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> it would probably take up gigabytes of space, though. That's an interesting question. Some quick searching gives me these figures: * Knowing 10,000 words i
by dane-pgp 5y ago
> it would probably take up gigabytes of space, though.
That's an interesting question. Some quick searching gives me these figures:
* Knowing 10,000 words in a given language is considered the level required for fluency
* A standard speaking speed is 130 words per minute, or 7800 words per hour
* At 256 kbps, a minute of music takes 2 MB of storage, or 120 MB for an hour.
Let's say the app contained a professional recording of 7800 words (which should be more than enough for teaching just pronunciation and intonation), and let the user record up to 4 attempts at each word (e.g. their first attempt, their latest attempt, and a couple of intermediate attempts). That would mean 5 copies of roughly an hour's worth of speech, so 600 MB of storage. For comparison, that's about 1 or 2 minutes of iPhone 4K video.[0]
Anyway, thanks for giving it consideration, and I'm sorry I don't know anyone's who's into marketing. I wish you every success with the app!
[0] https://www.macxdvd.com/mac-video-converter-pro/4k-video-file-size.htm https://www.macxdvd.com/mac-video-converter-pro/4k-video-fil...
- david_d12345 5y agoCome to think of it, it's a really cool idea - and I'd like to do it if I could justify the work involved, but if this app ends up just being for me and a dozen other people, maybe I should spend my time on Earth working on something that produces more value for people. But let's say you study for thirty minutes each day for a month - 0.5hrs * 30days = 15 hours... And maybe half of that time is your recordings, so 7.5 hours of recording... that's about 1gb of recordings a month... So if you're a decent student who studies on average 30 minutes a day, that's 1gb of space on your phone a month... I have a fancy phone (that I'm not a big fan of, but that's another story), and it only holds 64gb. So your proposal is actually very doable... but it would need to be done thoughtfully... Especially if you're a diligent student and study for a number of hours each day... Maybe that would be a way to support the app - hold the data on a paid cloud service or something for users to go to and check. I'd be happier with that than putting advertisements up. Thanks for the good wishes!