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Index » Company » Speech technologies » Noise Cancellation

SPEECH ENHANCEMENT AND NOISE CANCELLATION

Examples of distortions

DISTORTION / NOISE	Before processing	After processing
BABBLE NOISE	example_1 example_2	example_1 example_2
CAR NOISE	example_3 example_4	example_3 example_4
CLIPPING	example_5 example_6 example_7	example_5 example_6 example_7
GSM HINDRANCE	example_8 example_9 example_10	example_8 example_9 example_10
MUSIC NOISE	example_11	example_11
NONSTATIONARY NOISE	example_12 example_13 example_14	example_12 example_13 example_14
PULSE NOISE	example_15 example_16 example_17 example_18	example_15 example_16 example_17 example_18
REVERBERATION&NOISE	example_19* example_20* example_21* example_22* example_23 example_24 example_25	example_19 example_20 example_21 example_22 example_23 example_24 example_25
TONAL NOISE	example_26 example_27 example_28	example_26 example_27 example_28
WIDEBAND NOISE	example_29** example_30 example_31 example_32 example_33 example_34	example_29 example_30 example_31 example_32 example_33 example_34

*Raw example is from http://www.mcsquared.com/y-reverb.htm

**Raw example is from http://dea.brunel.ac.uk/cmsp/Home_Esfandiar/Sample%20Wave%20Files

Examples of recording conditions.

SITUATIONS / SOUND DEFECTS	Before processing	After processing
AM RADIO Recording (Static, Impulse noise, whistle, tones)	example_35	example_35
AVIA Recording (Non-stationary noise, loud engine noise, cyclical noise, rumble)	example_36 example_37 example_38	example_36 example_37 example_38
CAR recording (Street traffic, engine noise, wind noise)	example_39 example_40 example_41	example_39 example_40 example_41
EQUIPMENT Recording (Power line hum/buzz, spectral distortions, non-linear distortions, clipping distortion)	example_42	example_42
OFFICE Recording (Air-conditioning, Foot Steps, keyboard clicks, conversation)	example_43	example_43
PUBLIC PLACE recording (reverberation, foot steps, voice cocktail, background noise, radio& TV)	example_44	example_44
RALLY recording (Engine noise)	example_45 example_46	example_45 example_46
ROOM Recording (Radio & TV, Reverberations, Room acoustic)	example_47	example_47
STREET Recording (Street traffic, car/wind noise, car horn)	example_48	example_48
TELEPHONE Recording (Channel noise, large variation between near/far party, power line hum/buzz, tones, acoustic and electrical echo)	example_49 example_50	example_49 example_50
VINIL Recordings (Hiss, clicks)	example_51	example_51


	07.05.2010 Following the overwhelming success of the SpeechTEK event in the US, SpeechTEK Europe launches in London on 26 & 27 May 2010. SpeechTEK Europe will feature two packed days of conference sessions, keynotes and case studies plus an exhibit hall showcasing leading vendors and solutions providers, dedicated to bringing European buyers and sellers together in a focused setting. more... 06.05.2010 The 1st EU–Russia Innovation Forum will be held on the 25 – 27th of May, 2010 in the City of Lappeenranta. The events will take place at the Lappeenranta City Hall and at the Lappeenranta University of Technology. more... 25.03.2010 Speech Technology Center invites you to visit our booth at DSA 2010, which has now become one of the world's top 5 defense and security exhibitions and firmly remains the Asia Pacific region's most vital procurement hub for Defense and Security. more... Archive news RSS


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