1-bit

Release notes 5 min read

1-bit 2.2, Inner Light

1-bit 2.2 is on the App Store. Seven new DAC profiles from listeners who measured their own, a new Now Playing with a Card and a Full Screen layout, casting to your bridge's own player and to MPD and OpenHome players, and favorites and playlists that stay in step across your devices.

Sleeve for 1-bit 2.2, Inner Light

1-bit 2.2 is on the App Store. Same URL, new build, free update.

The codename comes from The Inner Light, the 1992 Star Trek: The Next Generation episode in which Picard lives a whole life on a lost world and comes back with its music. A nod to Sir Patrick Stewart, and to the light in the new Now Playing: its glass, and the threads of light that trace the music along the timeline.

What’s new

New DAC profiles, thanks to youSeven DACs join the built-in profiles, and each one came from a listener who ran Profile my DAC and sent the result in: the iFi GO link, thanks to Axel Arenas and SnOpeth; the FiiO KA11, thanks to 42l6; the FiiO QX13, Snowsky Tiny A and Luxsin X8, thanks to Graham Lyth; and the Headphone Zone x ddHiFi Hi-Res DAC and the JCALLY JM98MAX, shared anonymously. They are in Settings, DACs, and in Signal Path when one is plugged in. Thank you all.
A new Now PlayingOn iPhone, and in a narrow iPad window, Now Playing comes two ways. Card sets the cover in a rounded card over a soft blur of itself; Full Screen lets the cover fill the screen. Tap the artwork button to switch, and press and hold it for artwork and framing options. Tap the artwork to see it alone, and tap again for the controls. Settings, Appearance, Now Playing chooses the actions under the controls, and the refreshed typography scales with your text size.
Your bridge’s own playerFrom version 0.2.2, a bridge on a Linux box can play to a USB DAC plugged into that box. When 1-bit recognises the bridge’s own player, cast to it from the player picker, and Signal Path shows the source and the player’s details. It plays PCM for now: a DSD track is refused, never converted. Switch it on from the Player page of the bridge’s console.
More network playersThe player picker now lists the MPD and OpenHome players on your network beside DLNA renderers, so a Volumio or moOde box can play your music. When your bridge identifies its own box’s MPD player, 1-bit groups that player’s entries into one row (Settings, Audio, Network players). And, as an experiment, an MPD player’s own library can be a source: Sources, +, Add MPD Player.
Playlists across devicesPair your devices with the same bridge, switch its backups on, and favorites and playlists stay in step between them. With bridge 0.2.2, a heart you remove stays removed on your other devices, and an older save can no longer overwrite a newer edit. The .m3u and .m3u8 files in your bridge’s library come in as playlists after a sync, and any playlist exports as M3U8 from its menu.

Also in 2.2

Home Screen quick actions: press and hold the 1-bit icon to search, shuffle your favorites or your whole library, or play the album or playlist you played most recently.

And on the bridge side

Bridge 0.2.2 came out the day before the app, and most of 2.2’s new tricks lean on it.

The bridge can be the player now: on a Linux box with a USB DAC it plays your FLAC, WAV, AIFF and ALAC files itself, at the file’s own rate and bit depth. On a box that already plays through MPD, under Volumio or moOde for instance, it tells the app about that player, its DAC and the format reaching it. Favorites and playlists carry revisions, the playlist files in your library reach the app, Linux gets a one-line installer, and the DLNA listener no longer answers on the bridge’s Tailscale address.

None of it is required. 2.2 still works with bridge 0.2.1: the wire protocol is still v1, and nothing needs re-pairing. The bridge’s own player, the box’s MPD player, playlist files and hearts that stay removed are what wait for 0.2.2. Read what’s new in 0.2.2 before you update a bridge: a hand-edited bridge.yaml is read more strictly.

Same audio path

No transcoding. No resampling. No mixer in the path. DSD still goes out as DoP to your USB DAC, and PCM still goes out at the file’s own sample rate. When you cast, the player fetches the music straight from your bridge or media server, and the iPhone stays out of the audio path. With everything left at its defaults, the bytes that reach your DAC are the bytes in your files. How DSD playback is handled →

The down-to-earth version

If you already have 1-bit: open the App Store and tap update. Your sources, bridges, folders, playlists, hearts, downloads and settings all carry over, and there is nothing to re-pair. Now Playing opens as a Card; the artwork button switches it to Full Screen. If you run a bridge, update it too.

If you are new: it is a free download for iPhone and iPad, iOS 26.1 or later. Bring a NAS, a bridge, a UPnP server, or just a folder of files on the phone, plus a USB DAC for bit-exact DSD. Or add the demo library from Sources and borrow mine for an evening.

Seven of the DAC profiles in this release came from people using the app. Thank you, and keep them coming.

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