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How does DT affect AR?

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21
Topic Starter
Aquamarine
http://osu.ppy.sh/wiki/Ar#Approach_Rate

Wouldn't a map at 200bpm with DT at 9 AR be the same as a regular map at 200bpm with 9 AR?
buny
It doesn't affect AR rating but it does affect the AR value by making them come at 1.5x rate
MillhioreF
The AR is technically higher because notes take 50% more time to appear before they need to be hit. The note density is what stays the same with DT, because they come faster to match the increased AR.
Rianne_old
Drafura
Are this values the same for taiko & ctb ?
Topic Starter
Aquamarine
thanks for the chart. tested AR11 with a 90bpm map and 300ms is insane. how many people can do AR11?

wait. the bpm doesn't matter does it? the timing will always be 300ms?
Wishy
Not many, and most actually rely on memory other than sight-reading. And no, BPM doesn't matter.
MillhioreF
Taiko and mania can't be measured, because AR is calculated by slider velocity and BPM (just BPM in mania.) CTB can though, it feels like the same values as standard, though I could be wrong about that.
Topic Starter
Aquamarine
In the chart, how come hard rock has a faster "AR" until AR7, at which DT becomes faster? DT=1.5x ; HR=1.4x?
Wishy
HR AR 7 is almost the same as HR AR 8. Then HR AR 8 is as fast as HR AR 9/10. Which is why DT becomes faster on 9 and 10.
Tanzklaue
the chart is wrong. HR makes the AR 1.4 times higher, easy divides the AR by 2. that's correct. but DT is the actual approachtime *0.66, and HT is the actual approachtime *1,5.
GoldenWolf

Tanzklaue wrote:

the chart is wrong. HR makes the AR 1.4 times higher, easy divides the AR by 2. that's correct. but DT is the actual approachtime *0.66, and HT is the actual approachtime *1,5.
Isn't x0.67 ? k I'm picky.
-GN
Depends on if you want to round up or down. 0.67x is technically more accurate, but it's not like it makes a difference while playing. Unless you like doing math while playing osu?
silmarilen

GoldenWolf wrote:

Tanzklaue wrote:

the chart is wrong. HR makes the AR 1.4 times higher, easy divides the AR by 2. that's correct. but DT is the actual approachtime *0.66, and HT is the actual approachtime *1,5.
Isn't x0.67 ? k I'm picky.
its /1.5
Wishy

silmarilen wrote:

its /1.5
Why not look at the numbers and make some simple math?

450 * x = 300
300/450 = x
2/3 = 0,66... = x

Which is the same as:

450 / 1,5 = 300.
silmarilen


durr
Wishy


haha5957
Approach Rate 1: 1800 ms
Approach Rate 2: 1650 ms
Approach Rate 3: 1500 ms
Approach Rate 4: 1350 ms
Approach Rate 5: 1200 ms
Approach Rate 6: 1050 ms
Approach Rate 7: 900 ms
Approach Rate 8: 750 ms
Approach Rate 9: 600 ms
Approach Rate 7 + DT : 600 ms
Approach Rate 8+ DT: 500 ms
Approach Rate 10: 450 ms
Approach Rate 9 + DT: 400 ms
Approach Rate 10 + DT : 300ms
GoldenWolf

-GN wrote:

Depends on if you want to round up or down. 0.67x is technically more accurate, but it's not like it makes a difference while playing. Unless you like doing math while playing osu?
Yes, and generally thinking about something else. It helps me to be less nervous.
Tanzklaue
it's not important if you divide by 1,5 or multiply by 0,66(666666666), the result is the same.

english is way easier when you aren't halfasleep =w=
buny
2/3
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