From 6dc4592ed26dc460f6042eca068613cecfc11621 Mon Sep 17 00:00:00 2001 From: "Rich O." Date: Thu, 1 Oct 2026 14:39:51 -0400 Subject: [PATCH] Initial voice pack: seven live-map voices for CoreScope Voices taken from CoreScope feat/audio-voices (ac257569), plus a compat shim for stock audio.js, an idempotent install/uninstall script, a derived-image Dockerfile, and tests that run against a real public/ dir. Co-Authored-By: Claude Opus 5.5 --- Dockerfile | 9 + LICENSE | 674 ++++++++++++++++++++++++++++++++++ README.md | 156 ++++++++ docs/writing-voices.md | 340 +++++++++++++++++ install.sh | 67 ++++ tests/run.sh | 29 ++ tests/smoke.js | 91 +++++ voices/audio-synthkit.js | 451 +++++++++++++++++++++++ voices/audio-v2-metal.js | 221 +++++++++++ voices/audio-v3-synthmetal.js | 173 +++++++++ voices/audio-v4-technoir.js | 147 ++++++++ voices/audio-v5-ambient.js | 101 +++++ voices/audio-v6-dub.js | 140 +++++++ voices/audio-v7-acid.js | 108 ++++++ voices/audio-v8-lofi.js | 128 +++++++ voices/audio-voices-compat.js | 37 ++ 16 files changed, 2872 insertions(+) create mode 100644 Dockerfile create mode 100644 LICENSE create mode 100644 README.md create mode 100644 docs/writing-voices.md create mode 100755 install.sh create mode 100755 tests/run.sh create mode 100644 tests/smoke.js create mode 100644 voices/audio-synthkit.js create mode 100644 voices/audio-v2-metal.js create mode 100644 voices/audio-v3-synthmetal.js create mode 100644 voices/audio-v4-technoir.js create mode 100644 voices/audio-v5-ambient.js create mode 100644 voices/audio-v6-dub.js create mode 100644 voices/audio-v7-acid.js create mode 100644 voices/audio-v8-lofi.js create mode 100644 voices/audio-voices-compat.js diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..e5038f6 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,9 @@ +# Stock CoreScope image + the extra live-map voices. +# docker build -t corescope-voices . +# Pin a CoreScope version with: --build-arg CORESCOPE_IMAGE=ghcr.io/kpa-clawbot/corescope: +ARG CORESCOPE_IMAGE=ghcr.io/kpa-clawbot/corescope:latest +FROM ${CORESCOPE_IMAGE} + +COPY install.sh /opt/corescope-voices/install.sh +COPY voices/ /opt/corescope-voices/voices/ +RUN sh /opt/corescope-voices/install.sh /app/public diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..8e0a39d --- /dev/null +++ b/README.md @@ -0,0 +1,156 @@ +# corescope-voices + +Seven extra **audio voices** for the [CoreScope](https://github.com/Kpa-clawbot/CoreScope) +Live page. CoreScope can turn every incoming mesh packet into sound; a *voice* +decides what that sounds like. Stock CoreScope ships one (`constellation`). +This pack adds: + +| Voice | Style | +|-------|-------| +| `metal` | Distorted drop-D guitar: power chords, palm-mute chugs, leads, bends | +| `synthmetal` | Metal guitar + supersaws, octave bass, kick/gated snare, ping-pong delay | +| `technoir` | Dark 80s synthwave: driving bass, drum machine, chorused pads | +| `ambient` | Slow FM bells and drone pads in a big hall, not tied to the beat | +| `dub` | One-drop drums, offbeat skanks into a long feedback echo, sirens | +| `acid` | TB-303 patterns from packet bytes over four-on-the-floor drums | +| `lofi` | Swung boom-bap, electric-piano jazz chords, tape wobble, crackle | + +The pack is front-end only: a few JavaScript files plus ` +``` + +The order is `audio.js` → `audio-synthkit.js` → `audio-v1-constellation.js` +(the default) → `audio-v2-metal.js` → other voices. Leave `__BUST__` as it is. +The server swaps it for a cache-busting timestamp at startup, so **restart the +server** after editing `index.html`. + +### 3. Try it + +Open `#/live`, tick **Audio**, and pick your voice in the Voice dropdown. For +repeatable listening, use the Audio Lab (`#/audio-lab`). It has the same voice +selector, a sidebar of sample packets grouped by type, and **Play** / **Loop** +buttons. Its "Sound Mapping" table and per-note breakdown describe the +`constellation` voice's mapping, not yours. + +## Design guidelines + +These are the patterns the existing voices follow. They are what keep audio +cheap on a busy mesh (30K+ packets, several arriving per second). + +- **Separate the music from the audio.