1-bit

Blog

Release notes and guides.

The long version of every 1-bit release, plus step-by-step guides to DSD on iPhone and Chord gear — written by the person who builds the app.

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Release notes

What changed in each version and why — the long version of the changelog, newest first.

  1. 6 min read

    1-bit 2.0, Unfinished Symphony

    1-bit 2.0 is on the App Store. A private library we host for you, lyrics that follow the music line by line, DSD that plays on any output and says so, SACD rips and DST-compressed DSD that open like ordinary files, DSD256 with a wizard that profiles your DAC, and a player built for iOS 27.

  2. 7 min read

    1-bit 1.9, The Long Day Is Over

    1-bit 1.9 is on the App Store. A binaural renderer that puts the stereo image out around your head, a live spectrum and true-peak analyzer fed by a tap that only reads, favorites that back up to your own bridge, composers and genres as first-class sections, and a measured answer to whether a hi-res file really is one.

  3. 5 min read

    1-bit 1.8, Steady State

    1-bit 1.8 is on the App Store. You can point it at music folders on your device instead of copying them in, watch the music's real waveform behind the progress bar, open available album booklets, and find the records where an artist only guests. Additional improvements include optional offline caching, settings tuned to the DAC you own, and the largest fix pass since 1.0.

  4. 5 min read

    1-bit 1.7, First Light

    1-bit 1.7 is on the App Store. Ask Siri to play your library, a Home screen of automatic mixes your own bridge builds from your listening history, performer credits, and a new DAC profile — plus an optional way to pull richer artwork and artist notes. Bridge 0.1.7 ships alongside with Smart Mixes and on-device audio analysis. Same bit-exact DSD over DoP, no transcoding.

  5. 2 min read

    1-bit has a new home

    1-bit — the bit-exact DSD and PCM player for iOS — now has its own site at 1-bit.app. Here's what moved off ars.md, what stayed, and why the split made sense.

  6. 5 min read

    1-bit 1.5, the one with Chord 2Go support

    1-bit 1.5 is on the App Store. Play bit-exact to a Chord 2Go or any DLNA renderer on your network, back up your playlists to your own bridge, and keep a private listening history. Bridge 0.1.5 ships alongside with a DLNA MediaServer. Same DSD over DoP, no transcoding.

  7. 3 min read

    1-bit 1.4, the one that goes in the car

    1-bit 1.4 is on the App Store. CarPlay browse + Now Playing on the head unit, offline downloads, an in-app log viewer, and an optional DSD-domain DSP chain. Bridge 0.1.4 ships alongside with public-mode hosting and CarPlay-optimized variants. Same bit-exact DSD over DoP, no transcoding.

  8. 4 min read

    1-bit 1.3, the one where we forgot to change the codename

    1-bit 1.3 is on the App Store. Opportunistic background library scans, composer/conductor/work fields for classical, a Listening Tips guide, a refined cellular streaming gate — and an easter-egg card that still calls this version 'Too Late, Too Soon'. Bridge 0.1.3 ships alongside. Same bit-exact DSD over DoP, no transcoding.

  9. 3 min read

    1-bit 1.2: too late, too soon

    1-bit 1.2 is live on the App Store. Admin-approved bridge pairing, on-bridge upscaled audio variants, per-share cellular streaming, and a quieter audio engine — same bit-exact DSD over DoP, native-rate PCM, no transcoding.

  10. 3 min read

    1-bit 1.1, from the heart

    1-bit version 1.1 is on the App Store: a free open-source bridge for your music library, a stack of hard-won launch-week fixes, and the same bit-exact DSD and PCM playback to your USB DAC.

  11. 3 min read

    1-bit is out

    An iOS music player for people who care how their music sounds — bit-exact PCM and DSD over DoP, straight from your NAS to your DAC. Now on the App Store.

Guides

Hands-on walkthroughs: DSD on an iPhone, a Chord 2Go on your network, cable versus 2Go into a Hugo 2.

  1. 6 min read

    Cable or 2Go? Two ways to feed a Hugo 2 from an iPhone

    Two ways to play music from an iPhone into a Chord Hugo 2 — a USB cable, or UPnP to a 2Go bolted onto it. Both are bit-exact. Here's what actually differs, and which one is optimal.

  2. 5 min read

    Setting up a Chord 2Go with an iPhone

    How to play music from an iPhone to a Chord 2Go over your own network — bit-exact, no transcoding — using DLNA and a self-hosted 1-bit bridge. Plus the security caveat nobody mentions.

  3. 6 min read

    How to play DSD on an iPhone

    iPhones don't play DSD out of the box, and most apps quietly convert it to PCM. Here's what actually playing DSD takes — a USB DAC, DoP, the right file, and a player that gets out of the way.