After a default configure and make, the play examples fails as follows on the Mac:

> ./play /w/s/wav/mandolin1.wav 44100
2017-04-15 14:49:13.384 play[80868:1752912] Error loading /Library/Audio/Plug-Ins/HAL/JackRouter.plugin/Contents/MacOS/JackRouter:  dlopen(/Library/Audio/Plug-Ins/HAL/JackRouter.plugin/Contents/MacOS/JackRouter, 262): Library not loaded: /System/Library/Frameworks/Jackmp.framework/Versions/A/Jackmp
  Referenced from: /Library/Audio/Plug-Ins/HAL/JackRouter.plugin/Contents/MacOS/JackRouter
  Reason: image not found
2017-04-15 14:49:13.385 play[80868:1752912] Cannot find function pointer New_JackRouterPlugIn for factory 7CB18864-927D-48B5-904C-CCFBCFBC7ADD in CFBundle/CFPlugIn 0x7fbf83c0e720 </Library/Audio/Plug-Ins/HAL/JackRouter.plugin> (bundle, not loaded)

I am using JACK as installed by MacPorts. I do not find a Jackmp framework at Apple. In any case, a new dependency seems to be needed in configure.

Makefile is slightly dyslexic, with the following results:

$ cd src
$ ./configure -prefix=/Users/r/Projects/Mu/usr
...
$ make install
...
cp -r ../include/*.h /Users/r/Projects/Mu/usr/include/stk
install -d /Users/r/Projects/Mu/usr/lib
install -m 644 libstk.dylib.4.4.4 /Users/r/Projects/Mu/usr/lib
install: libstk.dylib.4.4.4: No such file or directory
make[2]: *** [install] Error 71
make[1]: *** [install] Error 2
make: *** [/Users/r/Projects/Mu/usr/lib/libstk.a] Error 2

It appears that Makefile disagrees with itself. Around line 90, it's creating 'libstk.4.4.4.dylib':

# Makefile line 90
$(SHAREDLIB) : $(OBJECTS)
    $(RM) -f $(@) $(SHAREDLIB).$(MAJOR) $(SHAREDLIB)
    $(CC) $(LDFLAGS) -fPIC -dynamiclib -o libstk.$(RELEASE).dylib $(OBJECT_PATH)/*.o $(LIBS)
    $(LN) -s libstk.$(RELEASE).dylib $(SHAREDLIB)
    # $(LN) -s libstk.$(RELEASE).dylib $(SHAREDLIB).$(MAJOR)

... but around line 100, it's trying to install 'libstk.dylib.4.4.4':

install: $(SHAREDLIB) install-headers
    install -d $(DESTDIR)$(PREFIX)$(LIBDIR)
    install -m 644 $(SHAREDLIB).$(RELEASE) $(DESTDIR)$(PREFIX)$(LIBDIR)
    ln -sf $(SHAREDLIB).$(RELEASE) $(DESTDIR)$(PREFIX)$(LIBDIR)/$(SHAREDLIB)
    ln -sf $(SHAREDLIB).$(RELEASE) $(DESTDIR)$(PREFIX)$(LIBDIR)/$(SHAREDLIB).$(MAJOR)

According to https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryDesignGuidelines.html#//apple_ref/doc/uid/TP40002013-SW19, it appears that the correct name would be libstk.4.dylib, where 4 is the major version number.

I'd change it, but I have no idea how many other apps depend on the name of the shared library.

Hi. As part of my other audio experiments I wanted to incorporate some wave/sound generating capability. I decided stk was the best option based on several criteria. As the current VS build configs are stale, I updated them to support VS2017. I also spent some time debugging the ASIO support but didn't quite get through that completely.

So, I would like to formalize these steps and give back my learnings. My thought is to branch and create a new project folder with an updated win stk build + ASIO + OSC server (because this is what I really want for my experiments). I can do this with VS but also strongly consider using Qt/mingw/QMake/QtCreator which I consider a superior environment for C++ applications (even vanilla ones that don't use Qt libs).

If this is acceptable and successfully implemented, then consideration can be given to updating the other projects.

AC_CHECK_LIB(asound, snd_pcm_open, , AC_MSG_ERROR(Jack support also requires the asound library!))], )

Jack is independent of ALSA in both sound and MIDI.

