WO2003049104A1 - Method and aparatus for generating sound effects - Google Patents

Method and aparatus for generating sound effects Download PDF

Info

Publication number
WO2003049104A1
WO2003049104A1 PCT/NO2002/000466 NO0200466W WO03049104A1 WO 2003049104 A1 WO2003049104 A1 WO 2003049104A1 NO 0200466 W NO0200466 W NO 0200466W WO 03049104 A1 WO03049104 A1 WO 03049104A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
finger
electronic unit
music
speed
Prior art date
Application number
PCT/NO2002/000466
Other languages
French (fr)
Inventor
Stig Mathiassen
George Helmke
Original Assignee
Idex Asa
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 Idex Asa filed Critical Idex Asa
Priority to AU2002348545A priority Critical patent/AU2002348545A1/en
Publication of WO2003049104A1 publication Critical patent/WO2003049104A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0091—Means for obtaining special acoustic effects
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/155—Musical effects
    • G10H2210/195—Modulation effects, i.e. smooth non-discontinuous variations over a time interval, e.g. within a note, melody or musical transition, of any sound parameter, e.g. amplitude, pitch, spectral response, playback speed
    • G10H2210/241—Scratch effects, i.e. emulating playback velocity or pitch manipulation effects normally obtained by a disc-jockey manually rotating a LP record forward and backward
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/155—User input interfaces for electrophonic musical instruments
    • G10H2220/161—User input interfaces for electrophonic musical instruments with 2D or x/y surface coordinates sensing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
    • G10H2230/005—Device type or category
    • G10H2230/015—PDA [personal digital assistant] or palmtop computing devices used for musical purposes, e.g. portable music players, tablet computers, e-readers or smart phones in which mobile telephony functions need not be used

