Based on the company’s WiSmart EC32S13 WiFi module, Econais now offers the WisAudio reference design for streaming raw uncompressed (WAV) and compressed (MP3, FLAC, AAC) audio over WiFi. In addition, DLNA 1.5 support makes it compatible with DLNA-capable smart phones, smart TVs, game consoles, and PCs.
WisAudio performs on-the-fly audio decoding, which requires less bandwidth than the conventional WAV approach, while retaining the ability to play WAV audio. Econais reports that the reference design delivers high sound quality for WAV and FLAC streams, yet consumes minimal power when using encoded audio. The design is compact and can fit into a headset or speaker.
WisAudio’s onboard EC32S13 module with embedded MCU runs the TCP/IP stack, as well as the authentication and security protocols. Audio decoding and processing is performed by a VLSI VS1053 audio codec to natively support WAV, OGG, MP3, AAC, WMA, FLAC, and MIDI formats with on-the-fly audio decoding. The evaluation board also includes an embedded chip antenna with a range of up to 400 m in open space. Optionally, an external antenna can be mounted on the board.
View a demo video to learn more about the WisAudio reference design.
WisAudio product brochure
This article originally appeared on EDN.