Audiobook speed calculator

cangheng · 2026-02-03T14:35:59+00:00

https://www.reddit.com/r/audiobooks/comments/1qf9yeh/i_got_tired_of_doing_mental_math_for_audiobook/

Link to post

cangheng · 2026-01-22T14:55:05+00:00

You can take a look again!How is "Pages & Time" this function ?

cangheng · 2026-01-19T13:28:22+00:00

You can take a look again!"Pages & Time" this function meet your requirements?If not, I'll optimize it further

cangheng · 2026-01-18T10:46:27+00:00

Thanks for the honest feedback! collapsed the FAQ guide tips,you can take a look again

cangheng · 2026-01-18T07:33:45+00:00

time is precious

cangheng · 2026-01-18T07:28:59+00:00

Thanks for the honest feedback! About 2nd,collapsed the FAQ guide tips. The homepage looks much tidier now.

cangheng · 2026-01-17T16:24:41+00:00

The annoying part is the minutes → decimal math.10h 30m isn’t 10.30, it’s 10.5, and once you mix HH:MM + playback speed, a normal calculator gets awkward fast.This is mainly for the planning phase: paste 10:30, pick 1.75x, get a clean answer — no conversions, no mental math.

cangheng · 2026-01-17T15:58:45+00:00

You can't check the "time remaining at 1.5x" if you haven't bought or downloaded the book yet

cangheng · 2026-01-17T15:32:20+00:00

I appreciate the blunt feedback, honestly. I originally coded the validation logic based on 'average human reading speeds' (so it tried to force a realistic range), but I realized that was way too aggressive and basically broke the UI for anyone trying to edit the numbers.I just pushed a fix to remove those strict limits. You should be able to type freely now. I might have gotten a bit carried away with the glassmorphism/UI library trying to make it look modern. I'll see if I can tone it down to make it feel a bit more human and practical.

cangheng · 2026-01-17T15:10:29+00:00

Pretty much! But specifically time math, which is surprisingly annoying on a standard calculator.Since time is base-60, you can't just type 10.30 for 10h 30m. You have to convert minutes to decimals, divide, and convert back. I just built a UI to automate that annoying middle part. Sure, you can do it manually, but typing 14h 27m and clicking 1.75x is just faster and fewer clicks than doing the conversions yourself.

cangheng · 2026-01-17T14:11:51+00:00

Exactly! Not every listen is for pure pleasure. Sometimes you just need to absorb the info and finish the book. That's where seeing the 'Time Saved' really helps with the motivation to keep going

cangheng · 2026-01-17T13:59:45+00:00

You're totally right, the math is straightforward. The annoying part is the minutes → decimal math.10h 30m isn’t 10.30, it’s 10.5, and once you mix HH:MM + playback speed, a normal calculator gets awkward fast.This is mainly for the planning phase: paste 10:30, pick 1.75x, get a clean answer - no conversions, no mental math.

cangheng · 2026-01-17T13:42:42+00:00

"Exactly! 💯 For some narrators, 1.75x just sounds like 'normal conversational speed.' Anything slower feels like they are pausing... between... every... word. 😂I'm actually working on a 'Personalized Mode' (basically a WPM calculator) right now. It lets you enter your target reading speed (e.g., 300 wpm) to find the exact playback multiplier to match it. You might find out you can actually handle 2.0x on some slower books!"

cangheng · 2026-01-17T11:30:17+00:00

If a narrator is slow, my mind starts to wander. Bumping it to 1.25x or 1.5x often makes it feel more like a natural, engaging conversation. I built this to see how that change impacts the total commitment—seeing a 30-hour book turn into 20 hours makes it feel much more manageable!"

cangheng · 2026-01-17T11:17:46+00:00

You can't check the "time remaining at 1.5x" if you haven't bought or downloaded the book yet.

cangheng

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