Definitions

  • This invention relates generally to an electronic unit including means for audio or visual playback and the use of a sensor in such equipment .
  • Portable music players have become increasingly popular in the recent years, from the rather large CD players to small MP3 units incorporated in mobile phones, PDA's (Personal Digital Assistants) etc, or being adapted to be connected to such.
  • PDA's Personal Digital Assistants
  • Further features other than just playing the music such as simulating "scratching" which originally was introduced by disk jockeys moving LP records back and forth over a chosen part of music, thus obtaining a rythmic sound effect being popular in certain types of music.
  • Player of the type specified above are usually expensive and like mobile phones or PDAs may be provided with PIN codes or other ways to personalise the equipment and to reduce the changes for theft .
  • the user For stripe finger scanners, the user must be allowed to pull the finger over the scanner at various velocity. If the finger scanner samples at a fixed rate, this causes for a method that detects the speed of a finger and remaps the rows that are sampled, so that the axes of the remapped finger image are equal and linear.
  • a unit as decribed above being characterised in that it comprises a sensor provided with means for with real time measurements of the movements of a surface moving relative to the sensor, the unit being provided with means for changing the played music according to chosen characteristics being dependent of the measured movement, and in the use of a sensor provided with real time measurements of the movements of a surface moving relative to the sensor, in which the sensor is provided on an electronic unit, said electronic unit being provided with means for music playback.
  • Figure 1 illustrates an essentially linear fingerprint scanner.
  • Figure 2 illustrates the use of a fingerprint scanner for navigation purposes in at least two directions.
  • Figure 3 illustrates a possible division of measured directions into categories.
  • Figure 4 illustrates a simple sequence for performing the method according to the invention.
  • This invention describes an additional functionality of a finger scanner or similar by utilising the structure of the finger. While a touchpad detects a finger being moved over its surface, this method detects the movement of the sensor area over the finger surface. For a stripe finger scanner this requires some additional sensor elements, while for matrix finger scanners a selection of the already existing sensor elements is sufficient. As this mode will be active for a substantial amount of time during the use of a mobile phone or PDA, it is of importance that the number of sensor elements being used is reduced to a minimum, to keep the consumption of power, processor and memory of the host low.
  • Figure 1 illustrates the sensor in international patent application no. PCT/NO98/00182 comprising sensor elements for speed compensation 2,3.
  • neighbouring sensor elements 4 may be used to detect angular movements, and a sensitivity along the array may be provided by detecting the first sensor element detecting the presence of a finger.
  • the essentially line shaped sensor may be sensitive to movements in at least 4 directions.
  • Figure 2 illustrates an essentially linear finger scanner being capable of detecting movements in two dimensions, such as described in PCT/NO01/00244.
  • the principle of the pointer function is to determine the direction of the finger being moved and then calculate the distance on the basis of the speed of the finger.
  • each category may provide a different sound effect.
  • the categories may, if a the electronic unit is provided with a display be indicated to improve the functionality of the system. Some of the categories may also provide commands to the system, such as on/off of the sound effect mode.
  • the use of a similar system for feeding information to the unit is described in the simultaneously filed application No. (our ref :
  • the sensitivity may be limited to movements along one axis, so that a scratching effect may be obtained by moving the finger back and forth over the sensor, or simply as a volume control .
  • the acoustic signals stored in the electronic unit may be played with a pitch being proportional to the measured speed, thus corresponding directly to the disk jockeys movements on the turntable. Adding filters to the signal almost any effect may be obtained.
  • a digitally recorded sample or reproduction of the scratching sound must be played as the finger moves over the sensor unit .
  • the pitch of the sound should e adjusted according to the speed of the finger.
  • the relationship between the pitch and the speed can be a fixed constant or a parameter or filter that may be changed by the end user.
  • the current position in the played music must be moved forward or backwards, depending on the direction of the finger movement, and at an offset based on the speed and time or distance of the finger swipe.
  • the relationship between the offset position in the music and the length of the finger swipe may also be a fixed constant or a parameter or filter which may be changed by the end user.
  • Figure 3 indicates a simple procedure for using the sensor to change the pitch of music being played, in which a constant the change in the pitch of the music is changed by with a factor df being proportional to the speed v of the finger over the sensor.
  • the constant k may be chosen depending on the effect .
  • a more advanced manipulation of the music may be performed, e.g. shifting of the pitch along one axis and simultaneous adjustments of tone levels along the second axis .
  • This invention is described as primarily based on a finger print scanner of the type described in International patent application no. PCT/NO98/00182 thus primarily on capacitance measurements on a finger surface. It is, however, clear that the invention may used different sensor types, such as thermal sensors, within the scope of this invention. Also, the invention is primarily described in relation to finger scanners of the abovementioned type. Other speed detection means are, however, also possible in some cases, e.g. roller drums consisting of a drum which may be rotated by the user. This solution does, however, have a number of disadvantages, since the drum is a mechanically complicated structure being sensitive to dust and wear. Also, the drum is only capable of measuring movements along one axis, while the sensors above, especially as described in PCT/NO01/00244, may measure movements in two dimensions.

Abstract

Electronic unit including means for audio or visual playback and a sensor provided with means for with real time measurements of the movements of a surface moving relative to the sensor, the unit being provided with means for changing the played music according to chosen characteristics being dependent of the measured movement, and use of a sensor for this purpose.

