I'm trying to find out the number of samples in one frame of SMPTE, does anybody know?

  • Samples of what?! What is sample rate of sound? How many frames per second?
    – Cvrgoje
    Dec 8, 2010 at 23:33
  • If I am not mistaken, that depends on whether the audio is locked or unlocked as well as the timecode frame rate & audio sampling rate I reckon. can you be more specific?
    – audiLe
    Dec 8, 2010 at 23:34

5 Answers 5


Samples per frame = Sample Rate / FPS

  • Note that the audio frame-rate may be different from the video framerate. Also note that this only calculates the average samples per frame; some codecs have a variable number of samples per frame.
    – jiggunjer
    Dec 17, 2015 at 6:18

It depends on the sample rate and the frame rate:

at 24fps and 48000Hz every frame is long (48000hz/24fps)= 2000 sample

at 25 fps and 48000Hz: (48000hz/25fps)= 1920 sample

hope it helps.



Guess it depends on the frame rate and sample rate? If sample rate is 48k and frame rate is 24fps that works out at 2000 a frame (i think!!) lol It's late and I'm quite tired so forgive me if I'm off ;) Hope that helps


Sample rate divided by frame rate. You can also select one frame in PT, set the counter to samples and look in the length box.


each frame audio depends on a video if a video is of 96 / 24 then it would be 96000 / 24 you will get a frame's sample so it would be 4000 samples per frame and if it is 48/24 it would be 2000 samples per frame :D

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