True, but for my own applications I'm not so interested in reverbs and am more interested in a few delay lines, as discrete echoes. So in that regard, having 2.5 seconds to use rather than 150 msec makes this a lot more usable. Ultimately I think I would have one of these boards as some sort of utility delay in my Eurorack setup (attached to the side of the rack as I have no further space left inside it!).
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Thu, Apr 16, 2020 at 7:06 AM Stéphane Letz <l...@grame.fr> wrote: > About memory access, my current understanding is that external memory > access is much slower compared to internal one. So there is no perfect > setup AFAICS. > > Stéphane > > > > Le 16 avr. 2020 à 16:01, Gary Worsham <gary.wors...@gmail.com> a écrit : > > > > I just found a configuration option (under "make menuconfig") that > allows you to set the external SPI RAM to be usable by malloc(). At first > glance this allows configuration of delays up to about 2.5 seconds using > ef.echo(), whereas previously I could only get about 150 msec. However, > 3.5 seconds is too much - causes runtime errors and constant reboot. 2.5 > seconds is OK for most of my my needs. > > > > Under: > > Component config → ESP32-specific → SPI RAM config > > > > Select: > > (X) Make RAM allocatable using malloc() as well > > > > I was able to get a jcrev simple reverb block working. Next I tried a > mono_freeverb and wasn't quite as lucky. Sound is distorted and I started > getting watchdog timer errors, indicating most likely that there's too much > processing being attempted. > > > > Virus-free. www.avast.com > > _______________________________________________ > > Faudiostream-users mailing list > > Faudiostream-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/faudiostream-users > >
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