I just re-discovered Cabbage last week and in general have been very impressed with both Cabbage and the sound quality of Csound.
I have been doing R&D toward the end of deciding on a platform to implement my DSP / app / plugin ideas in a way that will facilitate portability to Unity as well as cross platform VSTs and apps for iOS and ideally allow even the potential of hardware-embedded linux/ARM as my main synthesizer product releases thus far have been hardware modules based on ARM cortex m3 and SpinFX FV-1 DSP chip which uses its own Assembly language/opcodes .
In my explorations thus far my current group of potential candidates I have been evaluating are MAX's Gen~, FAUST, PureData>Heavy/LibPD, and now the last one I want to evaluate that I am finding particularly enticing at the moment is Cabbage/Csound.
I already know that FAUST allows single sample feedback with the ~ operator, and in general is a really interesting and portable language that offers the ability to generate assets for many different platforms, including Csound. Apparently there is even a csound opcode for faust that uses the llvm jit compiler I think, which I am just finding at this moment in my web search : http://www.csounds.com/manual/html/faustgen.html
What I wanted to ensure is that I have the capability to do single sample processing in detail for custom zero delay feedback / nonlinearities and more analogue style filters and distortion.
Is this faust Csound opcode available in Cabbage? or does Csound have the ability to work down to that level by itself? maybe with the framebuffer opcode?
I am also seeing these opcodes in the Whats New in Csound 6.11.0 doc at https://csound.com/docs/manual/PrefaceWhatsNew.html :
zero delay filters -- zdf_1pole_mode, zdf_2pole_mode, zdf_ladder, zdf_1pole and zdf_2pole, diode_ladder, K35_hpf and K35_lpf.
Also, is it possible to generate C/C++ code from a Csound file as I can with Heavy/PD, Gen~, and FAUST?
Is the reverse possible as well, adding custom opcodes?
In my initial impressions of the structure of the Csound language, it reminds me a bit of the FV-1 DSP chip that I did a ton of work on for a couple years, I love the minimalism and bare-metal single sample approach in their assembly language, you have opcodes in there for example RDAX - read data at address x, WRAX - write data address, and built in sin/cosine LFOs and ramp generators, as well as circulating delay memory pointers and allpass filters/lowpass/ highpass etc. And with just this handfull of direct opcodes that use the chips hardware I was able to create everything from reverbs to physical models and even granulation/scrubbing : https://www.instagram.com/p/BNf9BNIAS4j/
One thing I really liked about the FV-1 language was the linear nature, you can jump forward to a block and skip over parts, but never jump back, and within its limit of 128 ops per sample, each operation is acting on the result of the previous value left in the accumulator. This makes it very easy to act low level as possible.
basically, I know DSP and several ways to implement, I want to see if Csound is capable of some of the things I want to do low level, and if Cabbage is likewise able to access these currently.