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NTSC vs. PAL – Which Is Better and What Is the Difference
https://www.movavi.com/learning-portal/ntsc-vs-pal-which-is-better.html
The first real difference between the two standards is the FPS (frames-per-second) rate – 29.97 for NTSC and 25 for PAL. In the case of NTSC, it used to be 30 FPS or a single frame for every complete alternation of a 60-Hz household outlet.
Digital Audio Sample Rates: The 48 kHz Question | TV Tech
https://www.tvtechnology.com/opinions/digital-audio-sample-rates-the-48-khz-question
In the U.S., Soundstream and 3M were leaders in digital audio recording, and both had hardware using the 50 kHz sample rate, which of course had generated a considerable quantity of software using that sample rate. 3M had proposed the distribution of 5005, 50 kHz digital audio samples over six video fields for NTSC television. 50 kHz may be derived by …
Converting NTSC audio to PAL - Audio ... - Creative COW
https://creativecow.net/forums/thread/converting-ntsc-audio-to-pal/
October 10, 2014 at 4:45 pm. Audio is not recorded in Frames Per Second (FPS). Audio is recorded in “samples per second”. The standard sample rate for video is 48,000 (“48K”) samples per second. Whether the picture is film or video, …
Examples - SourceForge
http://dvdauthor.sourceforge.net/doc/examples.html
At 48kHz, NTSC has 1601.6 audio samples per frame while PAL has 1920 audio samples per frame. Determine how many samples you need, and run: dd if=/dev/zero bs=4 count= number-of-samples | toolame -b 128 -s 48 /dev/stdin output.m2a
Will the End of NTSC Be the End of 59.94? | TV Tech
https://www.tvtechnology.com/opinions/will-the-end-of-ntsc-be-the-end-of-5994
NTSC 59.94 Hz also required a clever mathematical approach in order to distribute digital audio samples over video frames. This consideration, in fact, made a substantial contribution to the ultimate standardization of the 48 kHz professional digital audio sample rate.
DV Formats: Everything You Need To Know - …
https://www.videouniversity.com/articles/dv-formats-everything-you-need-to-know/
For PAL, 625/50 video, locked audio provides exactly the same number of samples per video frame with either 32 or 48kHz audio, but for NTSC, 525/59.94 video, the 48kHz “audio frame” is 5 video frames: locked audio will provide exactly the same number of audio samples for every five video frames, though not every frame within that 5-frame ...
Sampling (signal processing) - Wikipedia
https://en.wikipedia.org/wiki/Sampling_(signal_processing)
Used by digital audio locked to NTSC color video signals (3 samples per line, 245 lines per field, 59.94 fields per second = 29.97 frames per second). 44,100 Hz Audio CD , also most commonly used with MPEG-1 audio ( VCD , SVCD , MP3 ).
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