自建数据微调 seaco_paraformer 后，推理官方音频，预测器为什么只输出开始字符？

[shan2gao2shui2chang]

###Question
微调后推理任何音频，模型都输出开始字符，最后结果输出为空，没有任何汉字。总感觉不像是微调过，而像从0训练了一遍模型，现在微调后的模型性能下降到几乎为0。微调过程如下，不知道哪一步有问题，或者我该怎么排查问题的位置呢？

Date

{"key": "L4M8jW8rcQojNksDHH9F", "source": "/root/scx/yuyin/FunASR/data/train_audio_split/L4M8jW8rcQojNksDHH9F.wav", "source_len": 174, "target": "资料柜我不要的资料柜吗", "target_len": 11}
{"key": "SAcVKMe4sYoUWG7lnTKB", "source": "/root/scx/yuyin/FunASR/data/train_audio_split/SAcVKMe4sYoUWG7lnTKB.wav", "source_len": 346, "target": "那是放资料呀我们这个不是资料柜呀", "target_len": 16}
{"key": "TQSpIHjfVSIwJRf7DoAP", "source": "/root/scx/yuyin/FunASR/data/train_audio_split/TQSpIHjfVSIwJRf7DoAP.wav", "source_len": 107, "target": "那你加", "target_len": 3}

共两个小时数据，分 10 分钟验证集和 110 分钟的训练集。

Finetune

进行了 50 轮微调，微调过程无报错，数据加载正常，损失函数下降正常，模型保存正常，最后两轮结果如下：

[2024-12-28 10:00:10,369][root][INFO] - rank: 0, dataloader start from step: 0, batch_num: 103, after: 103
[2024-12-28 10:00:44,799][root][INFO] - train, epoch: 48/50, data_slice: 0/1, step_in_slice: 103/103, total step: 5042, (loss_avg_rank: 0.254), (loss_avg_slice: 0.521), (ppl_avg_slice: 1.684e+00), (acc_avg_slice: 0.000), (lr: 3.394e-05), [('loss_seaco', 0.254), ('loss', 0.254)],

[2024-12-28 10:00:44,828][root][INFO] - rank: 0, dataloader start from step: 0, batch_num: 11, after: 11
[2024-12-28 10:00:46,558][root][INFO] - val, epoch: 49/50, data_slice: 0/1, step_in_slice: 11/11, total step: 11, (loss_avg_rank: 0.271), (loss_avg_slice: 0.441), (ppl_avg_slice: 1.554e+00), (acc_avg_slice: 0.000), (lr: 0.000e+00), [('loss_seaco', 0.271), ('loss', 0.271)],
[2024-12-28 10:00:46,564][root][INFO] - Save checkpoint: 49, rank: 0, local_rank: 0

[2024-12-28 10:00:49,211][root][INFO] - rank: 0, dataloader start from step: 0, batch_num: 103, after: 103
[2024-12-28 10:01:24,013][root][INFO] - train, epoch: 49/50, data_slice: 0/1, step_in_slice: 103/103, total step: 5145, (loss_avg_rank: 0.106), (loss_avg_slice: 0.498), (ppl_avg_slice: 1.645e+00), (acc_avg_slice: 0.000), (lr: 3.463e-05), [('loss_seaco', 0.106), ('loss', 0.106)],

[2024-12-28 10:01:24,042][root][INFO] - rank: 0, dataloader start from step: 0, batch_num: 11, after: 11
[2024-12-28 10:01:26,262][root][INFO] - val, epoch: 50/50, data_slice: 0/1, step_in_slice: 11/11, total step: 11, (loss_avg_rank: 0.279), (loss_avg_slice: 0.426), (ppl_avg_slice: 1.532e+00), (acc_avg_slice: 0.000), (lr: 0.000e+00), [('loss_seaco', 0.279), ('loss', 0.279)],
[2024-12-28 10:01:26,273][root][INFO] - Save checkpoint: 50, rank: 0, local_rank: 0

Inference

使用微调后的模型文件进行推理官方测试音频 asr_example.wav，结果输出如下：

解码器解码后几乎全是开始字符，而且我测试其他客户数据音频，也全都是，没有任何汉字。

Environment

modelscope 官方 docker 镜像。
modelscope-registry.cn-beijing.cr.aliyuncs.com/modelscope-repo/modelscope/ubuntu22.04-cuda12.1.0-py310-torch2.3.1-tf2.16.1-1.21.0

[shan2gao2shui2chang]

是数据集的数据有什么限制吗？还是数据量不够？