Description

METHOD AND APARATUS FOR GENERATING SOUND EFFECTS
This invention relates generally to an electronic unit including means for audio or visual playback and the use of a sensor in such equipment .
Portable music players have become increasingly popular in the recent years, from the rather large CD players to small MP3 units incorporated in mobile phones, PDA's (Personal Digital Assistants) etc, or being adapted to be connected to such. With the increasing popularity there is also an increasing demand for further features other than just playing the music, such as simulating "scratching" which originally was introduced by disk jockeys moving LP records back and forth over a chosen part of music, thus obtaining a rythmic sound effect being popular in certain types of music.
Player of the type specified above are usually expensive and like mobile phones or PDAs may be provided with PIN codes or other ways to personalise the equipment and to reduce the changes for theft .
The market of biometrics is evolving rapidly, and the industry is becoming more mainstreamed. However, for biometrics to penetrate the consumer market, requirements are strict in respect to both price and performance (eg. power consumption) .
Currently finger scanners are typically pure capturing devices, hence the responsibility of any signal processing is left to the host. Thus, for implementation in an electronic unit, e.g. a mobile phone or MP3 player or PDA, requirements are also strict in respect to the use of processing power and memory of the signal processing. Nevertheless, as these processes mature and can be implemented in the finger scanner device, the requirements will still apply. International patent application no. PCT/NO98/00182 describes a stripe finger scanner requiring that the finger is moved over the scanner, which then samples information about the finger surface and generates a two dimensional representation of the finger image.
For stripe finger scanners, the user must be allowed to pull the finger over the scanner at various velocity. If the finger scanner samples at a fixed rate, this causes for a method that detects the speed of a finger and remaps the rows that are sampled, so that the axes of the remapped finger image are equal and linear.
Examples of such speed measurements are discussed in international patent applications No PCT/NOOl/00241 and PCT/NO01/00242, while PCT/NO01/00243 and PCT/NOOl/00244 describes sensors providing motion sensitivity in more than one direction.
The presence of sensors of the abovementioned type, which are not used constantly, provides the possibility for additional features. It is an object of this invention to utilise an existing sensor for popular features like sound manipulation in a music player of any kind, for manipulating music or sounds stored in a memory related to the electronic unit . This object is obtained by a unit as decribed above being characterised in that it comprises a sensor provided with means for with real time measurements of the movements of a surface moving relative to the sensor, the unit being provided with means for changing the played music according to chosen characteristics being dependent of the measured movement, and in the use of a sensor provided with real time measurements of the movements of a surface moving relative to the sensor, in which the sensor is provided on an electronic unit, said electronic unit being provided with means for music playback.
The invention will be described below with reference to the accompanying drawings, illustrating the invention by way of examples . Figure 1 illustrates an essentially linear fingerprint scanner.
Figure 2 illustrates the use of a fingerprint scanner for navigation purposes in at least two directions. Figure 3 illustrates a possible division of measured directions into categories. Figure 4 illustrates a simple sequence for performing the method according to the invention.
This invention describes an additional functionality of a finger scanner or similar by utilising the structure of the finger. While a touchpad detects a finger being moved over its surface, this method detects the movement of the sensor area over the finger surface. For a stripe finger scanner this requires some additional sensor elements, while for matrix finger scanners a selection of the already existing sensor elements is sufficient. As this mode will be active for a substantial amount of time during the use of a mobile phone or PDA, it is of importance that the number of sensor elements being used is reduced to a minimum, to keep the consumption of power, processor and memory of the host low.
Figure 1 illustrates the sensor in international patent application no. PCT/NO98/00182 comprising sensor elements for speed compensation 2,3. In addition to the detection of movements along the axis of the speed compensation sensor elements 2,3, neighbouring sensor elements 4 may be used to detect angular movements, and a sensitivity along the array may be provided by detecting the first sensor element detecting the presence of a finger. Thus the essentially line shaped sensor may be sensitive to movements in at least 4 directions.
Figure 2 illustrates an essentially linear finger scanner being capable of detecting movements in two dimensions, such as described in PCT/NO01/00244. The principle of the pointer function is to determine the direction of the finger being moved and then calculate the distance on the basis of the speed of the finger.
Referring to figure 3 a omni-directional functionality is illustrated indicating the categorising of directions into categories, in this case 12 categories. According to one embodiment of the invention each category may provide a different sound effect. The categories may, if a the electronic unit is provided with a display be indicated to improve the functionality of the system. Some of the categories may also provide commands to the system, such as on/off of the sound effect mode. The use of a similar system for feeding information to the unit is described in the simultaneously filed application No. (our ref :
P1807NO00) .
According to a preferred embodiment of the invention the sensitivity may be limited to movements along one axis, so that a scratching effect may be obtained by moving the finger back and forth over the sensor, or simply as a volume control . As the abovementioned sensors provide a possibility for real time speed measurements, the acoustic signals stored in the electronic unit may be played with a pitch being proportional to the measured speed, thus corresponding directly to the disk jockeys movements on the turntable. Adding filters to the signal almost any effect may be obtained.
More in detail, in order to simulate the scratching - based on the output of the sensor unit and the speed and direction calculations, the following two operations must be performed:
1 A digitally recorded sample or reproduction of the scratching sound must be played as the finger moves over the sensor unit . The pitch of the sound should e adjusted according to the speed of the finger. The relationship between the pitch and the speed can be a fixed constant or a parameter or filter that may be changed by the end user. 2 The current position in the played music must be moved forward or backwards, depending on the direction of the finger movement, and at an offset based on the speed and time or distance of the finger swipe. The relationship between the offset position in the music and the length of the finger swipe may also be a fixed constant or a parameter or filter which may be changed by the end user. Figure 3 indicates a simple procedure for using the sensor to change the pitch of music being played, in which a constant the change in the pitch of the music is changed by with a factor df being proportional to the speed v of the finger over the sensor. The constant k may be chosen depending on the effect .
Several extensions to the scratching simulation can be enabled to encourage coming DJ's to explore other effects based on this method. For example different modes may be selected by the user where effects that are typical in synthesisers can be changed by moving the finger over the sensor unit. As mentioned above different effects may apply to different directions over the sensor.
Using a sensor unit being sensitive to movements in two dimensions a more advanced manipulation of the music may be performed, e.g. shifting of the pitch along one axis and simultaneous adjustments of tone levels along the second axis .
This invention is described as primarily based on a finger print scanner of the type described in International patent application no. PCT/NO98/00182 thus primarily on capacitance measurements on a finger surface. It is, however, clear that the invention may used different sensor types, such as thermal sensors, within the scope of this invention. Also, the invention is primarily described in relation to finger scanners of the abovementioned type. Other speed detection means are, however, also possible in some cases, e.g. roller drums consisting of a drum which may be rotated by the user. This solution does, however, have a number of disadvantages, since the drum is a mechanically complicated structure being sensitive to dust and wear. Also, the drum is only capable of measuring movements along one axis, while the sensors above, especially as described in PCT/NO01/00244, may measure movements in two dimensions.

