Answers.Body: <p>Audio samples are encapsulated into frames as well. For PCM, the framing is notional, but for DCT-based codecs, it's a basic requirement.</p>
  
  <p>AAC typically bundles 1024 <strong>s</strong>amples <strong>p</strong>er <strong>f</strong>rame, so 1 second of 48000 samples represents 48000/1024 = 46.875 FPS</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-31T18:57:35.557Z
Answers.LastActivityDate: 2018-10-31T18:57:35.557Z
Answers.UserDisplayName: Gyan
Body: <p>I have a video file with audio. <code>ffprobe</code> reports two different numbers: Sampling rate and Frame rate. I understand the 48kHz rate--there are 48,000 audio samples every second. What is the other number, and what is a "frame" in this context?</p>
  
  <pre><code> Audio
   ID                                       : 2
   Format                                   : AAC
   ...
   Sampling rate                            : 48.0 kHz
   Frame rate                               : 46.875 FPS (1024 SPF)
  </code></pre>
  
Tags: <audio><framerate>
Title: What is the difference between audio Sampling rate and Frame rate?
UserDisplayName: iter
ThreadText: # What is the difference between audio Sampling rate and Frame rate?
  
  (Asked by: username_0 on 2018-10-31)
  
  I have a video file with audio. `ffprobe` reports two different numbers: Sampling rate and Frame rate. I understand the 48kHz rate--there are 48,000 audio samples every second. What is the other number, and what is a "frame" in this context?
  
  ```
   Audio
   ID                                       : 2
   Format                                   : AAC
   ...
   Sampling rate                            : 48.0 kHz
   Frame rate                               : 46.875 FPS (1024 SPF)
  
  ```
  
  **Tags:** audio, framerate
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-10-31. Score: 7 | Accepted answer
  
  Audio samples are encapsulated into frames as well. For PCM, the framing is notional, but for DCT-based codecs, it's a basic requirement.
  
  AAC typically bundles 1024 **s**amples **p**er **f**rame, so 1 second of 48000 samples represents 48000/1024 = 46.875 FPS
  
  
  ---
  
  