初步跑通 flutter 插件 whisper_ggml: ^2.7.1

代码封装 whisper_ggml 插件

import 'package:whisper_ggml/whisper_ggml.dart';

import 'injection.dart';

class WhisperGgmlSttService {
  final controller = WhisperController();
  Future<String> speechToText(String audioPath) async {
    final result = await controller.transcribe(
      model: WhisperModel.small,
      keepModelLoaded: true,
      // audioPath: '/path/to/audio.wav',
      audioPath: audioPath,
      // lang: 'en',
      lang: 'auto',
    );

    logger.i(result?.transcription.text);
    return result?.transcription.text ?? '';
  }
}

去 huggingface 下载模型文件

https://huggingface.co/ggerganov/whisper.cpp/tree/main

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../../services/injection.dart';

class AudioInput extends StatefulWidget {
  const new({super.key});

  @override
  State<AudioInput> createState() => _AudioInputState();
}

class _AudioInputState extends State<AudioInput> {
  bool isRecording = false;
  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onLongPressStart: (details) {
        isRecording = true;
        recorder.start();
      },
      onLongPressEnd: (details) async {
        isRecording = false;
        final recordedAudioPath = await recorder.stop();
        logger.i('recordedAudioPath: $recordedAudioPath');
        if (recordedAudioPath != null) {
          audioPlayer.play(recordedAudioPath);
          final text = await whisperStt.speechToText(recordedAudioPath);
          logger.i('text: $text');
        }
      },
      onLongPressCancel: () {
        isRecording = false;
        recorder.cancel();
      },
      child: ElevatedButton(
        onPressed: () {},
        child: Text(isRecording ? "Recording..." : "Hold to speak"),
      ),
    );
  }
}

初次摸索 whisper_ggml: ^2.7.1 的用法，不知道怎么用 android device explorer 把模型上传到指定位置/data/user/0/com.example.chatgpt_juejin/files/ggml-small.bin

正确的方法应该是 使用代码写入，更好的办法慢慢摸索

效果截图

。。。