I am the author and maintainer of Csound opcodes that wrap the STK instrument classes (https://github.com/csound/csound/blob/develop/Opcodes/stk/stkOpcodes.cpp). It would greatly facilitate encapsulating the STK in Csound and in other projects if there were an option to bring all of the rawwaves wavetables into RAM and into the actual source code such that there would be no need to read this data from storage and no need to locate this storage at run time.

Thank you for the examples/*.vcxproj files. I was able to get a custom project built. However, for convenience, I'd like to build a .lib for Windows.

I've installed MinGW. I have C:\MinGW\bin\autoconf. If I launch a MinGW 64 prompt, cd to the stk directory, and type autoconf I get bash: autoconf: command not found. If I type C:/MinGW/bin/autoconf I get C:/MinGW/bin/autoconf-2.68: line 501: /mingw/bin/autom4te-2.68: No such file or directory.

I also have C:\MinGW\share\autoconf\autoconf but am not sure what good it is.

I would really appreciate a few more troubleshooting steps for the Windows installation. Thank you!

I just ran into this problem while working with a sound card that supports 24 bit inputs and below. I was requesting RTAUDIO_FLOAT32 as my output format, but because my card only supported 24, 16, and 8 bit inputs, it defaulted to 24 bit. The callback function for openStream was getting called twice as often as it should, and the internal stream time reflected that (i.e., the internal time thought 10 seconds had passed when only 5 had). This was true no matter the target output format AFAICT, which makes me think the S24 class (defined in RTAudio.h) is broken. For sure it was broken when my target output was Float 32.

I "fixed" this by commenting the code

deviceFormat = SND_PCM_FORMAT_S24; if ( snd_pcm_hw_params_test_format(phandle, hw_params, deviceFormat ) == 0 ) { stream_.deviceFormat[mode] = RTAUDIO_SINT24; goto setFormat; }

so the input format from the card was SND_PCM_FORMAT_S16 by default. Perhaps the inJump/outJumps are miscalculated or there is a bug in the .asInt() method?

Edit - I should mentioned this was compiled for an Armv7 board in Little Endian.

(Preface: Previously, https://github.com/thestk/stk/issues/28 co-mingled two separate issues: naming problems in the installation of the dynamic library and need for absolute pathnames within the dynamic library. I've migrated out the comments specific the latter to this issue.)

When I create an executable linked against the dynamic library, I get:

Mu[~/Projects/Mu/examples]$ ./mune31
dyld: Library not loaded: libstk.dylib.4.4.4
  Referenced from: /Users/r/Projects/Mu/examples/./mune31
  Reason: image not found 
Trace/BPT trap: 5

When I run otool -L on the executable, I can see why:

./mune31:
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
    /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio (compatibility version 1.0.0, current version 1.0.0)
    /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 855.16.0)
    /System/Library/Frameworks/CoreMIDI.framework/Versions/A/CoreMIDI (compatibility version 1.0.0, current version 73.0.0)
    /Users/r/Projects/Mu/usr/lib/libgsl.0.dylib (compatibility version 18.0.0, current version 18.0.0)
    libstk.dylib.4.4.4 (compatibility version 0.0.0, current version 0.0.0)
    /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 120.0.0)

For reasons beyond my ken, libstk.dylib.4.4.4 is a relative pathname. I can fix this manually with install_name_tool:

install_name_tool -change libstk.dylib.4.4.4 /Users/r/Projects/Mu/usr/lib/libstk.dylib.4.4.4 ./mune31

And everything is happy now:

Mu[~/Projects/Mu/examples]$ otool -L ./mune31
        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
        /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio (compatibility version 1.0.0, current version 1.0.0)
        /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 855.16.0)
        /System/Library/Frameworks/CoreMIDI.framework/Versions/A/CoreMIDI (compatibility version 1.0.0, current version 73.0.0)
        /Users/r/Projects/Mu/usr/lib/libgsl.0.dylib (compatibility version 18.0.0, current version 18.0.0)
        /Users/r/Projects/Mu/usr/lib/libstk.dylib.4.4.4 (compatibility version 0.0.0, current version 0.0.0)
        /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 120.0.0)

... but this just goes to prove that I have much to learn. Any suggestions?

It seems that the sample rate is a global static variable in the Stk class, which makes it impossible to use the framework in a multi-samplerate environment (eg. with oversampling).

