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Projects & Blogs - Speex Audio Codec - Silicon Labs
https://community.silabs.com/s/share/a5U1M000000knjUUAQ/speex-audio-codec?language=en_US
Speex is a free audio codec which provides high level of compression with good sound quality for speech encoding and decoding. Speex is an open source and patent-free audio compression format designed for speech. Speex is based on CELP (Code-Excited Linear Prediction) and is designed to compress voice at bitrates ranging from 2 to 44 kbps.
USB Audio Bridges - Silicon Labs
https://www.silabs.com/interface/usb-audio-bridges
USB Audio Bridge Common Specs. Turnkey USB-to-I 2 S digital audio bridge chip - no firmware development required. 24-bit uni-directional or 16-bit bi-directional digital audio streaming. Built-in communications channel allows apps to control and interact with accessory hardware. Optimized for low power in both active and idle modes.
Choosing a CODEC/DAC - Silicon Labs
https://community.silabs.com/s/article/choosing-a-codec-dac
When choosing a CODEC examine the CODEC and CP2114 datasheet for possible incompatibilities. Areas to examine include the following: 1. Format and timing specs for digital audio interface signals (MCLK,LRCK,SCK,SDIN,SDOUT) 2. Format, protocol, and timing specs for I2C interface signals (SCL, SDA) 3. The mechanism for controlling CODEC Mute and ...
USB Audio Simplified - Silicon Labs
https://www.silabs.com/documents/public/white-papers/usb-audio-simplified.pdf
streaming audio over USB is a complex and time-consuming design task. Major design issues, such as synchronization of audio data streams and codec/DAC configurations, can challenge even the most expert embedded and audio designers. Digital audio bridges, such as the CP2114 device, minimize this
AN0055: Speex Codec - Silicon Labs
https://www.silabs.com/documents/public/application-notes/AN0055.pdf
2013-09-16 - an0055_Rev1.05 1 www.silabs.com Speex Codec AN0055 - Application Note Introduction Speex is a free audio codec which provides high level of compression with good sound quality for speech encoding and decoding. This application note demonstrates an energy efficient Speex solution on an EFM32GG for applications
Developing Bluetooth Audio Devices - Silicon Labs
https://www.silabs.com/documents/login/presentations/Developing-Bluetooth-Audio.pdf
– Provides reasonably good audio quality at medium bit rates while keeping low computational complexity – Only Mandatory codec that must be supported for A2DP • mSBC – a 16 kHz monaural configuration of the SBC codec – Used by Hands-Free Profile v.1.6 – Also often called Wide Band Speech(WBS)
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