Claims

C l a i m s
1. Electronic unit including means for audio or visual playback and a sensor provided with means for with real time measurements of the movements of a surface moving relative to the sensor, the unit being provided with means for changing the played music according to chosen characteristics being dependent of the measured movement .
2. Electronic unit according to claim 1, wherein the sensor is a finger scanner.
3. Electronic unit according to claim 1, wherein the sensor is capable of measuring movements in two dimensions.
4. Electronic unit according to claim 1, wherein the velocity of said surface is measured.
5. Electronic unit according to claim 4, wherein the pitch of the music being played is changed with a factor being proportional to the speed of the surface.
6. Use of a sensor provided with real time measurements of the movements of a surface moving relative to the sensor, in which the sensor is provided on an electronic unit, said electronic unit being provided with means for music playback.
7. Use according to claim 6, wherein the sensor is a finger scanner.
8. Use according to claim 6, wherein the sensor is capable of measuring movements in two dimensions.
9. Use according to claim 6, wherein the speed of said surface is measured, the music thus being changed relative to the speed.
10. Use according to claim 9, wherein the pitch of the music being played is changed with a factor being proportional to the speed of the surface.
PCT/NO2002/000466 2001-12-07 2002-12-06 Method and aparatus for generating sound effects WO2003049104A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002348545A AU2002348545A1 (en) 2001-12-07 2002-12-06 Method and aparatus for generating sound effects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20016010 2001-12-07
NO20016010A NO316002B1 (en) 2001-12-07 2001-12-07 Method and apparatus for generating sound effects

Publications (1)

Publication Number Publication Date
WO2003049104A1 true WO2003049104A1 (en) 2003-06-12

