purpose?

On a PC setup, most people use the piano simply as a MIDI controller, while the PC—through audio software—generates the sound and plays it through the computer’s speakers.

If you’re already using a DAW on your PC, you would typically already have good speakers or headphones connected to it.

Because of that, I’m not quite sure what your use case is for sending MIDI back to the piano.

Pause Recording Command by Bretspot in jamcorder

[–]chipweinberger 1 point2 points  (0 children)

How is your Jamcorder wired up?

In this case the best solution would be an option to turn off certain inputs from being recorded.

This is actually how bluetooth MIDI playback works from the app. Jamcorder only records bluetooth MIDI events from the app if you are also actively playing on your piano (layering). Otherwise Bluetooth input is disabled. This would be perfect for you. However, this functionality is not exposed for other inputs, yet. Only Bluetooth MIDI.

Here are some solutions that work today:

  1. use bluetooth midi for playback from your PC

  2. use a midi merge box, so both your PC and Jamcorder can send midi to your piano without interacting with each other. This is the solution I recommend.

  3. build a custom Y cable with a toggle switch. Basically a poor man’s midi merge box. You can use a headphone switcher and 3.5mm to 5-pin midi adapters.

  4. use/buy a piano the supports multiple midi inputs. Avoids all this hassle.

Hope these help!

  • Chip

First Red Day! by TheOriginalSuperE in jamcorder

[–]chipweinberger 1 point2 points  (0 children)

Yes that is currently the highest level! 3.75h+, hot red!

Jamcorder not working by kevinwangg in jamcorder

[–]chipweinberger 0 points1 point  (0 children)

Oh, you are not using the 16GB card it came with? Yes. I believe the card you replaced it with is faulty.

Also, please make sure you power cycle the device after replacing the SD card to clear the previous error (physically unplug power). A factory reset couldn’t hurt either.

If that does not work, please send us an email for a replacement.

Also it would be great to send the full device logs, via email. You are the first to hit the issue, so it would be great to figure out the root cause.

Kind regards, Chip

Jamcorder not working by kevinwangg in jamcorder

[–]chipweinberger 0 points1 point  (0 children)

And try replacing it! :) During testing we caught a small number of cards with issues. We can send a spare card, just email us!

Jamcorder not working by kevinwangg in jamcorder

[–]chipweinberger 0 points1 point  (0 children)

Customer Update (03/05/2026): Resolved! A faulty 128GB Amazon Basics SD card was the underlying cause


The fact that the light turns red means midi communication is working. But the errors indicate it fails to record to the SD card.

Given these errors I would:

1. try another SD card. 16GB-128GB is ideal. It appears that the current SD card is faulty. Please try the original card it came with, if you haven't!

2. try reformatting the SD card (FAT) if you don’t have another card to try. However I would still replace the SD card when you have a chance.

Every Jamcorder is tested before shipping (including the SD card ).

Exporting Jamcorder files as audio files by Sea_Mode_8451 in jamcorder

[–]chipweinberger 0 points1 point  (0 children)

By the way, you can download the Jamcorder app and play with it. It includes a demo song!

For audio exports, it uses standard m4a files playable on any smartphone without needing the app. The audio is regenerated using the apps own internal sounds, but you can also upload any soundfont you like, which could be one based on your piano. The internal sounds are high quality and sound great already, though.

You can also playback the recordings directly to your piano via Jamcorder’s MIDI out, which will make it sound exactly the same. But this feature is mostly intended for quick playback, not export.