ok, got some numbers
first… there is around 650 mb free, once synthor is running
(synthor surprisingly takes 1.2gb of the 2gb available! )
for test, I used a stereo audio file thats recorded at 44khz, 32bit, and weighs in at 59mb.
each time it loaded, I could see it used almost double that (thats not surprising, it’ll be uncompressed) so ~ 120mb.
I could get away fine with loading it 4 times , still had 110mb left
(remember its stereo so taking two sampler slots, also rememeber this 110mb left)
5-6 times, and basically your out of memory
7th time it crashed … ok, not surprising memory was well and truely out by then!
of course, this is JUST your samples (and sample player) , you still need the rest of your patch…
so I had a quick look at the memory usage of some of patches… and typically they seem to around 70-90mb (not using samples/wavetables)
there is another option…
the recorder - this is very cool because it does NOT read files into memory, rather plays from sdcard
however, unfortunately this has limitations (in your context)
a) it cannot loop
i really wish it had this option (@bert ), this would be great for having something played in the background.
b) you can only play back one file at a time
(but it can be multi-channel, so you could be creative here)
c) you can only send it to an physical output
so you cannot send it to a module for an FX, or send it out via usb.
of course, your other option if its just playback / looping , and if you want to be able to use the SSP modules as fx etc… that is use a separate module (or pedal/rPI) to to do the playback and feed that audio into the SSP.
this is actually, something Ive been trying out…
Ive got a squarp rample that plays back from its sdcard.up to 4 channels (e.g. 2 stereo) … as its playing from sdcard files can be any left.
it loop, one shot, sync etc , plus has some interesting/useful fx/ slicing etc.
(its pretty well priced too)
whats also useful is you can trig it to load new samples from midi… or switch layers via cv.
as i said an area im experimenting with, but have started to come to the conclusion perhaps its easier to do this sample stuff on the Rample, and leave the SSP for the more juicy interesting stuff