Nathaniel Labs
Product changelog

Sangam release history

Latest version: v1.2.12.

1.2.12

  • The installer now waits for the Mac's audio to come back after it replaces the audio driver, and gives Sangam's audio service up to a minute to start, so the update finishes instead of stopping halfway.
  • Calmer meters. Every level bar now rises instantly and falls smoothly, like a hardware meter, instead of flickering between words and notes. The voice row no longer blinks its border with every syllable.
  • Each app says plainly whether it is on: PLAYING, OPEN, MUTED or CLOSED, next to its meter. The green light stays on between phrases instead of blinking.
  • Favourites: click the star on any app (or right-click it) to keep it at the top of the list, always shown.
  • New apps arrive at 100% and muted in Sangam, so nothing new leaks into a stream or a call. Unmute it with one click. The app still plays on its own speakers.
  • An app you removed shows up again, muted, the next time you open it and it plays.
  • Apps that have been deleted from this Mac are dropped from Saved apps.
  • The remove (X) button is bigger, always visible and turns red under the pointer, and a removed app disappears at once.
  • Volume goes to 200% (double, +6 dB). For a quiet source such as a DAW mixed to -12 or -18 dBFS, use Boost on the app's fader for +6, +12 or +18 dB.
  • Change the voice input right on the main page: click the input under "Voice (Mic)" and pick any channel or stereo pair on any connected interface.
  • Voice Console opens faster: the list of your installed plug-ins loads in the background.
  • Voice Console meters now read true dBFS (-60 to 0, marks at -18, -12 and -6) with a peak readout that holds long enough to read. They used to show a voice at -20 dBFS as about -4.
  • Mute Everything in the menu-bar panel: one big button silences every app and the mic in Sangam at once, and the menu-bar icon turns into a red crossed speaker. Unmute Everything puts back exactly what was on before.
  • A new version is easy to spot: an "Update available — <version>" button appears at the top of the Sangam window and in the menu-bar panel, and the menu-bar icon gets a blue dot. Click it, then choose Download Update or Later. Nothing installs on its own.
  • Check for Updates… is in the Sangam menu, in the menu-bar panel and in Settings, with the version you have beside it.
  • Sangam checks when it opens and then every hour (was once a day). A found update stays on screen even if a later check cannot reach the internet.
  • The audio driver refuses a badly formed command from another program instead of risking a crash of the Mac's audio system.
  • Install scripts only install parts signed by Nathaniel School of Music's own Apple developer account, checked inside a folder only the system can change.
  • Updating the driver from inside Sangam swaps it safely: if anything fails, the previous driver is put back, so the Mac is never left without one.
  • The end of a recording is never cut off: Sangam stops the input, writes every last sample, and only then closes the file.
  • Checking for updates no longer freezes the window, and an up-to-date copy now says "up to date" instead of showing an error.
  • Panic (silence everything) always acts at once, even if the driver is slow.
  • The background service notices a newly installed driver without a restart, always uses the signed-in person's own settings folder, and never follows a planted link when it writes files.
  • Shared files in the system's temporary folder are opened safely, and idle connections no longer hold resources forever.
  • Every installer now uses one shared list of apps that must not be interrupted.
  • Removed old Shruti build scripts from Sangam; Shruti is built from its own project.

1.2.7

  • Select a hardware input channel or stereo pair with independent gain, mute, metering and Audio Unit effects. Search installed Audio Unit effects and rescan after installing new ones; VST/VST3 hosting is not included.
  • Native-rate timeline reads preserve samples bit for bit; meter updates avoid rebuilding the whole mixer.
  • Check for authenticated updates inside Sangam. Automatic discovery respects your preference and never installs silently. Review the changelog and choose Download Update, then separately confirm Install in macOS Installer.
  • The signed installer updates the app and matching resident service together, retaining prior components for rollback. It refuses active or unknown audio sessions and only replaces the HAL driver/restarts Core Audio when that driver changes.
  • Package authentication handles the actual macOS notarization report while independently verifying the pinned Developer ID Installer team and signed package checksum.
  • Installer safety checks now use Sangam’s bundled native tool. Python, Xcode and Rosetta are not required for installation on supported Apple silicon Macs.
  • Installer text clearly explains reopening Sangam from Applications after installation to resume microphone and app audio. Sangam can then run in the menu bar when its window closes.

