EP3128765A1 - Procédé de traitement d'une bande sonore - Google Patents
Procédé de traitement d'une bande sonore Download PDFInfo
- Publication number
- EP3128765A1 EP3128765A1 EP15180168.5A EP15180168A EP3128765A1 EP 3128765 A1 EP3128765 A1 EP 3128765A1 EP 15180168 A EP15180168 A EP 15180168A EP 3128765 A1 EP3128765 A1 EP 3128765A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- pitch
- low
- band
- pitch sound
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/03—Synergistic effects of band splitting and sub-band processing
Definitions
- the present invention relates to methods of processing a sound track and more particularly to a method of processing a sound track to thereby combine sounds synchronously and therefore enhance audibility thereof without generating any interference.
- the inventor of the present invention conceived room for improvement in the prior art and thus conducted extensive researches and experiments according to the inventor's years of experience in the related industry, and finally developed a method of processing a sound track to thereby combine sounds synchronously and therefore enhance audibility thereof without generating any interference.
- the present invention provides a method of processing a sound track, comprising the steps of:
- the low-pitch sound band is one or multiple sound bands selected at a lower side of the original sound track, with the low-pitch sound bands being separated by one octave or by the frequency shift of 2 n , where n is +1 or -1, wherein the low-pitch sound bands each have a predetermined frequency shift of one or multiple octaves or a predetermined frequency shift of 2 n , where n is one of a positive integer and a negative integer, wherein the high-pitch sound band is one or multiple sound bands selected at a higher side of the original sound track, with the high-pitch sound bands being separated by one octave or by the frequency shift of 2 n , where n is +1 or -1, wherein the high-pitch sound bands each have a predetermined frequency shift of one or multiple octaves or a predetermined frequency shift of 2 n , where n is one of a positive integer and a negative integer.
- the original sound track and the modified low-pitch sound band are amplified by a frequency-dependent amplification curve, respectively, and then combined, wherein the original sound track and the modified high-pitch sound band are amplified by a frequency-dependent amplification curve, respectively, and then combined.
- the amplification curves are dynamic and instantly adjustable according to the amplitude and frequency distribution of the original sound track.
- the original sound track and the modified low-pitch sound band are combined and then one of a specific sound signature or an indicator prompt is added to the combined original sound track and modified low-pitch sound band if the amplitude of one of the low-pitch sound bands exceeds a preset threshold level, wherein the original sound track and the modified high-pitch sound band are combined and then one of a specific sound signature or an indicator prompt is added to the combined original sound track and modified high-pitch sound band if the amplitude of one of the high-pitch sound bands exceeds a preset threshold level.
- the present invention provides a method of processing a sound track to thereby combine sounds synchronously and therefore enhance audibility thereof without generating any interference.
- the present invention provides a method of processing a sound track, comprising the steps of:
- the present invention provides a method of processing a sound track to thereby combine an original sound and a modified sound synchronously, so as to enhance the audibility of sounds without generating any interference.
- the low-pitch sound bands 2', 2" are one sound band (2' or 2") or multiple sound bands (2' and 2") selected at a lower side of the original sound track 1, with the low-pitch sound bands (2' and 2") being separated by one octave or by the frequency shift of 2 n , where n is +1 or -1, wherein the low-pitch sound bands 2', 2" are each separated by a predetermined frequency shifts 23', 23" of one octave 23', multiple octaves 23" (two octaves) or 2 n , where n is a positive integer or a negative integer.
- the high-pitch sound bands 4', 4" are one sound band (4' or 4") or multiple sound bands (4' and 4") selected at a higher side of the original sound track 1, with the high-pitch sound bands (4' and 4") being separated by one octave or2 n , where n is +1 or -1.
- the predetermined frequency shifts 45', 45" of the high-pitch sound bands 4', 4" are one octave 45' or multiple octaves 45" (two octaves).
- the predetermined frequency shifts 45', 45" of the high-pitch sound bands 4', 4" are 2 n , where n is a positive integer or a negative integer.
- step (2) involves either selecting the low-pitch sound bands 2', 2" or selecting the high-pitch sound bands 4', 4"
- the step (2) may involve selecting them simultaneously, then modifying them simultaneously, and eventually combining them. Therefore, the method of processing a sound track of the present invention offers various combination choices as needed and therefore enhances audibility thereof.
- the original sound track 1 and the modified low-pitch sound band 3 are amplified by frequency-dependent amplification curves 6, 7 and then combined, or, alternatively, the original sound track 1 and the modified high-pitch sound band 5 are amplified by frequency-dependent amplification curves 6, 8 and then combined.
- the original sound track 1, the modified low-pitch sound band 3 and the modified high-pitch sound band 5 are amplified by frequency-dependent amplification curves 6, 7, 8 and then combined. Therefore, the method of processing a sound track of the present invention not only combines the original sound and modified sound synchronously but also amplifies the combined sounds as needed and therefore enhances audibility thereof.
