why 44.1 kHz anyway? especially why the .1?
-F

long post 

@Felthry to start, it needs to be more than 40kHz because of the shannon-nyquist theorem (in order to reproduce a certain frequency, you need a sampling rate of at least twice that, and human hearing goes up to around 20kHz)

as for the specific number, it seems to have something to do with the early digital-audio solution of recording to existing analog cassette formats like VCRs. on an NTSC cassette, you have 60 fields per second, and if you record 3 samples per video scanline at 245 lines per field, you get a sample rate of 3*245*60 = 44100 Hz. you can also use 50fps PAL format stuff in the same way with a different number of active lines per field

en.wikipedia.org/wiki/44,100_H and en.wikipedia.org/wiki/PCM_adap are good related reading

Follow

re: long post 

@typhlosion Hm, how *is* the audio stored on VHS? I thought VHS used analog audio

i was wondering if it might have something to do with the color burst frequency or something though, because that shows up a lot in the weirdest places
-F

Sign in to participate in the conversation
Awoo Space

Awoo.space is a Mastodon instance where members can rely on a team of moderators to help resolve conflict, and limits federation with other instances using a specific access list to minimize abuse.

While mature content is allowed here, we strongly believe in being able to choose to engage with content on your own terms, so please make sure to put mature and potentially sensitive content behind the CW feature with enough description that people know what it's about.

Before signing up, please read our community guidelines. While it's a very broad swath of topics it covers, please do your best! We believe that as long as you're putting forth genuine effort to limit harm you might cause – even if you haven't read the document – you'll be okay!