This article is a work in progress. Please expect frequent changes. Help and feedback is much appreciated! |
NotesEdit
- This is not official, and no proof has been made that Arcaea will add anything like this into the game.
- For every values, Vexaria [FTR] is example 1, while Singularity [FTR] is example 2.
- A value on the Memory Radar cannot exceeds 255. In other words, having a calculated value higher than 255 only makes that Memory Radar value 255. (e.g. Grievous Lady [FTR] which the note density is more than 10 note per second). Songs with difficulty rated "?" (like Ignotus Afterburn) are impossible to calculate this.
- Other songs are under construction.
- The legend follows the color for automatic Memory Radar value coercion. Whith the color for { Gray = value below 50, Green = value around 50 through 99, Blue = value around 100 through 149, Purple = value around 150 through 254, and Orange = value at 255 or value exceeds 255 to make the Memory Radar value 255 }.
DensityEdit
This value determines the raw density of the whole song, including the rests. To calculate it, first, multiply the notes per second (see Song Data) by 45, and let the calculated value D: D = NPS × 45 Then,
- If D is below 360, then devide it by 4: Density = D ÷ 4
- If D is above 360, then subtract 190 from D, multiply by 10 and divide by 17: Density = (D - 190) × 10 ÷ 17
Example 1 Vexaria [FTR]'s notes per second is approximately 5.69, so: D = 5.69 × 45 = 256.05 As D is below 360, we have: Density = 256.05 ÷ 4 ~ 64 (rounded to the nearest unit) Therefore, Vexaria [FTR] has a Density value on the Memory Radar of 64. Example 2 Singularity [FTR]'s notes per second is approximately 8.77, so: D = 8.77 × 45 = 394.65 As D is above 360, we have: Density = (394.65 - 190) × 10 ÷ 17 ~ 120 (rounded to the nearest unit) Therefore, Singularity [FTR] has a Density value on the Memory Radar of 120.
NotesEdit
- Many songs have high density but are less difficult is due to having many arcs (such as Fracture Ray [PRS]).
TapEdit
This value refers to the density of tap notes compared to the holds' density. To calculate it, first, devide the tap note count by 44% max combo, multiply to the song's D value, and let the calculated value T: T = Tap ÷ 44% MaxCombo × D Then:
- If T is below 450, then devide it by 3: Tap = T ÷ 3
- If T is above 450, then subtract 190 from D, multiply by 10 and divide by 26: Tap = (T - 190) × 10 ÷ 21
Example 1 Vexaria [FTR]'s tap note rate is approximately 47.27%, so: T = 47.27% ÷ 44% × 256.05 = 275.07 As T is below 450, we have: Tap = 275.07 ÷ 3 ~ 92 (rounded to the nearest unit) Therefore, Vexaria [FTR] has a Tap value on the Memory Radar of 69. Example 2 Singularity [FTR]'s tap note rate is approximately 67.42%, so: T = 67.42% ÷ 44% × 394.65 = 604.71 As T is above 450, we have: Tap = (604.71 - 190) × 10 ÷ 21 = ~ 197 (rounded to the nearest unit). Therefore, Singularity [FTR] has a Tap value on the Memory Radar of 197.
SkyEdit
This value refers to the density of the arc + sky notes compared to the floor's density. To calculate it, first, devide the arc + sky note count by 44% max combo, multiply to the song's D value, and let the calculated value S: S = Sky ÷ 44% MaxCombo Then:
- If S is below 450, then devide it by 3: Tap = S ÷ 3
- If S is above 450, then subtract 190 from S, multiply by 10 and divide by 26: Tap = (S - 190) × 10 ÷ 21
Example 1 Vexaria [FTR]'s arc + sky note rate is approximately 32.83%, so: S = 32.83% ÷ 44% × 256.05 = 191.07 As S is below 450, we have: Tap = 191.07 ÷ 3 ~ 64 (rounded to the nearest unit) Therefore, Vexaria [FTR] has a Sky value on the Memory Radar of 64. Example 2 Singularity [FTR]'s arc + sky note rate is approximately 54.20%, so: S = 54.20% ÷ 44% × 394.65 = 486.21 As S is above 450, we have: Tap = (486.21 - 190) × 10 ÷ 21 = ~ 141 (rounded to the nearest unit). Therefore, Singularity [FTR] has a Sky value on the Memory Radar of 141.
SpeedEdit
This value determines the peak speed of the fastest 5 floor + sky notes stream.
To derive it is easy. View the whole chart to select the fastest 5 notes stream, and calculate its density in notes per second, and let the calculated value P.
Then subtract 3 from P, multiply by 8, and add 30 to it: Speed = (P - 3) × 7 + 30. Example 1 Vexaria [FTR]'s fastest 5 note streams are 16th notes singles and 8th notes doubles in certain parts, and the BPM is 180, so the stream's NPS is 12. Then, Speed = (12 - 3) × 7 + 30 = 93 Therefore, Vexaria [FTR] has a Speed value on the Memory Radar of 93. Example 2 Singularity [FTR]'s fastest 5 note stream are 24th notes single jack in the near-end of "If you can" part, and the BPM is 175, so the stream's NPS is 17.5. Then, Speed = (17.5 - 3) × 7 + 30 ~ 141 (rounded to the nearest unit) Therefore, Singularity [FTR] has a Speed value on the Memory Radar of 141.
ConclusionEdit
The Memory Radar for Vexaria [FTR] and Singularity [FTR] can be drawn as follow:
File:Vexaria memory radar.jpg
Singularity memory radar.jpg