Is there a reason why it can't be made a member variable of the Stk base class and adding a virtual function

// Two new members:
double objectSampleRate = -1.0;
bool usingObjectSampleRate = false;

/** Can be used to set a samplerate for this object.
 If you call this method, this class instance will use this value 
instead of the global sample rate value. */
virtual void setObjectSampleRate(double sampleRate)
{
    objectSampleRate = sampleRate;
    usingObjectSampleRate = true;
}

/** Returns the sample rate that was set with a call to setObjectSampleRate()
 or the global samplerate as fallback. */
double getObjectSampleRate() const noexcept
{
    if(usingObjectSampleRate)
        return objectSampleRate;
    else
        return getSampleRate() // return the global static as fallback
}
}

Also, this way functions which need to update their state when the samplerate changes can simply override the function:

class DerivedStk: public Stk
{
    void updateState()
    {
         // setup the processing
    }

    void setObjectSampleRate(double sampleRate) override
    {   
        Stk::setObjectSampleRate(sampleRate);
        updateState();
    }
};

DISCLAIMER: the naming is poor (ideally it should be just called setSampleRate() / getSampleRate(), but it allows 100% backwards compatibility to legacy code.

EDIT: Also, the handling should be more flexible - the API states that you can't change the samplerate after object instantiation, which might happen for several reasons (the end user changing audio device settings might be the most prominent example).

At least src/include/asio.{h,cpp} are part of the steinberg sdk, which is licensed under quite strict terms:

1.1
The object of this agreement consists of the Steinberg ASIO (Audio
Stream I/O) Software Development Kit version 2.3, respectively any
preview version of this Kit, comprising of documentation, example code,
and several ASIO examples. These are described hereinafter as the
"Licensed Software Developer Kit".

The license goes on to include other terms which seem to prohibit
modification or redistribution in most cases:

2.3
The Licensee has no permission to sell, license, give-away and/or
distribute the Licensed Software Developer Kit or parts of it for the
use as software developer kit in any way, for example, integrated in
any framework application, on any medium, including the Internet, to
any other person, including sub-licensors of the Licensee or companies
where the Licensee has any involvement. This includes re-working this
specification, or reverse-engineering any products based upon this
specification.

2.4
In case the Licensed Software Developer Kit is modified, it shall not
be published, sold or distributed without agreement of Steinberg.
Furthermore, the naming of the Licensed Software Developer Kit shall
not include “ASIO 2.3 SDK” or any combination containing the VST brand
without permission of Steinberg.

The files should probably be stripped from the stk sources.

Hi!

I got Phonemes::formantFrequency: index is greater than 31! and it saddened me a bit. If you give FMVoices a Spectral Tilt argument of 128.0 it will ask for phoneme 32.

Hi, I've tried severals way to output Stk::RtAudio into an Icecast server

• piping binary into ffmpeg
• using Stk::InetWvOut
• recording into a file and playing it with ffmpeg

What could be the easiest solution ?

Thanks,

The demo project definition on windows was outdated, causing it to not build properly.

The fix was to add the two missing cpp file to the project definition (Iir.cpp and Recorder.cpp) as well as define _USE_MATH_DEFINES to allow the compiler to use M_SQRT1_2.

This change also fix a compiler warning caused by a mismatch between the target name, which was demo.exe and the linker's output file which is stk-demo.exe.

Hi, I was just wondering If I can use the sinewave class to get a sine of an specific duration. I've seen there is an addTime method but I am not sure this is what I'm looking for, since in the example is not used. Thanks

When I try to build STK in /bin/dash shell, in configuration phase I get the following errors:

checking for audio API... ./configure: 6162: test: x: unexpected operator
./configure: 6337: test: x: unexpected operator
./configure: 6398: test: x: unexpected operator
./configure: 6504: test: x: unexpected operator
./configure: 6558: test: unexpected operator

It works fine in bash.

Hi, I am developing Karaoke app in android and i am using oboe livestream to record a voice and merge with music using ffmpeg. and i want to add effects to output audio file. Is it possible to process the audio to get effects? If you know please help me or please guide me. Thanks in advance

I discovered that reverb effect is changing sound after I create remove repeatedly that I made simple test like this and it proved my theory that some value or something get modified and is shared across instances..

You can reproduce it like this:

 stk::FreeVerb *freeVerb20 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb19 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb18 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb17 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb16 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb15 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb14 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb13 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb12 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb11 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb10 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb9 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb8 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb7 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb6 = new stk::FreeVerb();
    stk::FreeVerb *freeVerb = new stk::FreeVerb();

Here just use the last instance .. It has broken sound..
I am trying to find out why now but not yet with luck.