Google Speech API 的最佳采樣率是多少？ 有任何 Google 員工或專家可以發表評論嗎？

Question

到目前為止，我已經測試了一個非常小的 16 kHz 和 48 kHz 音頻文件。 我很樂意進行更大的測試，但如您所知，這需要花錢。

48 kHz 采樣率提供了更好的結果。 然而，在文檔中它說最好是 16 kHz

所以我有點困惑

這是我用來測試 Google Speech to Text API 的 16 kHz 和 48 kHz flac文件

16 kHz： https ://drive.google.com/file/d/1MbiW3t86W68ZqENtDqD4XdNmEV7QZbZA/view?usp=sharing

48 kHz： https ://drive.google.com/file/d/1aLN1ptMJBwuYc6FdAk6CxcK1Ex4jI3vh/view?usp=sharing

這里是制作的成績單

16 赫茲

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 赫茲

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.

視頻的原始采樣率為 48 kHz

那么任何專家或員工都可以對此發表評論嗎？

這些是我使用ffmpeg flac文件的 16 kHz 和 48 kHz 命令

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

Answer 1

到目前為止，我已經在一個非常小的 16 kHz 和 48 kHz 音頻文件上進行了測試。 我很想進行更大的測試，但正如你所知，它需要花錢。

48 kHz 采樣率提供了更好的結果。 但是，在文檔中它說最好是 16 kHz

所以我有點困惑

這里是我用 Google Speech to Text API 測試過的 16 kHz 和 48 kHz flac文件

16 kHz： https : //drive.google.com/file/d/1MbiW3t86W68ZqENtDqD4XdNmEV7QZbZA/view?usp=sharing

48 kHz： https : //drive.google.com/file/d/1aLN1ptMJBwuYc6FdAk6CxcK1Ex4jI3vh/view?usp=sharing

和這里產生的成績單

16 赫茲

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 赫茲

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.

視頻的原始采樣率為 48 kHz

那么任何專家或員工都可以對此發表評論嗎？

這些是我與ffmpeg一起使用的 16 kHz 和 48 kHz 命令來組成flac文件

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

Answer 2

16k 是最小值。 下采樣會丟失數據。 所以，如果您的原件是 48k - 最好保留它。