1.2.2

  • MUTE and MUTED show the real mute state.
  • The public Sangam microphone cannot be deleted. It stays a stereo live mix; extra template pairs are ISO files.
  • Launch at login is the resident helper only.
  • Uninstall removes that helper and will not restart Core Audio while a DAW is running.
  • Recordings keep their length if the disk stalls. 24-bit files are dithered. App ISOs stay raw.
  • The published mix stays 32-bit float. Overload is counted; it is not hidden as a “soft ceiling.”
  • Loopback import keeps extra devices off the public mic and matches Loopback’s 50% level.
  • Typical aligned path on the studio rig remains tens of milliseconds before Zoom or OBS add their own buffer.

1.2.1.1

  • The microphone input channel you choose is remembered through a restart. Before, if the audio interface was still waking up when the Mac started, Sangam could quietly move the mic to a different channel and save that — so after a restart, apps using Sangam as their microphone (Zoom, dictation, classes) heard nothing.
  • Everything else is exactly Sangam 1.2.1. Driver 0.6.0 unchanged.

1.2.1

  • Lower capture buffering and stable long-session clock handling. The tested studio setup measured approximately 32 ms of Sangam transport.
  • Corrected Safari helper capture and reliable coexistence with Shruti.
  • Microphone processing stays on the voice path; instruments and app audio retain their separate stereo paths. Sangam supports 24-bit WAV recording for a lossless local master.
  • The installed release passed an OBS recording with three visible claps and speech, with no clipped samples and 4.4 dB of true-peak headroom. This studio used a measured +80 ms OBS audio correction; calibrate your own camera and receiving app rather than copying that value blindly.
  • The installer preserves running audio while administrator authentication is pending. When the driver is unchanged, it updates the matched app and service without restarting Core Audio.

1.2.0

  • Every source on one clock: your voice is the clock, a track (Spotify, YouTube, a DAW) sits on it as heard, a piano (Pianoteq, MainStage, any standalone instrument) is pulled by the MIDI delay measured while you play.
  • A microphone you can leave on: the capture graph runs only while a call app, recorder or monitor is listening — 1–2 % of one core idle, measured.
  • Record is the home screen: one button, the exact Zoom mix as 24-bit WAV, a health line that stops a failing take and says why. Three surfaces: Record / Mix / Setup.
  • Voice chain for teaching and calls: spectral noise reduction under the voice, a true-RMS gate between phrases, tone EQ, soft-knee compressor and speech leveler — the 10.7 ms spectral stage is compensated so the mic never drifts against the apps.
  • Driver 0.5.2. macOS 14.2 or later, Apple silicon and Intel, Developer ID signed and Apple-notarized. Other audio routers can stay open; Sangam never taps their virtual devices.

1.2.0-rc.17

  • Faders respond instantly, always. Touching any app's fader/pan/mute/EQ/sync gives that app its
  • "Everything Else" is updated in place. When an app gains/loses its own lane the system tap's
  • Apps enter the mix within ~0.2 s of their first sound. Core Audio process start/stop events
  • Live Sync sliders (per-app and voice) and the mic volume slider are tactile: per-tick preview
  • "As heard" policy restored uniformly: the calibrated `latencyMs` is informational only; both
  • RAW INPUT / processor meters read the MIC lane, not the device-wide max (a dead mic looked
  • Previews of noise/comp/EQ/pan reach the headphone monitor too; the monitor honours the mic
  • NaN/Inf from a user plug-in or driver glitch can no longer poison the voice chain (envelopes
  • SIGPIPE ignored + SO_NOSIGPIPE on every control socket: a CLI/daemon that hangs up mid-frame
  • Config decoding is tolerant end-to-end: unknown source kind, malformed voice/EQ settings, one
  • Changing the Mac's default output (AirPods, HDMI) re-points every app tap; the mic lane never
  • Zero-lane transitions keep the ring writer alive (publisher writes silence): no generation
  • Start-in-flight tracking + exponential backoff for failing starts: no rebuild storms after

1.2.0-rc.16

  • Recovers the selected microphone safely after cold boot without silently falling back to another input.
  • Keeps one publisher per audio endpoint and isolates plug-ins and app runtime failures.
  • Coalesces dormant mixer and meter work for low background CPU use.
  • Preserves the public Sangam microphone name and exact aligned live-mix routing.

1.1.0-rc.7

  • Maintenance release.

1.0.0

  • Maintenance release.