Absence of Audio in the Test File

[ClarenceKiva]

Hello Mr/Ms

I have found an issue where there seems to be no audio in the test dataset which is confusing. I was wondering if maybe there was a problem or maybe there is a separate audio file for this. I hope to hear from you soon.

[Pike12]

The FFmpeg tool can be used to extract audio from it, even silent video

[CrispyFeSo4]

The FFmpeg tool can be used to extract audio from it, even silent video

I don’t quite understand—how can I extract audio from a silent video?

[hardlucky2023]

FFmpeg 工具可用于从中提取音频，甚至是无声视频

我不太明白 - 如何从无声视频中提取音频？

Hello, have you solved this problem? I recently wanted to extract new audio features myself. What should I do if there is no sound in the test set?

[CrispyFeSo4]

FFmpeg 工具可用于从中提取音频，甚至是无声视频

我不太明白 - 如何从无声视频中提取音频？

Hello, have you solved this problem? I recently wanted to extract new audio features myself. What should I do if there is no sound in the test set?

Hello, I found that using FFmpeg to read from the file path, rather than from the bpayload, can solve the problem. Perhaps some videos have audio that is hard to hear, but in fact, the sound is present. I hope this helps you.

[hardlucky2023]

FFmpeg 工具可用于从中提取音频，甚至是无声视频

我不太明白 - 如何从无声视频中提取音频？

您好，您解决了这个问题吗？我最近想自己提取新的音频功能。如果测试集没有声音怎么办？

您好，我发现使用 FFmpeg 从文件路径读取，而不是从 bpayload 读取，可以解决问题。也许某些视频的音频很难听到，但实际上，声音是存在的。我希望这对你有所帮助。
Thank you for your reply. I just searched GPT for related technical details. Do you mean that using FFmpeg to read .mp4 files and then generate .wav files is effective? It can extract audio features normally.

[CrispyFeSo4]

FFmpeg 工具可用于从中提取音频，甚至是无声视频

我不太明白 - 如何从无声视频中提取音频？

您好，您解决了这个问题吗？我最近想自己提取新的音频功能。如果测试集没有声音怎么办？

您好，我发现使用 FFmpeg 从文件路径读取，而不是从 bpayload 读取，可以解决问题。也许某些视频的音频很难听到，但实际上，声音是存在的。我希望这对你有所帮助。
Thank you for your reply. I just searched GPT for related technical details. Do you mean that using FFmpeg to read .mp4 files and then generate .wav files is effective? It can extract audio features normally.

让我们说中文。
先用ffprobe检查是否有音轨，如果没音轨，那无法提取。如果有音轨只是难以听到，可以提取。
我的问题是我原来使用字节流提取，提取出来是(0,)，确认有音轨后不使用字节流而是从路径直接读取，成功。

[hardlucky2023]

好的，我明白了，谢谢您的回复，能不能再问您下，测试集中听不到声音的那些mp4文件都有音轨吗？

[CrispyFeSo4]

好的，我明白了，谢谢您的回复，能不能再问您下，测试集中听不到声音的那些mp4文件都有音轨吗？

我可以正常跑测试。应该是有的。

[hardlucky2023]

好的，谢谢您，祝您科研顺利