** Write a pure `arrange(parsed)` (or + `buildRiff`) that returns note events on a step grid, and a `play()` that + renders them. The pure part can be unit-tested exactly. Expose it on the + voice object (`registerVoice('x', { name, play, arrange })`). +- **Be deterministic.** The same packet should always produce the same riff. + Derive everything from the packet's bytes and fields. The only randomness + allowed is `panFor`'s spread and noise buffers. +- **Follow the tempo.** Scale every duration by `opts.tempoMultiplier`. If your + voice has drums or a groove, start on `kit.gridStart()` so concurrent packets + lock together. +- **Budget oscillators.** Stay at or below **128 oscillators per packet** in the + worst case (the longest payload, the highest `obsCount`, every type). For a + sine sub bass, use `playSynth` with `type: 'sine'` and one detune rather + than a new instrument. Use + `sampleBytes` to bound the note count. Limit detuned stacks to 3–5 + oscillators. +- **Never build expensive nodes per packet.** Convolvers (reverb), long delays + and LFOs belong in shared buses, built once per `AudioContext` (`kit.bus`, or + your own `WeakMap` keyed by the context). +- **Clean up.** Disconnect every per-note node in the oscillator's `onended`, and + disconnect per-packet buses in a `setTimeout` after the last note. +- **Exponential ramps can't reach 0.** Use `0.0001` as "silent" for + `exponentialRampToValueAtTime`. +- **Match the other voices' loudness.** At master gain 0.3, the existing voices + land around −33 to −24 dB RMS while sounding, with peaks well under 1.0. Check + yours with the snippet below and adjust the per-packet level. + +### Measuring level and output in the browser + +Run this in the dev tools console on `#/live`. It renders offline, so nothing +plays out loud. + +```js +const bytes = Array.from({ length: 40 }, (_, i) => (i * 97 + 13) & 255); +for (const t of ['ADVERT', 'GRP_TXT', 'TXT_MSG', 'TRACE']) { + const oc = new OfflineAudioContext(2, 44100 * 5, 44100); + const master = oc.createGain(); master.gain.value = 0.3; master.connect(oc.destination); + _meshAudioVoices.chime.play(oc, master, { payloadBytes: bytes, typeName: t, hopCount: 2, obsCount: 4, payload: {}, hops: [] }, { bpm: 120, tempoMultiplier: 1 }); + const d = (await oc.startRendering()).getChannelData(0); + let peak = 0, sum = 0, n = 0; + for (const x of d) { const a = Math.abs(x); peak = Math.max(peak, a); if (a > 1e-3) { sum += x * x; n++; } } + console.log(t, 'peak', peak.toFixed(3), 'rms', (10 * Math.log10(sum / Math.max(1, n))).toFixed(1), 'dB'); +} +``` + +## Testing + +Every voice needs tests (see `AGENTS.md`). Two layers: + +### Unit tests (`tests/unit/test-audio-.js`) + +`tests/unit/audio-harness.js` loads the real `public/audio*.js` files into a +`vm` context with a fake `AudioContext` that records every node, connection and +parameter automation: + +```js +const assert = require('assert'); +const { loadAudio, playOnce, reaches, parsed } = require('./audio-harness'); + +const ctx = loadAudio(['public/audio-v1-constellation.js', 'public/audio-v9-chime.js']); +const chime = ctx._meshAudioVoices.chime; + +// Render one packet and inspect the graph +const r = playOnce(chime, parsed('ADVERT', [1, 2, 3, 4, 5, 6, 7, 8, 