feat(media-use): transcription (parakeet), transcript-cut, audio-duck editing tools

2026-09-13 15:49:53 +00:00 · 2026-07-06 23:41:35 -04:00
parent 5fe957363d
commit ac0153cb30
11 changed files with 1255 additions and 2 deletions
@@ -0,0 +1,44 @@
+import { strict as assert } from "node:assert";
+import { test } from "node:test";
+import { mergeTokensToWords } from "./parakeet-words.mjs";
+
+test("mergeTokensToWords joins sub-word tokens on the space boundary", () => {
+  const parakeet = {
+    text: "Hello everyone. Um,",
+    sentences: [
+      {
+        tokens: [
+          { text: " H", start: 0.0, end: 0.24 },
+          { text: "ello", start: 0.24, end: 0.48 },
+          { text: " everyone.", start: 0.48, end: 1.28 },
+          { text: " Um,", start: 1.28, end: 1.92 },
+        ],
+      },
+    ],
+  };
+  const { words } = mergeTokensToWords(parakeet);
+  assert.deepEqual(words, [
+    { text: "Hello", start: 0.0, end: 0.48 },
+    { text: "everyone.", start: 0.48, end: 1.28 },
+    { text: "Um,", start: 1.28, end: 1.92 },
+  ]);
+});
+
+test("mergeTokensToWords spans multiple sentences and drops empties", () => {
+  const parakeet = {
+    text: "Hi there",
+    sentences: [
+      { tokens: [{ text: "Hi", start: 0, end: 0.2 }] },
+      { tokens: [{ text: " there", start: 0.5, end: 0.9 }] },
+    ],
+  };
+  const { words } = mergeTokensToWords(parakeet);
+  assert.equal(words.length, 2);
+  assert.equal(words[1].text, "there");
+  assert.equal(words[1].start, 0.5);
+});
+
+test("mergeTokensToWords tolerates missing sentences/tokens", () => {
+  assert.deepEqual(mergeTokensToWords({}).words, []);
+  assert.deepEqual(mergeTokensToWords({ sentences: [{}] }).words, []);
+});