portaudio | source C language library for real-time audio input | Audio Utils library

I am trying to install pyaudio from PowerShell(vscode) but I am getting error.

I'm just trying to copy the input buffer of portaudio in a callback function. Thats my callback:

I'm attempting to use portaudio with deepspeech (both using Rust bindings) to create a speech recognition program. I can see the data when I log the buffer, but when attempting to use intermediate_decode, I always get blank results. I'm assuming I'm either configuring the audio incorrectly, or setting up the model incorrectly. I've spent a lot of time just getting to this point (fairly new to handling audio) and any help would be appreciated!

This is the full source code:

C:\Users\lansz>pip install pyaudio

I very new concepts of audio processing and have a basic knowledge of C++, my end goal is to create a means to measure harmonic distortion on line-in audio; my thoughts are to write audio-in stream to a circular buffer, then read from the circular buffer to an FFT function; from the FFT data I can workout audio distortion.

So far I'm using Portaudio to write streamed audio to the circular buffer from it's streaming input callback; I've created a Thread that checks if there's any data in the circular buffer, if there is data, read it into a temporary buffer. As a means of a simple test, I'm merely echo'ing the number of elements to read from the circular buffer, this works but after a second or so, produces an incorrect value for 'read elements available' (18446744073709542400) followed by a Segmentation error; sample output and my code below:

I am trying to learn PortAudio, I am following the tutorials in doc/src/tutorials, this is the code in writing_a_callback.dox:

I am trying to install pyaudio module in my terminal for python, and I got this error.

rc/_portaudiomodule.c(29): fatal error C1083: Cannot open include file: 'portaudio.h': No such file or directory error: command 'C:\Program Files\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.27.29110\bin\HostX86\x86\cl.exe' failed with exit status 2

Help me please

I'm trying to record speaker output with PyAudio. I have BackgroundMusic installed, which claims to allow recording system output. I don't think it's the issue but I could be wrong.

Code

I’m using C++ on visual studio 2019 and having issues trying to link my project to PortAudio. When I use the RtAudio header file in a project, I get the error message "MidiInDummy: This class provides no functionality." Most solutions I can find online say to add __WINDOWS_MM__ to the pre-processor definitions and link to winmm.lib (as instructed on https://www.music.mcgill.ca/~gary/rtmidi/) However, having done this, I am still getting the same problem.