9])); +assert.ok(r.dur > 0); +r.nodes.filter((n) => n.kind === 'osc').forEach((o) => assert.ok(reaches(o, r.master))); +``` + +`voiceBasics(test, ctx, name, budget)` from the harness runs the checks every +voice needs: registration with `constellation` still the default, every +oscillator heard or modulating, the worst-case oscillator budget, deterministic +`arrange()`, and engine integration. Load all voices with `loadAudio(ALL_VOICE_FILES)` +after adding yours to `ALL_VOICE_FILES`. See `test-audio-dub.js` for a compact +example, and `test-audio-technoir.js` for a longer one. + +Also worth covering: + +- `arrange()` output for each type: notes in the intended scale, rhythm on the + grid, fallback for unknown types, same bytes giving the same result +- the audio graph: every oscillator reaches the master; effects are shared + (built once per context); worst-case oscillator count stays within budget +- `MeshAudio.sonifyPacket()` with the voice selected doesn't throw for any type + +Arrays created inside the `vm` context have a different prototype. Spread them +(`[...arr]`) before `assert.deepStrictEqual`. + +Add the file to `test-all.sh` in alphabetical order. The inventory check +(`tests/unit/test-test-inventory.js`) fails if a `test-*.js` file isn't listed. + +### E2E (`tests/e2e/test-audio-live-1297-e2e.js`) + +This test stubs `AudioContext` in the browser and drives the Live page. Add your +voice to the voice list checks: the dropdown lists it, selecting it persists, +and it plays every type without logging `[audio] voice error`. If your voice +uses a Web Audio node the stub doesn't provide yet, add it to the +`FakeAudioContext` there. + +## Trying a voice on a running Docker container + +The image copies `public/` into `/app/public` at build time. To try a voice on +an existing container without rebuilding: + +```sh +docker cp public/audio-v9-chime.js :/app/public/ +docker exec sed -i 's#\(#' /app/public/index.html +docker restart # re-applies cache busting +``` + +Also copy any shared files your voice depends on (`audio.js`, +`audio-synthkit.js`, `audio-v2-metal.js`) if they're newer than the image's. +Changes made this way are lost when the container is recreated. For a lasting +change, rebuild the image. diff --git a/install.sh b/install.sh new file mode 100755 index 0000000..8c11c7e --- /dev/null +++ b/install.sh @@ -0,0 +1,67 @@ +#!/bin/sh +# Install (or remove) the extra live-map voices into a CoreScope public/ dir. +# +# ./install.sh install or update +# ./install.sh --uninstall remove +# +# Copies voices/*.js into the directory and adds their \n' "$f" +done) + +awk -v a="$ANCHOR" -v b="$BEGIN_MARK" -v e="$END_MARK" ' + { print } + !done && index($0, a) { print " " b; print ENVIRON["TAGS"]; print " " e; done = 1 } +' "$TMP" > "$INDEX" +rm -f "$TMP" + +echo "Installed corescope-voices into $PUBLIC. Restart CoreScope so it re-reads index.html." diff --git a/tests/run.sh b/tests/run.sh new file mode 100755 index 0000000..c3d24c8 --- /dev/null +++ b/tests/run.sh @@ -0,0 +1,29 @@ +#!/bin/sh +# End-to-end test of install.sh against a real CoreScope public/ directory. +# +# tests/run.sh +# +# Works on a temporary copy; the directory you pass is never modified. +set -eu + +[ $# -eq 1 ] || { echo "usage: $0 " >&2; exit 2; } +HERE=$(cd "$(dirname "$0")/.." && pwd) +WORK=$(mktemp -d) +trap 'rm -rf "$WORK"' EXIT +cp -R "$1" "$WORK/public" +cp "$WORK/public/index.html" "$WORK/index.orig.html" + +fail() { echo "FAIL: $*" >&2; exit 1; } + +sh "$HERE/install.sh" "$WORK/public" >/dev/null +sh "$HERE/install.sh" "$WORK/public" >/dev/null # re-run must not duplicate +n=$(grep -c 'audio-v2-metal.js' "$WORK/public/index.html") +[ "$n" -eq 1 ] || fail "expected 1 metal