从驱动开发的角度大致了解一下 RK3399 Audio 功能。 阅读下面的内容需要有 audio driver 相关的开发经验，不过我也会尽量给出必要的概念说明。 ALSA System on Chip. A Linux kernel subsystem created to provide better ALSA support for system-on-chip and portable ...

最近一直在研究 ALSA 驱动，停了一段时间，突然发现Asla 驱动不是一天两天能讲清楚的。 ASoC (ALSA System on Chip) ，是建立在标准ALSA驱动层上，为了更好地支持嵌入式处理器和移动设备中的音频Codec的一套软件体系。在ASoc出现之前，内核对于SoC中的音频已经有部分的 ...

Edinburgh, Scotland — Wolfson Microelectronics plc today rolled out an integrated codec with a filterless Class-D stereo speaker driver that is said to consume 10 milliwatts in playback mode. The ...

The WM8904 low-power codec with Class W headphone and line drivers is based on the company’s Class W amplifier technology, which intelligently tracks the actual music signal level and uses an adaptive ...

AR34S3E is a mass-production proven sigma-delta mono CODEC designed for portable device applications. It contains PWM (pulse-width-modulated) controll ...