It’s All About The Latency

Posted by in Electrical Engineering, Speech Recognition

Measure Microphone Latency in Linux with Alsa The command below generates a tone signal out of the speaker and receives it back through the mic. Measuring the phase diff will reveal the round-trip latency. alsa_delay hw:1,0 hw:0,0 44100 256 2 1 1 Here hw:1,0 refer to the recording device that can be retrieved from arecord…

Speech Recognition II(Developing Kaldi)

Posted by in Speech Recognition

Let’s Enhance Kaldi, Here are some links along the way. Look like YouTube is progressing a lot during the last couple of years so basically here is just a bunch of random videos creating my favorite playlist to learn all the cool stuff under the Kaldi’s hood. YouTube Keith Chugg (USC) – Viterbi Algorithm Lim…

Online Kaldi Decoding

Posted by in Speech Recognition

Thanks to this marvelous framework, a trained model is at disposal with WER of absolute zero percent over the 10 minutes of continuous speech file. The final piece to this puzzle would be implementing a semi-online decoding tool using GStreamer. As always useful links for further inspection GStreamer – Dynamic pipelines Function that save lives!…

WDM, WDK, DDK, HDK, SDK and ….

Posted by in Windows

On the way to develop a driver for Scarlet Solo Gen3 to harness the power of Shure SM57 Dynamic Microphone. Useful links to preserve: Microsoft – Universal Audio Architecture: Guideline to for Sound Card Without Propriety Driver Microsoft – Introduction to Port Class Microsoft – AVStream Overview Microsoft – WDM Audio Terminology Microsoft – Kernel…

HaLseY and TaLoN!

Posted by in Speech Recognition

So the third year has been passed. Halsey was the one who pushes passion into me to don’t ever fucking give up. Through last year I mostly kill the time developing a handful number of hardware projects. Meanwhile, I tried to loosen up and solve some PDE and electromagnetic problems, silly me but it helped…

Lost in the Vast Ocean of Speech Recognition

Posted by in Speech Recognition

Here I am, pursuing once more the old-fashioned machine learning. I’ll keep it short and write down useful links Books Dan Povey – HTK Book Ian Goodfellow – Deep Learning Papers IEEE – Uncertainty Decoding with SPLICE for Noise Robust Speech Recognition YouTube Hannes van Lier – Basic Introduction to Speech Recognition (HMM & Neural…

Dexterity: A Challenge that is Over?

Posted by in Casual

Pain Starting In the past two years, I’ve gone through so much pain due to a complication that arises in my hands. I couldn’t write, I couldn’t type and I couldn’t do many other fine motor tasks that I used to do. Getting your hands away suddenly makes your life so miserable that you can…

ZC702 FMCOMMS3 PetaLinux Starting Guide

Posted by in Electrical Engineering, Linux, Xlinx

The combination of FMCOMMS3 and PetaLinux is working only on Ubuntu 16.04 LTS, PetaLinux 2018.3, Vivado 2018.3 Required Packages: sudo apt-get install -y gcc git make net-tools libncurses5-dev tftpd zlib1g-dev libssl-dev flex bison libselinux1 gnupg wget diffstat chrpath socat xterm autoconf libtool tar unzip texinfo zlib1g-dev gcc-multilib build-essential libsdl1.2-dev libglib2.0-dev zlib1g:i386 screen pax gzip Installing…

Start Microwave Layout In ADS 2015.1

Posted by in Hardware Design

ADS has a broad way of aspects from IC design to the RF simulation, here we explore how to prepare your workspace to start layout phase after schematic design. ADS comes with tons of ready to use parts, these parts are available at <ADS>/ADS/oalibs/componentLib/. Here I demonstrate how to add and use RF_Passive_SMT library in…

Setup ADS Front to Back Design Flow

Posted by in Hardware Design

One of the great feature that comes along with ADS Package is the ability to create your design in a reverse flow. This necessity become more evident when you prefer to use other feature-reach layout tool than ADS and use ODB++ or ADFI tools afterward to import the design into the ADS for performing layout…

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