For a slightly more sophisticated example, see the audio example (source code in the SDK directory examples/api/audio), which lets users specify a frequency for the sine wave and click buttons to start and stop audio playback. The module starts playing the audio samples as soon as it is loaded into the browser.

The code examples in this section describe a simple Native Client module that generates audio samples using a sine wave with a frequency of 440 Hz. The browser calls a function in the Native Client module to fill a buffer with audio samples every time it needs data to play from the audio stream. The API generally works as follows: A Native Client module creates an audio resource that represents an audio stream, and tells the browser to start or stop playing the audio resource. The Pepper audio API provides a low-level means of playing a stream of audio samples generated by a Native Client module.

This section describes how to use the Pepper audio API to play an audio stream. Application threads and real-time requirements.

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