Industry Expert Blogs

In MIPI Soundwire: Digital Audio Simplified, we mentioned that digital audio formats including Pulse Code Modulation (PCM) and Pulse Density Modulation (PDM) are target applications for MIPI Soundwire. Here we will discuss Digital Audio Streams and Channels.

The figure below illustrates how Digital Audio is transferred between Codecs and System memory via Digital Audio Streams. A Codec (short for encoder-decoder) converts analog signals to digital streams, or vice versa. Digital Audio Stream is a logical or virtual connection, which may have one or many channels. For example: Stream-3 has two channels (Stereo) which are decoded by both Codec-A and Codec-C, while Stream-2 has a single channel (mono) – the input side of the modem.

Click here to read more ...