用于音频插件的C ++音频库？

Question

I am interested in creating audio plugins like a compressor or synthesizer VST plugin for example. Though I do want to start with something as simple as a distortion plugin.

And I thought I will use C++ for it.

I am wondering which audio library would be a good fit for this case?

My inspirations are the Sonalksis compressor and Reason's Mälstrom for example.

Answer 1

I suggest you look at the following resources:

• Faust generates C++ code (among other languages) from a high level description of dsp processes. It can output code that uses a number of audio APIs and GUI libraries.
• Juce . Already mentioned by @SSteve is a cross platform C++ library with a focus on audio applications.
• STK Is a platform-independent library for sound synthesis and some DSP.
• If you can get your hands on The Audio Programming Book , do it!
• Another option is to describe your DSP process using PD and then use LibPD to embedd it in your C++ program. I did this for a musical program that ran on an embedded device, you can see a full tutorial here and the code here .
• RTAudio and RTMidi has also been very helpful for me.
• Another tricky issue regarding audio programming in C++ is inter-thread communication. I suggest you read this .

Answer 2

Juce不是一个糟糕的开始。

Answer 3

Here are some more that may be of interest:

1. WDL/iPlug, Oli Larkin Edition : This one has a lot of user-contributed routines and controls at the Cockos forum thread for it (a very long thread). However, if you check the issues, you'll find that the RTAS/AAX plugins have a stability problem on PT; having to do with mutexes. It boasts a lot of plugins made with it.
2. RackAFX : This one creates a project template for you, and allows you to define GUI elements. The DSP is all up to you in Win32 C++, but it creates some of the handling code for the GUI. Once you have compiled yer plug, it also has a form designer of sorts, to allow you to configure and rearrange the GUI elements. It doesn't support AAX/RTAS plugins, however.
3. SynthEdit : Maybe not one you'd expect to find in a C++ list, but I believe it can emit C++ code - for modifying or for learning. Yes, it does do audio plugins, and not just instruments.
4. "A Collection of Useful C++ Classes for Digital Signal Processing" is another that implements a lot of useful techniques, and relies on C++ templates a lot; but fair warning: Its own programmer thinks its class libraries are hard to read, and horribly designed.
5. Finally, an STK author claims that CLAM, Csound, and SndObj are also currently supported toolkits. Csound is its own language, but CLAM and SndObj have C++ libraries. I don't know much about them, though.

BTW: Faust looks interesting, but its website is currently a stub with eg no downloads. However, its SourceForge page is up. On the down side, I don't think it supports VST3 without a third-party hack. On the up side, it is one of the few that supports Linux plugins. FWIW: JUCE charges a lot for a commercial license for just one plugin, and more yet for a license for 2+ commercial plugins. It would work fine if the plug is just for you, or is non-profit. It is one of the few mentioned here that supports AAX and RTAS.