A Standard Audio Encapsulation Method and Homayoon Beigi Judith - - PowerPoint PPT Presentation
A Standard Audio Encapsulation Method and Homayoon Beigi Judith Markowitz Beigi@RecognitionTechnologies.com Judith@JMarkowitz.com http://www.RecognitionTechnologies.com http://www.JMarkowitz.com of of Recognition Technologies, Inc. J.
Beigi@RecognitionTechnologies.com http://www.RecognitionTechnologies.com
300 Hamilton Avenue White Plains, NY, U.S.A.
Judith@JMarkowitz.com http://www.JMarkowitz.com
5801 N. Sheridan Road Chicago, IL, U.S.A.
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
What Should be Standardized at This Stage of Development in Speaker Recognition?
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
What Should be Standardized at This Stage of Development in Speaker Recognition? Audio Format? Speaker Models? Interaction with Engines? Results of Recognition?
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
What Should be Standardized at This Stage of Development in Speaker Recognition? Audio Format?
Definitely
Speaker Models? Interaction with Engines? Results of Recognition?
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
What Should be Standardized at This Stage of Development in Speaker Recognition? Audio Format?
Definitely
Speaker Models?
Not Yet
Interaction with Engines? Results of Recognition?
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
What Should be Standardized at This Stage of Development in Speaker Recognition? Audio Format?
Definitely
Speaker Models?
Not Yet
Interaction with Engines? Results of Recognition?
Yes
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
What Should be Standardized at This Stage of Development in Speaker Recognition? Audio Format?
Definitely
Speaker Models?
Not Yet
Interaction with Engines?
Yes
Results of Recognition?
Yes
Mar 4, 2009
Recognition Technologies, Inc.
Large Government Applications Financial Applications – Fraud Protection, Account Access, etc. Large Health Insurance Memberships – Access to Medical Records, etc. Telephone Order Credit Card Charges – Verify buyers in place of signature Large Corporation VoiceMail Applications Other System-Wide Applications – Requiring Remote Authentication or Customization Remote Test Proctoring – Requires continuous verification Social Security Eligibility Verification, Border Crossing, etc. – millions of participants Verification of Life Status for remote citizens – e.g. Pension plans Forensic Applications
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
A Basic List of Audio Formats Meeting All Interchange Requirements
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
A Basic List of Audio Formats Meeting All Interchange Requirements With Minimal Redundancy for the Sake of Clarity, Simplicity, and Compactness
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
A Basic List of Audio Formats Meeting All Interchange Requirements Preference Given to Open-Source and Royalty-Free Formats With Minimal Redundancy for the Sake of Clarity, Simplicity, and Compactness
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
A Basic List of Audio Formats Meeting All Interchange Requirements Preference Given to Open-Source and Royalty-Free Formats Ease of Adoption With Minimal Redundancy for the Sake of Clarity, Simplicity, and Compactness
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
A Basic List of Audio Formats Meeting All Interchange Requirements Preference Given to Open-Source and Royalty-Free Formats Ease of Adoption Stability of Implementation With Minimal Redundancy for the Sake of Clarity, Simplicity, and Compactness
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
A Basic List of Audio Formats Meeting All Interchange Requirements Preference Given to Open-Source and Royalty-Free Formats Ease of Adoption Stability of Implementation Relative Quality – Compared to Contenders With Minimal Redundancy for the Sake of Clarity, Simplicity, and Compactness
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
Sampling
Analog Signal Storage
Type Bit Rate (bps)
Periodic Multirate Cyclic Rate Random Pulse-Width Modulated
Periodic: Bit Rate (bps) is Prop. to Sampling Freq. (Hz) Multirate: Bit Rate (bps) has Indirect Rel. to Freq. (Hz)
Mar 4, 2009
Lossless Representation – Amplitude and Frequency are Unchanged Amplitude Compression – Freq. Stays the Same, Amplitude is Represented Nonlinearly Multirate Sampling – Aggressive Variable Bitrate Compression
Recognition Technologies, Inc.
Streaming – Usually includes multirate sampling and streaming
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Lossless Representation
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
Microsoft WAV Comes to Mind – A Wrapper which includes over 104 codecs LPCM offers all that is needed – Just need to code the header information
Mar 4, 2009
Lossless Representation
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
LPCM offers all that is needed – Just need to code the header information Amplitud Compression G.711 and G.711.1 ITU-T define PCMU and PCMA for 64, 80, and 96kbps ADPCM was considered, but it has many flavors and is not open source
Mar 4, 2009
Lossless Representation
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
LPCM offers all that is needed – Just need to code the header information Amplitud Compression G.711 and G.711.1 ITU-T define PCMU and PCMA for 64, 80, and 96kbps Multirate Sampling MP3 comes to mind – Patent driven and certainly not an open standard OGG Vorbis – Open Source and better quality as MP3 for the same bit rate
Mar 4, 2009
Lossless Representation
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
LPCM offers all that is needed – Just need to code the header information Amplitud Compression G.711 and G.711.1 ITU-T define PCMU and PCMA for 64, 80, and 96kbps Multirate Sampling OGG Vorbis – Open Source and better quality as MP3 for the same bit rate Streaming – Usually includes multirate sampling and streaming OGG Media Stream – Open Source with capability of streaming different audio types
Mar 4, 2009
Recognition Technologies, Inc. and J. Markowitz Consultants
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Recognition Technologies, Inc. and J. Markowitz Consultants
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Recognition Technologies, Inc. and J. Markowitz Consultants
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Recognition Technologies, Inc.
beigi@RecoTechnologies.com judith@JMarkowitz.com
Mar 4, 2009
Are There any Interchange Requirements Not Covered? Are There any Important Features Missing in General Are There any Formats which will Lose Important Features when Converted?
Recognition Technologies, Inc.
Any other Compelling Reasons to Add more Formats to the Supported List?
beigi@RecoTechnologies.com judith@JMarkowitz.com
Please! “Popularity” is no Reason!
Beigi@RecognitionTechnologies.com http://www.RecognitionTechnologies.com
300 Hamilton Avenue White Plains, NY, U.S.A.
Judith@JMarkowitz.com http://www.JMarkowitz.com
5801 N. Sheridan Road Chicago, IL, U.S.A.