Amiga vol PCE vol Amiga vol PCE vol value db value db value db value db -- ---- -- ---- -- ---- -- ---- *64 0.0 31 0.0 *32 -6.0 27 -6.0 63 -0.1 31 0.0 31 -6.3 27 -6.0 62 -0.3 31 0.0 30 -6.6 27 -6.0 61 -0.4 31 0.0 29 -6.9 27 -6.0 60 -0.6 31 0.0 28 -7.2 27 -6.0 59 -0.7 31 0.0 *27 -7.5 26 -7.5 58 -0.9 31 0.0 26 -7.8 26 -7.5 57 -1.0 31 0.0 25 -8.2 26 -7.5 56 -1.2 31 0.0 24 -8.5 26 -7.5 55 -1.3 31 0.0 *23 -8.9 25 -9.0 *54 -1.5 30 -1.5 22 -9.3 25 -9.0 53 -1.6 30 -1.5 21 -9.7 25 -9.0 52 -1.8 30 -1.5 20 -10.1 25 -9.0 51 -2.0 30 -1.5 *19 -10.5 24 -10.5 50 -2.1 30 -1.5 18 -11.0 24 -10.5 49 -2.3 30 -1.5 17 -11.5 24 -10.5 48 -2.5 30 -1.5 *16 -12.0 23 -12.0 47 -2.7 30 -1.5 15 -12.6 23 -12.0 *46 -2.9 29 -3.0 14 -13.2 23 -12.0 45 -3.1 29 -3.0 *13 -13.8 22 -13.5 44 -3.3 29 -3.0 12 -14.5 22 -13.5 43 -3.5 29 -3.0 11 -15.3 21 -15.0 42 -3.7 29 -3.0 *10 -16.1 20 -16.5 41 -3.9 29 -3.0 9 -17.0 20 -16.5 40 -4.1 29 -3.0 * 8 -18.1 19 -18.0 39 -4.3 29 -3.0 * 7 -19.2 18 -19.5 *38 -4.5 28 -4.5 * 6 -20.6 17 -21.0 37 -4.8 28 -4.5 5 -22.1 17 -21.0 36 -5.0 28 -4.5 * 4 -24.1 15 -24.0 35 -5.2 28 -4.5 * 3 -26.6 13 -27.0 34 -5.5 28 -4.5 * 2 -30.1 11 -30.0 33 -5.8 28 -4.5 * 1 -36.1 7 -36.0 0 Minus infinity This table is for when you set the instrument volume level and/or use direct volume column of the corresponding track. Since you have an actual volume column on the XM format, I suggest doing the volume slides by hand instead of the function - to get more accurate slide. Besure to use the above table with the "*" as the volume points. That's not to say you can't use volume slides, because you can. It's just that there's a chance they'll sound slightly slower/rough. Most of the time though, they sound fine when converted (as I've converted a few songs/examples for testing). XM Env Amiga vol PCE vol XM Env Amiga vol PCE vol value value db value db value value db value db ----- -- ---- -- ---- ----- -- ---- -- ---- 256/00 64 0.0 31 0.0 ** 128/80 32 -6.0 27 -6.0 ** 255/ff 63 -0.1 31 0.0 31 -6.3 27 -6.0 62 -0.3 31 0.0 30 -6.6 27 -6.0 61 -0.4 31 0.0 29 -6.9 27 -6.0 60 -0.6 31 0.0 28 -7.2 27 -6.0 - 59 -0.7 31 0.0 108/6c 27 -7.5 26 -7.5 ** 58 -0.9 31 0.0 26 -7.8 26 -7.5 57 -1.0 31 0.0 25 -8.2 26 -7.5 56 -1.2 31 0.0 24 -8.5 26 -7.5 - 55 -1.3 31 0.0 - 92/5c 23 -8.9 25 -9.0 ** 216/d6 54 -1.5 30 -1.5 ** 22 -9.3 25 -9.0 53 -1.6 30 -1.5 21 -9.7 25 -9.0 52 -1.8 30 -1.5 20 -10.1 25 -9.0 - 51 -2.0 30 -1.5 76/4c 19 -10.5 24 -10.5 ** 50 -2.1 30 -1.5 18 -11.0 24 -10.5 49 -2.3 30 -1.5 17 -11.5 24 -10.5 - 48 -2.5 30 -1.5 64/40 16 -12.0 23 -12.0 ** 47 -2.7 30 -1.5 - 15 -12.6 23 -12.0 184/b8 46 -2.9 29 -3.0 ** 14 -13.2 23 -12.0 - 45 -3.1 29 -3.0 52/34 13 -13.8 22 -13.5 ** 44 -3.3 29 -3.0 12 -14.5 22 -13.5 - 43 -3.5 29 -3.0 44/2c 11 -15.3 21 -15.0 ** 42 -3.7 29 -3.0 40/28 10 -16.1 20 -16.5 ** 41 -3.9 29 -3.0 9 -17.0 20 -16.5 - 40 -4.1 29 -3.0 32/20 8 -18.1 19 -18.0 ** 39 -4.3 29 -3.0 - 28/1c 7 -19.2 18 -19.5 ** 152/98 38 -4.5 28 -4.5 ** 24/18 6 -20.6 17 -21.0 ** 37 -4.8 28 -4.5 5 -22.1 17 -21.0 - 36 -5.0 28 -4.5 16/10 4 -24.1 15 -24.0 ** 35 -5.2 28 -4.5 12/0c 3 -26.6 13 -27.0 ** 34 -5.5 28 -4.5 8/08 2 -30.1 11 -30.0 ** 33 -5.8 28 -4.5 - 4/04 1 -36.1 7 -36.0 ** 0 Minus infinity ** real equal + overlap of lower equal - overlap of above equal The XM volume value in the envelope area is actually not true 256 point system. It's 64 point scaled to 256 point. So every 4 points is a real volume for the format. On the PCE, we have it mapped ot the linear scale. That means you need to use this value points as exactly volume ranges for the points in the envelope. Sometimes it's hard to make the point equal exactly the value, so you can normaly subtract 4 from the XM value listed above to still get the correct range. For example. 152 is a legal PCE volume, but if you get the tracker to put a value exactly on the point, you can use 151,150, and 149. Because those are scaled values even on the tracker side. That is to say, they don't have any volume differences between those four values. So for 184, you have values 184-181 that are the same. And for 44, 44-41. Etc. When this is translated and converted over to the PCE, some point to point evenlope steps will be rougher than what the tracker puts out. That's unevitable, unfortunately. Even sound engines in existing PCE games that use scaled numbers for volume envelopes, have this very same problem. A native tracker to show that shows the volume ramp in exact PCE volumes would be best, of course.