load static method

Future<KokoroEngine> load(KokoroBundle bundle, KokoroChunkPolicy policy, KokoroStages stages, KokoroReader read,)

Loads the phonemizer data of bundle. stages holds the sessions; the engine closes them.

Implementation

static Future<KokoroEngine> load(
  KokoroBundle bundle,
  KokoroChunkPolicy policy,
  KokoroStages stages,
  KokoroReader read,
) async {
  final engine = KokoroEngine._(bundle, policy, stages, read);
  try {
    if (bundle.voices.isEmpty) {
      throw ArgumentError('At least one voice is required');
    }
    Future<String> text(String location) async =>
        utf8.decode(await read(location));
    Future<Map<String, dynamic>> json(String location) async =>
        jsonDecode(await text(location)) as Map<String, dynamic>;
    final fallback = engine._words.call;
    final us = Misaki.load(
      gold: await json(bundle.usGold),
      silver: await json(bundle.usSilver),
      spacyConfigJson: await text(bundle.spacyConfig),
      spacyWeights: await read(bundle.spacyWeights),
      fallback: fallback,
      unk: '',
    );
    final gb = Misaki(
      spacy: us.spacy,
      g2p: MisakiG2P(
        lexicon: MisakiLexicon(
          gold: await json(bundle.gbGold),
          silver: await json(bundle.gbSilver),
          british: true,
        ),
        fallback: fallback,
        unk: '',
      ),
    );
    engine
      .._us = us
      .._gb = gb;
    return engine;
  } catch (_) {
    await engine.close();
    rethrow;
  }
}