Hi Lumis,

Thanks for the feedback! We're actually looking at using an alternative documentation system which should hopefully make it a lot easier to find the info you need. Totally agree the burger menu can be a bit non-intuitive, writing web sites ain't as fun as DSP :(

I don't personally have any experience with MIPS platforms, do you have a board you try it out on? Can support as much as possible.

Thanks,
Joe

On 15 May 2016 at 15:48, Lumis Xulepth <lumis@xulepth.fr> wrote:
Hi Joe, hi list

On 2016-05-15 15:06, Joe White wrote:
Hi Chuckk,

I'm one of the developers of heavy. Apologies that you felt some
information was lacking, would be very interested in hearing more
about your experience and what wasn't answered.

 I don't know what Chuckk's comments precisely are, I just found myself several times looking for the documentation. Maybe the hamburger on the top right isn't obvious for everyone?
Again, I still haven't used it on a specific platform but I think that once logged in and having compiled a few patches, navigation is easier. I like to be able to switch implementations (C/Unity/Vst etc...) documentation easily! :)


The code that heavy generates should compile on any platform that has
a C99 compiler, and if it didn't we'd be very interested in looking
into why. There are no OS specific dependencies and you can even swap
out your own malloc, math, etc.. implementations.

 To your knowledge, has there been usecases or tests of Heavy on MIPS platform? Recently I've been thinking about using OpenWRT boards (most are MIPS32), generally CPU is 300-600MHz with minimal linux running on it for realtime audio.

Thanks for your answers.

Lumis/Fergus


The code is optimised for SSE, AVX and NEON instruction sets and we
also provide a single sample option for platforms where they are not
available (i.e. javascript)

Here's an example of integration with portaudio
https://github.com/enzienaudio/examples/tree/master/portaudio [3]


Thanks,
Joe

On 13 May 2016 at 23:22, Chuckk Hubbard <badmuthahubbard@gmail.com>
wrote:

Apropos of the heavy compiler, I was reading up on it and simply
moved on because of what seems to me a lack of information. There
was an allusion to it working for a wide variety of platforms and so
on, but no actual lists of this supposedly wide variety.
Does someone have an idea if it could compile Pd patches to work
without an OS for some architecture? Otherwise, why would you bother
with it? (that's not a rhetorical question)
Thanks.
-Chuckk

On Mon, May 9, 2016 at 6:39 PM, cyrille henry <ch@chnry.net> wrote:
hello,

I recently send a mail in this list describing my experience of
audio synthesis on microcontroler, but i did not use libpd.

i did not recommend libpd for microcontrolers.

in fact, I did not recommend audio processing on hardware that did
not have support for float arithmetic.
(only me or crazy nerd do that).

a micro controller to use is for example the cortex M4. You can
find them on the teensy hardware.
teensy also provide a audio synthesis library, and is supported by
arduino IDE.

You can also have a look at the heavy compiler if you want to
embedded a pd patch.

Cyrille

Le 09/05/2016 17:01, Christof Ressi a écrit :
Hi,

has anyone experience in using LibPd on a microcontroller?
I wanna try to run some rather basic DSP code on this guy here:

https://www.olimex.com/Products/IoT/MOD-WIFI-ESP8266-DEV/open-source-hardware
[1]
There are some existing Arduino/C++ frameworks and I thought I could
either write my own small DSP library in C++ or use LibPd.

I understood that LibPd is completely independed of audio drivers
and external libraries and since it's plain C code it should work on
everything that can run code. However, I have only encountered LibPd
in the context of other applications (processing, openFrameworks)
and mobile devices so far. Do you think it could work on an ESP8266?
I'm also a bit concerned about efficiency, as computation power is
rather limited:

"ESP8266EX is embedded with Tensilica L106 32-bit micro controller
(MCU), which features extra low
power consumption and 16-bit RSIC. The CPU clock speed is
80MHz. It can also reach a maximum
value of 160MHz. Real Time Operation System (RTOS) is
enabled. Currently, only 20% of MIPS has
been occupied by the WiFi stack, the rest can all be used
for user application programming and
development."

Christof

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Links:
------
[1]
https://www.olimex.com/Products/IoT/MOD-WIFI-ESP8266-DEV/open-source-hardware
[2] https://lists.puredata.info/listinfo/pd-list
[3] https://github.com/enzienaudio/examples/tree/master/portaudio
[4] http://www.badmuthahubbard.com

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