What’s new Roc Toolkit implements real-time streaming over unreliable networks like Internet and Wi-Fi. It works on Linux and macOS and provides C library, CLI tools, modules for PulseAudio and PipeWire, and Android app. You can find step-by-step tutorial here. The 0.3 release was focused on: reducing minimum allowed …

Signal Estimator project issues This one implements a tool (both CLI and GUI) for measuring audio latency and glitches. The idea behind the tool is simple: you have an audio loopback that connects audio output to audio input; the tool writes impulses to the output, waits until the same impulses are received from the input, and …

Table of contents What’s new? Linux desktop (PulseAudio) Linux desktop (PipeWire) Raspberry Pi (ALSA) Raspberry Pi (PulseAudio) macOS Android Troubleshooting What’s new? This article is an updated version of previous tutorial. An overview of the new release is available here. There are two main changes that affect …

(Roc Droid logo) What is Roc? Roc is a toolkit for real-time streaming over unreliable networks. It works with desktop and embedded Linux, ALSA, PulseAudio, PipeWire, macOS, and Android. For a quick intro, see project repo and two previous articles: 1, 2. Summary Full changelog is available here. The main focus of this release …

Table of contents What is Roc? What’s new? Ubuntu desktop Raspberry Pi (ALSA) Raspberry Pi (PulseAudio) macOS Android / Termux UPDATE You can find tutorial updated for 0.2.x release series in this article. What is Roc? Roc is an open-source toolkit for real-time audio streaming over the network. You can learn about the …

What is Roc? I’m happy to announce the first release of Roc Toolkit, version 0.1.0! Roc provides a C API for real-time audio transport. The user just writes a stream to the one end and reads it from another end. Roc, in turn, performs encoding and decoding, and, more importantly, deals with the problems related to the …

Intro Last few years I was working on Roc Toolkit, an open-source solution for real-time media streaming over the network. Due to lack of free time, we postponed release several times, but now it’s almost ready. This article is, inter alia, some kind of a pre-release announcement. You can read more about the project here. …

Table of contents Preface About PulseAudio High-level components Key abstractions D-Bus API C API Protocols and networking Device drivers Sound processing Sample cache Stream management Time management Power saving Automatic setup and routing Desktop integrations Compatibility layers Server internals Module list GUI tools …

Table of contents Overview FFmpeg SoX ALSA (libasound) PulseAudio libsndfile Other libraries Notes Overview I was playing with various media libraries recently and have prepared several snippets demonstrating how one can decode and play an audio file in two separate steps. The source code is available on GitHub here and there. …