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NO (1) NO316002B1 (en)
WO (1) WO2003049104A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7697729B2 (en) 2004-01-29 2010-04-13 Authentec, Inc. System for and method of finger initiated actions
US7831070B1 (en) 2005-02-18 2010-11-09 Authentec, Inc. Dynamic finger detection mechanism for a fingerprint sensor
US8231056B2 (en) 2005-04-08 2012-07-31 Authentec, Inc. System for and method of protecting an integrated circuit from over currents
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
US9600704B2 (en) 2010-01-15 2017-03-21 Idex Asa Electronic imager using an impedance sensor grid array and method of making
US9798917B2 (en) 2012-04-10 2017-10-24 Idex Asa Biometric sensing
US10248900B2 (en) 2017-03-23 2019-04-02 Idex Asa Sensor array system selectively configurable as a fingerprint sensor or data entry device
US10775906B2 (en) 2017-12-12 2020-09-15 Idex Biometrics Asa Power source for biometric enrollment with status indicators
US11250307B2 (en) 2017-03-23 2022-02-15 Idex Biometrics Asa Secure, remote biometric enrollment

Citations (2)

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EP1152393A2 (en) * 2000-04-21 2001-11-07 Samsung Electronics Co., Ltd. Audio reproduction apparatus having audio modulation function, method used by the apparatus and remixing apparatus using the audio reproduction apparatus
EP1260979A2 (en) * 2001-05-22 2002-11-27 Pioneer Corporation Information playback apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1152393A2 (en) * 2000-04-21 2001-11-07 Samsung Electronics Co., Ltd. Audio reproduction apparatus having audio modulation function, method used by the apparatus and remixing apparatus using the audio reproduction apparatus
EP1260979A2 (en) * 2001-05-22 2002-11-27 Pioneer Corporation Information playback apparatus

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7697729B2 (en) 2004-01-29 2010-04-13 Authentec, Inc. System for and method of finger initiated actions
US7831070B1 (en) 2005-02-18 2010-11-09 Authentec, Inc. Dynamic finger detection mechanism for a fingerprint sensor
US8231056B2 (en) 2005-04-08 2012-07-31 Authentec, Inc. System for and method of protecting an integrated circuit from over currents
US10115001B2 (en) 2010-01-15 2018-10-30 Idex Asa Biometric image sensing
US10592719B2 (en) 2010-01-15 2020-03-17 Idex Biometrics Asa Biometric image sensing
US9600704B2 (en) 2010-01-15 2017-03-21 Idex Asa Electronic imager using an impedance sensor grid array and method of making
US9659208B2 (en) 2010-01-15 2017-05-23 Idex Asa Biometric image sensing
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
US9268988B2 (en) 2010-01-15 2016-02-23 Idex Asa Biometric image sensing
US11080504B2 (en) 2010-01-15 2021-08-03 Idex Biometrics Asa Biometric image sensing
US9798917B2 (en) 2012-04-10 2017-10-24 Idex Asa Biometric sensing
US10088939B2 (en) 2012-04-10 2018-10-02 Idex Asa Biometric sensing
US10101851B2 (en) 2012-04-10 2018-10-16 Idex Asa Display with integrated touch screen and fingerprint sensor
US10114497B2 (en) 2012-04-10 2018-10-30 Idex Asa Biometric sensing
US10248900B2 (en) 2017-03-23 2019-04-02 Idex Asa Sensor array system selectively configurable as a fingerprint sensor or data entry device
US10546223B2 (en) 2017-03-23 2020-01-28 Idex Biometrics Asa Sensor array system selectively configurable as a fingerprint sensor or data entry device
US10769512B2 (en) 2017-03-23 2020-09-08 Idex Biometrics Asa Device and method to facilitate enrollment of a biometric template
US10282651B2 (en) 2017-03-23 2019-05-07 Idex Asa Sensor array system selectively configurable as a fingerprint sensor or data entry device
US11250307B2 (en) 2017-03-23 2022-02-15 Idex Biometrics Asa Secure, remote biometric enrollment
US10775906B2 (en) 2017-12-12 2020-09-15 Idex Biometrics Asa Power source for biometric enrollment with status indicators

Also Published As

Publication number Publication date
NO20016010D0 (en) 2001-12-07
NO316002B1 (en) 2003-11-24
AU2002348545A1 (en) 2003-06-17
NO20016010L (en) 2003-06-10

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