feat(native): decode audio and mp3 encoder (#10490)

packages/frontend/native/__tests__/audio.spec.mts

@@ -0,0 +1,23 @@
+import { readFile, writeFile } from 'node:fs/promises';
+import { join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { tmpdir } from 'node:os';
+
+import test from 'ava';
+
+import { decodeAudio, Mp3Encoder } from '../index.js';
+
+const __dirname = join(fileURLToPath(import.meta.url), '..');
+
+const wav = await readFile(join(__dirname, 'fixtures', 'recording.wav'));
+
+test('convert wav to mp3', async t => {
+  const audio = await decodeAudio(wav);
+  const mp3 = new Mp3Encoder({
+    channels: 1,
+  });
+  await t.notThrowsAsync(async () => {
+    const mp3Data = mp3.encode(audio);
+    await writeFile(join(tmpdir(), 'recording.mp3'), mp3Data);
+  });
+});