WO2006105055A3 - Sound event processing with echo analysis - Google Patents

Sound event processing with echo analysis Download PDF

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Publication number
WO2006105055A3
WO2006105055A3 PCT/US2006/011216 US2006011216W WO2006105055A3 WO 2006105055 A3 WO2006105055 A3 WO 2006105055A3 US 2006011216 W US2006011216 W US 2006011216W WO 2006105055 A3 WO2006105055 A3 WO 2006105055A3
Authority
WO
WIPO (PCT)
Prior art keywords
event
stored
new
channel
energy
Prior art date
Application number
PCT/US2006/011216
Other languages
French (fr)
Other versions
WO2006105055A2 (en
Inventor
Karl Daniel Gierach
Michael Schmalko
Original Assignee
Applied Voice And Speech Techn
Karl Daniel Gierach
Michael Schmalko
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Applied Voice And Speech Techn, Karl Daniel Gierach, Michael Schmalko filed Critical Applied Voice And Speech Techn
Publication of WO2006105055A2 publication Critical patent/WO2006105055A2/en
Publication of WO2006105055A3 publication Critical patent/WO2006105055A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/002—Applications of echo suppressors or cancellers in telephonic connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/40—Electronic components, circuits, software, systems or apparatus used in telephone systems using speech recognition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Abstract

Apparatus, methods, and machine-readable articles of manufacture enable a telephone system (100) to distinguish between actual events and echoes. Events may include conferees' voice and DTMF commands. In selected embodiments, the system categorizes (220) an event received (205) on one channel as a real event if the energy of the event's waveform is greater than (215) concurrent energy of every other channel of the same conference. Otherwise, the event is stored (235). When the system receives a new event of the same type on a channel of the same conference during a predetermined period, it compares (260) the energies of the new and stored events. If the energy of the new event exceeds (260) that of the stored event, the new event becomes the stored event (265), and the old stored event is ignored. At the end of the period, the stored event is categorized as a real event and forwarded (225) to appropriate application code.
PCT/US2006/011216 2005-03-30 2006-03-28 Sound event processing with echo analysis WO2006105055A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/096,004 US7822192B2 (en) 2005-03-30 2005-03-30 Sound event processing with echo analysis
US11/096,004 2005-03-30

Publications (2)

Publication Number Publication Date
WO2006105055A2 WO2006105055A2 (en) 2006-10-05
WO2006105055A3 true WO2006105055A3 (en) 2007-09-20

Family

ID=37053999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/011216 WO2006105055A2 (en) 2005-03-30 2006-03-28 Sound event processing with echo analysis

Country Status (2)

Country Link
US (2) US7822192B2 (en)
WO (1) WO2006105055A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8072909B2 (en) * 2004-11-15 2011-12-06 Applied Voice & Speech Technologies, Inc. Apparatus and method for notification of a party in a telephone conference
US8446846B1 (en) * 2007-02-02 2013-05-21 Radisys Canada Ulc Method of passing signal events through a voice over IP audio mixer device
US8064892B1 (en) 2007-05-18 2011-11-22 Sprint Spectrum L.P. Off-hook triggered cellular-landline conference call
US8514067B2 (en) 2011-08-16 2013-08-20 Elwha Llc Systematic distillation of status data relating to regimen compliance
US10887123B2 (en) 2017-10-19 2021-01-05 Libre Wireless Technologies, Inc. Multiprotocol audio/voice internet-of-things devices and related system
US10531247B2 (en) * 2017-10-19 2020-01-07 Libre Wireless Technologies Inc. Internet-of-things devices and related methods for performing in-call interactions

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020172342A1 (en) * 2001-04-30 2002-11-21 O'malley William Audio conference platform with dynamic speech detection threshold
US6810116B1 (en) * 2000-09-12 2004-10-26 International Business Machines Corporation Multi-channel telephone data collection, collaboration and conferencing system and method of using the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675644A (en) * 1995-09-26 1997-10-07 Qualcomm Incorporated Method and apparatus for canceling echo accounting for delay variations
US7136471B2 (en) * 1997-03-27 2006-11-14 T-Netix, Inc. Method and apparatus for detecting a secondary destination of a telephone call based on changes in the telephone signal path
US6920219B2 (en) * 2002-05-31 2005-07-19 Motorola, Inc. Method and apparatus for providing echo cancellation
US7624188B2 (en) * 2004-05-03 2009-11-24 Nokia Corporation Apparatus and method to provide conference data sharing between user agent conference participants

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6810116B1 (en) * 2000-09-12 2004-10-26 International Business Machines Corporation Multi-channel telephone data collection, collaboration and conferencing system and method of using the same
US20020172342A1 (en) * 2001-04-30 2002-11-21 O'malley William Audio conference platform with dynamic speech detection threshold

Also Published As

Publication number Publication date
US8290140B2 (en) 2012-10-16
US20110002455A1 (en) 2011-01-06
US20060227964A1 (en) 2006-10-12
WO2006105055A2 (en) 2006-10-05
US7822192B2 (en) 2010-10-26

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