- the amplification curves 6, 7, 8 are dynamic and instantly adjustable according to the amplitude and frequency distribution of the original sound track 1. Therefore, the method of processing a sound track of the present invention offers various combination choices as needed and therefore enhances audibility thereof.
- a specific sound signature 91 or an indicator prompt is added to the combined original sound track 1 and modified low-pitch sound bands 3', 3" if the amplitude of one of the low-pitch sound bands 2', 2" exceeds a preset threshold level.
- a specific sound signature 92 or an indicator prompt is added to the combined original sound track 1 and modified high-pitch sound bands 5', 5" if the amplitude of one of the high-pitch sound bands 4', 4" exceeds a preset threshold level.
- a specific sound signature or an indicator prompt is added to the combined original sound track 1, modified low-pitch sound bands 3', 3" and modified high-pitch sound bands 5', 5". Therefore, the method of processing a sound track of the present invention improves the recognition the nature of the original sound.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrophonic Musical Instruments (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15180168.5A EP3128765A1 (fr) | 2015-08-07 | 2015-08-07 | Procédé de traitement d'une bande sonore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15180168.5A EP3128765A1 (fr) | 2015-08-07 | 2015-08-07 | Procédé de traitement d'une bande sonore |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3128765A1 true EP3128765A1 (fr) | 2017-02-08 |
Family
ID=53783625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15180168.5A Withdrawn EP3128765A1 (fr) | 2015-08-07 | 2015-08-07 | Procédé de traitement d'une bande sonore |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3128765A1 (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054450A1 (fr) * | 1980-11-28 | 1982-06-23 | Jean-Claude Lafon | Perfectionnements aux dispositifs de prothèse auditive |
US4843623A (en) * | 1986-05-23 | 1989-06-27 | University De Franche-Comte | Hearing aid devices in which high frequency signal portions are transposed in low frequency compenstion signal portions |
US5077800A (en) * | 1988-10-14 | 1991-12-31 | Societe Anonyme Dite: Laboratorie D'audiologie Dupret-Lefevre S.A. | Electronic device for processing a sound signal |
DE19720651A1 (de) * | 1997-05-16 | 1998-11-26 | Siemens Audiologische Technik | Hörgerät mit verschiedenen Baugruppen zur Aufnahme, Weiterverarbeitung sowie Anpassung eines Schallsignals an das Hörvermögen eines Schwerhörigen |
WO2000075920A1 (fr) * | 1999-06-03 | 2000-12-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Procede permettant d'ameliorer l'intelligibilite d'un signal sonore, et dispositif de reproduction d'un signal sonore |
WO2007000161A1 (fr) * | 2005-06-27 | 2007-01-04 | Widex A/S | Prothese auditive avec reproduction des hautes frequences ameliorees et procede de traitement de signal |
-
2015
- 2015-08-07 EP EP15180168.5A patent/EP3128765A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054450A1 (fr) * | 1980-11-28 | 1982-06-23 | Jean-Claude Lafon | Perfectionnements aux dispositifs de prothèse auditive |
US4843623A (en) * | 1986-05-23 | 1989-06-27 | University De Franche-Comte | Hearing aid devices in which high frequency signal portions are transposed in low frequency compenstion signal portions |
US5077800A (en) * | 1988-10-14 | 1991-12-31 | Societe Anonyme Dite: Laboratorie D'audiologie Dupret-Lefevre S.A. | Electronic device for processing a sound signal |
DE19720651A1 (de) * | 1997-05-16 | 1998-11-26 | Siemens Audiologische Technik | Hörgerät mit verschiedenen Baugruppen zur Aufnahme, Weiterverarbeitung sowie Anpassung eines Schallsignals an das Hörvermögen eines Schwerhörigen |
WO2000075920A1 (fr) * | 1999-06-03 | 2000-12-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Procede permettant d'ameliorer l'intelligibilite d'un signal sonore, et dispositif de reproduction d'un signal sonore |
WO2007000161A1 (fr) * | 2005-06-27 | 2007-01-04 | Widex A/S | Prothese auditive avec reproduction des hautes frequences ameliorees et procede de traitement de signal |
Non-Patent Citations (2)
Title |
---|
FRANCIS KUK ET AL.: "Linear Frequency Transposition: Extending the Audibility of High-Frequency Information", 8 October 2006 (2006-10-08), XP002743680, Retrieved from the Internet <URL:www.hearingreview.com/2006/10/linear-frequency-transposition-extending-the-audibility-ofhigh-frequency-information> [retrieved on 20150827] * |
THOMAS I B ET AL: "THE INTELLIGIBILITY OF SPEECH TRANSPOSED DOWNWARD IN FREQUENCY BY ONE OCTAVE", JOURNAL OF THE AUDIO ENGINEERING SOCIETY, AUDIO ENGINEERING SOCIETY, NEW YORK, NY, US, vol. 18, no. 1, 1 February 1970 (1970-02-01), pages 56 - 62, XP000795083, ISSN: 1549-4950 * |
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Effective date: 20170809 |