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Main | Company Presentation | Technology | Applications | Customers | Contact us |
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• Audio for Communications • Professional Audio • |
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Application Example from bdSound Technology
AUDIO FOR TELECOMMUNICATIONS |
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From its establishment, bdSound is involved in research and
developing advanced solutions for audio and speech processing. Now
bdSound's intellectual properties portfolio is able to offer to its
customers complete solutions in high-quality processing and audio
acquisition platforms.
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bdSES: Speech Enhancement Suite for VoIP application |
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Target
application:
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Technical Infosheet: |
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bdSES software
Infosheet |
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Related Download: |
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Request bdSES "Grodino" demo: to test bdSES
performances in an actual two-point real time
communication |
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bdSES (Speech
Enhancement Suite) is a complete set of highly optimized algorithms
for VoIP software applications. It includes an advanced Full Duplex
Acoustic Echo Canceller and a distortion-less Noise Reduction.
bdSES is specifically designed for
Softphone applications where the PC-based environment and the
inherited sound-card and net delay handling problems required a
strong and robust solution.
Thanks to easiness of integration and the ready-to-use API,
bdSES is the right solution to
quickly develop a VoIP application with outstanding performances.
The sample frequency up to 32kHz and the
uncompromised sound quality are important factors kept in
consideration by bdSES both for
a consumer and a professional application.
bdSES is ready for a multipoint
conference and manage the different channels activity maintaining
the speakers’ voice clear and loud, adapting the downmixing level
according to the conversation status.
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Enhance speech quality
in VoIP communications
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Full Duplex
Acoustic Echo Canceller
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Support
up to 32kHz
sampling rate
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Works with
any codec
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Strong echo
cancellation also with
Webcams Microphones
and
cheap audio devices
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Noise suppressor
with negligible distortion and without voice attenuation
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Adaptive Residual Echo Suppressor
and
Non Linear Processor
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Smart
Downmixing specifically designed for
multipoint conferences
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Natural and
Adaptive
Speech Dynamic Controller
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Sound card
clock drifts immunity
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Immunity to Network Delays
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Notch Filter
Free
Anti-Howling Solution
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Low CPU
consumption
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Specifically
designed for
Softphone applications
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Fully
Customizable
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bdAEC-VHDL:
Acoustic and Line Echo Canceller for Dedicated Hardware in VHDL |
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Echo cancellation is a strong challenge in all
handsfree communication system. bdSound has developed a complete solution for echo
cancellation as a VHDL library.
bdAEC-VHDL is oriented to:
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Semiconductor IC Company who wants to integrate AEC IP
within its devices;
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Semiconductor IC Company who wants to develop an ASIC
with integrated AEC;
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Final product developers that still use FPGA
and want to integrate AEC features within their product
bdAEC-VHDL is a field proven
solution ready to be integrated. Features:
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Full Duplex
Acoustic Echo Canceller
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Support
up to 16kHz
sampling rate
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Noise suppressor
with negligible distortion and without voice attenuation
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Adaptive Residual Echo Suppressor
and
Non Linear Processor
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Natural and
Adaptive
Speech Dynamic Controller
and Automatic Equalizer
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Notch Filter
Free
Anti-Howling Solution
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Can be
implemented on low-cost FPGA (<5$/1ksample)
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Fully
Customizable
Demo
board will be avalaible soon
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Application
Example: Complete Microphone Array Processing Platform |
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Target
application:
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Conference Table-Top Microphone
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Measurement System based on Microphone Array
Processing
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Enhancement of audio quality in consumer devices (PDAs, Smartphone,
etc.)
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Automotive hands-free
system for noise reduction
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bdSound has developed a complete platform
for microphone array acquisition and processing. This application is
able to manage up to 8 microphone, both analog electrect and
modern MEMS digital output microphones. Postprocessing facilities
and microSD recording.
The solution is very small footprint (20mm x 20mm)
and is based on custom FPGA firmware.
bdSound techology contents:
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Hardware design
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FPGA code for acquisition and processing
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Microphone front-end (for both Electrect and
MEMS digital microphones)
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Post-processing software running on a PC
The microphone arrays technology is well suited in
all application requiring high rejection of environmental noise, focusing
of the speaker, and hands-free devices.
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