I make a vanilla patch to open a stereo audio file longer than 4000000 samples.
His name is "bigwave" : bigwave.zip

I work mostly with long stereo files, so I use this all the time.

I share it with you.
I hope you enjoy

@Rodila Hello Rodila. If you need even bigger files (hours of stereo) this might be useful.......
waaaav.zip
It takes a while to load very big files, but will do multi-track as well. Of course it depends how much ram you have. Pd is not efficient at waveform drawing like this. If you hide the tables away as you have sensibly done it might be faster.......
David.

Thanks for the patch,

I try to open a 1 hour file with my "bigwave" patch, and it work perfectly. I don't need to see the waveform.

i buid this patch for long audio files, mainly for syncing audio to feature length movies, the audio is not written into an array, so its less flexible but it works for my purpose longaudiojumps.pd

if i load a 90 minute file into bigwave.pd, i get this error message:
...
soundfiler_read: truncated to 4000000 elements
soundfiler_read: truncated to 4000000 elements
soundfiler_read: truncated to 4000000 elements
soundfiler_read: truncated to 203948928 elements
pd: resizebytes() failed -- out of memory
resize failed