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c++-portaudio

README.md

Example

This example uses PortAudio to play audio from the bot and record audio from the user.

Dependencies

PortAudio

Linux

sudo apt-get install libportaudio2 portaudio19-dev

macOS

brew install portaudio

Windows

On Windows we use vcpkg to install dependencies. You need to set it up following one of the tutorials.

The portaudio dependency will be automatically when building.

Building

Before building the example we need to declare a few environment variables:

RTVI_SDK_PATH=/path/to/rtvi-client-cxx
DAILY_RTVI_SDK_PATH=/path/to/rtvi-client-cxx-daily
DAILY_CORE_PATH=/path/to/daily-core-sdk

Linux and macOS

cmake . -G Ninja -Bbuild -DCMAKE_BUILD_TYPE=Release
ninja -C build

Windows

Initialize the command-line development environment.

"C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Auxiliary\Build\vcvarsall.bat" amd64

And then configure and build:

cmake . -Bbuild --preset vcpkg
cmake --build build --config Release

Cross-compiling (Linux aarch64)

It is possible to build the example for the aarch64 architecture in Linux with:

cmake . -G Ninja -Bbuild -DCMAKE_TOOLCHAIN_FILE=aarch64-linux-toolchain.cmake -DCMAKE_BUILD_TYPE=Release
ninja -C build

Usage

After building the example you should be able to run it, just make sure you have your Daily Bots API key setup:

export DAILY_BOTS_API_KEY=...

Here's how you would try it:

./build/example_audio -b https://api.daily.co/v1/bots/start -c config_voice_2024_10.json

You can take a look at the sample configuration file. This file uses the voice_2024_10 Daily Bots profile.

You can also use another profile such as openai_realtime_beta_2024_10. A configuration file is also provided. In this case, Daily Bots requires that you provide your own OpenAI Realtime API key which you can do directly in the configuration file for testing purposes, however it's recommended that you use a proxy server that makes the Daily Bots request for you as explained here.

After adding your OpenAI Realtime API key you can run it with:

./build/example_audio -b https://api.daily.co/v1/bots/start -c config_openai_realtime_beta_2024_10.json