librtaudio4 software package provides C++ library for realtime audio input/ouput, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install librtaudio4
librtaudio4 is installed in your system.
Make ensure the librtaudio4 package were installed using the commands given below,
$ sudo dpkg-query -l | grep librtaudio4 *
You will get with librtaudio4 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | librtaudio4 |
| Version | 4.0.12~ds0-1ubuntu1 |
| Description | C++ library for realtime audio input/ouput |
| Sub Section | libs |