New low power TWELP vocoder delivers crystal clear voice performance
August 07, 2012 // Paul Buckley
CML Microcircuits has expanded the company’s DuraTALK digital voice processor range with the release of a new professional radio low bit-rate 2.4 kbps vocoder.
The CMX7262 is a high-performance low bit-rate vocoder for professional two-way radio, providing market-leading crystal clear voice and excellent performance in real-life radio operation. This is achieved through the use of the latest state-of-the-art voice coding technology called Tri-Wave Excited Linear Prediction (TWELP), developed by the digital voice coding experts at DSP Innovations.
The CMX7262 TWELP vocoder provides a highly-integrated solution with optimised signal processing ensuring lowest power consumption. Voice is handled in 20 ms frames ensuring compatibility with recognised digital PMR standards as well as CML Microcircuits’ range of digital PMR baseband processors.
Supporting the voice coding function is a robust forward error correction (FEC) scheme, an important feature to mitigate errors inherent when transmitting over narrowband radio channels in challenging conditions. Background noise reduction has also been implemented to further enhance voice clarity. Unlike other purely digital-based solutions, the CMX7262 integrates a voiceband audio codec (ADC/DAC functionality), input/output amplifier and loudspeaker driver with digital gain control to give a complete solution of analog voice in to vocoded data out and vocoded data in to analogue voice out.
The device operates from a 3.0 V to 3.6 V supply and is built on CML’s FirmASIC technology providing maximum flexibility and optimal performance, in a single small 64-pin VQFN and LQFP packages.
Visit CML at www.cmlmicro.com
CoolCube circuit stacking moves to FinFET process
August 03, 2015
The CEA-Leti research laboratory at Grenoble France, has reported that its CoolCube 3D interconnect technology is suitable ...
Is NextInput next winner in Apple products?
Fraunhofer rolls security platform for cars
The Filter Wizard: When off the shelf won't do, Part 1
Butterflies help boost solar panel power by 50 per cent
Facebook unveils solar-powered Internet-beaming drone
August 03, 2015
Social networking giant Facebook (Cambridge, MA) has unveiled a full-scale version of its solar-powered drone designed to ...
Indian fab project hires former GloFo exec
OmniVision shareholders approve Seagull takeover
Ancient RF teardown: crude but effective
- Dual Phase Buck Controller Drives High Density 1.2V/60A Supply with Submilliohm DCR Sensing
- Test environment for the positioning elements of wearable devices
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
- Top 5 Challenges for testing Today's Consumer Electronics
InterviewGlobalfoundries' CEO on why FD-SOI and why now
With its latest news Globalfoundries Inc. has not only confirmed itself as a supporter of the fully-depleted silicon-on-insulator (FD-SOI) approach to IC manufacturing but that it also thinks sufficiently ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Novelda is giving away two full XeThru Inspiration kits worth 1499 US Dollars each, for EETimes Europe's readers to experiment first hand with its XeThru technology.Based on the use of radio waves, rather than infrared, ultrasound or light, the company's X2M1000 Inspiration modules can detect presence just from the chest movement while breathing, and measure both the rate and... MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.