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EdnunpandClaude Opus 4.7 c59e413c1f Bump to v1.2.0: recording, sound cues, drift compensation, diagnostics

New user-facing features:

* Recording. Dedicated Record menu (Alt+O — moved from Alt+R to
  avoid clashing with the Receive audio checkbox), Start/Stop on
  Ctrl+R, settings dialog, per-profile source / format / bit-depth /
  channel-mode / folder. Three source modes (received only, sent
  only, both). Files are crash-resilient — a process crash
  mid-recording leaves a playable file containing everything up to
  the last header refresh (~5 seconds).

* Four output formats, all functional:
    - WAV: 16/24-bit PCM or 32-bit float, custom writer with
      periodic RIFF re-patching.
    - MP3: LAME 128–320 kbps CBR (via NAudio.Lame).
    - OGG-Opus: 96–256 kbps VBR (via Concentus.Oggfile, reusing the
      Concentus encoder from the wire path).
    - FLAC: 16/24-bit lossless (via CUETools.Codecs.FLAKE — pure
      managed, no native DLL).

* Recording start/stop sound cues. record start.wav and
  record stop.wav play around the recording transition. Played via
  System.Media.SoundPlayer to the default Windows output, separate
  from the recording pipeline so a normal recording does not contain
  the cue.

* Per-cue Preferences. The old single "Mute connect/disconnect
  sounds" checkbox is replaced by a CheckedListBox: Connect /
  Disconnect / Recording start / Recording stop. Old profiles with
  the legacy MuteConnectionCues=true are honoured on first load via
  a migration path in the new Load* helpers.

* Receiver-side drift compensation switched from discrete
  single-frame splices to a continuous WdlResampler at a smoothed
  rate ratio. SessionPlayout.cs rewrite.

Diagnostics (only active with Enable logs ticked):

* Per-stage discontinuity probes — sender raw capture (per backend,
  PushModeWasapi + Asio both wired), sender pre-encode (now per
  lane in BothIndependent, fixing a cross-stream artefact), receiver
  post-decode, post-ring, post-resampler.

* Wire-level packet sequence tracking on each PCM stream — in-order
  / missed / reordered / duplicated counts in the diag log.

* Clipped-sample delta in the diag log.

* New AudioStepProbe in RemSound.Core with per-channel scan helper.

UI changes:

* Record menu uses Alt+O (Rec&ord). Inside the menu, item mnemonics
  unchanged (S / T / O / C).

* Auto-tune interval combo label is mode-aware: "Auto-tune latency
  interval" in classic modes, "Auto-tune interval — WASAPI and ASIO"
  in BothIndependent. The combo's Enabled state now follows EITHER
  lane's auto-tune checkbox (was only the WASAPI one — bug).

Wire format and audio pipeline unchanged from v1.1 — v1.1 and v1.2
peers interoperate.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-05-15 12:40:01 +01:00

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RemSound v1.2

Recording, sound cues, and receiver-side drift compensation. The wire format and audio pipeline are unchanged from v1.1, so v1.1 and v1.2 peers interoperate.

Highlights

Recording to disk. Dedicated Record menu (Alt+O) with Start/Stop on Ctrl+R, settings dialog, per-profile source / format / bit-depth / channel-mode / folder. Pick received only, sent only, or both as the recording source. Files are crash-resilient — a process crash mid-recording leaves a playable file containing everything up to the last header refresh (~5 seconds).
Four output formats, all functional. WAV (16/24-bit PCM or 32-bit float), MP3 (LAME, 128–320 kbps CBR), OGG-Opus (96–256 kbps VBR, reuses the Concentus encoder from the wire path), FLAC (pure-managed CUETools FLAKE, lossless ~50% the size of WAV). All four record at 48 kHz; labels make the rate explicit.
Recording start / stop sound cues. Short audible confirmation when recording transitions on or off. Played via the default Windows output device, separate from the recording pipeline, so a normal recording does not include the cue.
Per-cue sound preferences. The single "Mute connect/disconnect sounds" checkbox in Preferences is replaced by a per-cue CheckedListBox: Connect / Disconnect / Recording start / Recording stop. Old profiles with the legacy mute on are honoured automatically on first load.
Receiver-side drift compensation upgraded. Continuous WdlResampler running at a slowly-updated rate ratio replaces v1.1's discrete single-frame splice corrector. Smooths long-session sender-vs-receiver clock drift without the occasional 21 µs splice.

UI changes

Record menu moved to Alt+O. The old Alt+R chord collided with the Receive audio (Alt+R) checkbox on the main form. Inside the menu the item mnemonics are unchanged (S / T / O / C).
Auto-tune interval label is mode-aware. In BothIndependent mode the interval combo's label reads "Auto-tune interval — WASAPI and ASIO" so it's clear the same combo drives both lanes' tick cadence — each lane still independently tunes to its own latency target.

Diagnostics (only active with Enable logs ticked)

Per-stage discontinuity probes: sender raw-capture, sender pre-encode (per-lane in BothIndependent), receiver post-decode, post-ring-buffer, post-resampler. Lets log inspection localise where in the chain an audio click was introduced.
Wire-level sequence tracking on each PCM stream: in-order / missed / reordered / duplicated packet counts in the diag log.
Clipped-sample delta in the diag log.

Bug fixes

Auto-tune interval combo no longer greys out when only the ASIO lane's auto-tune is ticked in BothIndependent mode. Previously the combo's enabled state followed only the WASAPI checkbox.

Install

Download RemSound-v1.2.zip from this release.
Extract somewhere with write permission (e.g. C:\RemSound\, Documents\RemSound\, etc.). Avoid Program Files unless you grant write permission so the self-updater can replace files in place.
Run RemSound.exe. Allow on private networks when Windows Firewall prompts.
Press F1 (or use the Help menu) for the user manual.

Requires the .NET 10 Desktop Runtime. If it's missing, Windows offers to fetch it on first launch.

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