Rush Limbaugh Voice Recognition Commercial Killer Research

Got the impression it did not work.

Team D Speaker Recognition – the team that did the project sequence below

• www.data-compression.com/vq.html
• "vector quantization"  "speaker verification" "text independent"  – see pudn for lots of matlab files
• http://en.wikipedia.org/wiki/Speaker_recognition
• Matlab example of speaker recognition
• CPact Software – VoiceBox download
• VoiceBox Summary and download
• Speech Filing System – Mark Huckvale
• Theory on VQ Method

 System 1: Luigi Rosa Code

• VQ method  Luigi Rosa Voice Recognition Matlab P-Code – compiled ONLY  –  speakerrecognition.rar – How to donate to get the source code    Solution based on Amin Koohi solution with improved distance metric
• Text-Independent Speaker Recognition Based on Neural Networks  – problem: do not have: \Program
  Files\MATLAB\R2008b\toolbox\nnet\nnet\nntrain\private\nn_train_feedback.m – This is from Matlab 2006a Neural Net ToolBox  – MatLab Neural Net Version Map
• Speaker Recognition based on Relative Spectral Methodology  – faster than VQ method but error prone when using same test / train files of approximately 2 seconds.  What is the correct length of speech training file?

System 3: RASTA -PLP

• Dan Ellis -PLP and RASTA (and MFCC, and inversion) in Matlab using melfcc.m and invmelfcc.m  – lots of matlab source files with related signal processing

Microsoft SAPI Based Solutions

• Planet source code examples SAPI usage to do control
• General SAPI setup / installation to work with end apps like Word
• Microsoft Speech API – works with VB.net   – SAPI Book
• Microsoft Speech Recognition Engine  – How to specify the SAPI training file

Gaussian Mixture Model (GMM) Hidden Markov Model (HMM)

• AudioSeg open source project  is a toolkit dedicated to audio segmentation and classification of audio streams. The toolkit implements standard reference algorithms such as energy-based silence detection, BIC segmentation and clustering as well as GMM/HMM classification. – Speaker Diarisation

Other Solutions

•  Speech Recognition Project with .mov demo of digits 1-10

Sound and Wave handling via Visual Basic

• How to Control the Volume of Sound Files from Visual Basic
•  
• Write a .wav file – Includes some info on how to do header
• Waveplayer using the waveOutWrite method  – works with larger files
• Wave Class – Easily read and write RIFF 
• TrueWaveEditor  –
• How to encode a .wav file to MP3 using Windows DLL

Ancillary discoveries

• bar code reading from image
• Calling matlab from Visual Basic
• CELP – Code Excited Linear Prediction – most common cell phone speech compression method.
• Speex – open source CELP system