Google cloud platform 谷歌语音API的最佳采样率是多少？有谷歌员工或专家对此发表评论吗？

到目前为止，我已经测试了一个非常小的音频文件与16千赫和48千赫。我很想进行更大的测试，但你知道这需要钱

48khz采样率提供了更好的结果。然而，在文件上，它说最好是16千赫

所以我有点困惑

这里是16 kHz和48 kHz

flac

文件，我用谷歌语音到文本API进行测试

16千赫：

48千赫：

这里是制作的成绩单

16千赫

Hello, dear students.

 Welcome to the lecture 1 of introduction to programming course.

 In this course, you will learn how to program you will learn the fundamentals of programming. You will learn how to be a software engineer. This course is the primary the most important cause of your Carriage. Why is that because in this course you will you will learn how to do

 Programming haftar called how to compose a software. So this is your most important lesson among all of the courses you are going to take because this lesson will teach you how to program.

 okay, so if you want to be a good programmer a good software engineer you have to

 Perfect.

 This course you have to give your most attention to this.

48千赫

Hello, dear students.

 Welcome to the lecture 1 of introduction to programming course.

 In this course, you will learn how to program you will learn the fundamentals of programming. You will learn how to be a software engineer. This course is the primary the most important course of your Carriage. Why is that because in this course you will you will learn how to do

 Programming how to code how to compose a software. So this is your most important lesson.

 Among all of the courses you are going to take because these lesson will teach you how to program.

 okay, so if you want to be a good programmer a good software engineer you have to

 Perfect.

 This course you have to give your most attention to this.

视频的原始采样率为48 kHz

那么任何专家或员工都可以对此发表评论

这些是我与

ffmpeg

一起使用的16 kHz和48 kHz命令，用于组成

flac

文件

-af aformat=s16:16000:mono
-af aformat=s16:48000:mono

---

16 kHz只是用于将语音转录成文本的建议采样率

我们建议在需要的音频文件中使用至少16 kHz的采样率 用于语音到文本的转录。样本率见 音频文件通常为16 kHz、32 kHz、44.1 kHz和48 kHz。 因为清晰度受频率范围的影响很大， 特别是在较高频率下，采样率小于16 kHz会导致音频文件在8以上几乎没有或没有信息 千赫。这可能会阻止语音到文本的正确转录 语音。语音清晰度要求信息贯穿始终 2 kHz到4 kHz的范围，尽管这些 更高范围内的频率对于保存也很重要 语言清晰度。因此，将采样率保持在 最低16 kHz是一种良好的做法