Emu XL-7 & MP-7 User's Group

I experimented a bit more with this. The thud is definitely in the sample, and there's something weird going on in the amplifier envelope. With the release time set low, the thud happens every time, when advanced there's a longer and longer grace period. It almost sounds like the attack is slowed down if the envelope hasn't passed the release phase.

I tried with a couple of adjacent Instrument samples which also a lot happening at the very start of the sample, but they did not behave like the Sonics sample.

One note though: the preset is set to 'Legato fingered mode' which means it is monophonic. When switching Solo mode off, it goes polyphonic, which since now there is a voice allocation algorithm cylcing through the voices instead of playing the same voice all the time, causes the thud to appear every time.

My theory at the moment is that the particular sample in question has something going on at the very beginning at the sample, at the same time as there is something odd with at least the volume envelope in that the attack is slowed down if it hasn't reached the idle state after the release phase. Seems like some sort of bug. I should look at the signal on an oscilloscope (or waveform editor) to see exactly what it looks like.

/Ricard