DE2555263B1 - Traffic announcement system - Google Patents
Traffic announcement systemInfo
- Publication number
- DE2555263B1 DE2555263B1 DE2555263A DE2555263A DE2555263B1 DE 2555263 B1 DE2555263 B1 DE 2555263B1 DE 2555263 A DE2555263 A DE 2555263A DE 2555263 A DE2555263 A DE 2555263A DE 2555263 B1 DE2555263 B1 DE 2555263B1
- Authority
- DE
- Germany
- Prior art keywords
- announcement system
- traffic announcement
- per
- octave
- khz
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
- H04R2227/009—Signal processing in [PA] systems to enhance the speech intelligibility
Description
3. Verkehrsdurchsagesystem nach Anspruch J.3. Traffic announcement system according to claim J.
dadurch gekennzeichnet, daß ein Filter vorgesehen ist, das eine starke Absenkung der Frequenzen übercharacterized in that a filter is provided is that a strong lowering of the frequencies above
6 kHz bewirkt A^c«r,.rh t6 kHz causes A ^ c «r, .rh t
4. Verkehrsdurchsasesystem nach. Ansprurt 1.4. Traffic search system according to. Claim 1.
dadurch gekennzeictaetdaß es mit einer schalteinrichtung für vo rfftbrndm£ this is characterized by the fact that it is equipped with a switchgear for front-of-house burners £
Dieser Anstieß ist besonders schädlich, denn &?Λΐ. So!ts bestimmen diese tieffretjusnten Anteüe \vc~cn jhrcr relativ großsn Amplitude die maximale Ausstcuc-This nudge is particularly harmful because &? Λΐ . S o! Ts this tieffretjusnten Anteüe \ vc ~ cn jhrcr relatively g ro ß sn amplitude determine the maximum Ausstcuc-
.0.0
durchsagesystems erfolgtannouncement system takes place
1010
bezieht sich auf ein Verkehr^sa *rksamen Frequenzen. z. B. auch der Frequenzen um zulassen. Andererseits werden in der Prara derartige Verstärker fast immer übersteuert. Die Slationsspitzen werden abgekappt. Bei starkerrefers to a traffic ^ strong frequencies. z. B. also the frequencies to allow. On the other hand, such amplifiers are almost always overdriven in the Prara. The slation tips are cut off. With strong
w euerung entstehen annähernd rechteckförnuge UD^uerung ^ ^^ ^ ^ Gn|ndf ^^w e Acidification caused nearly rechteckförnuge UD ^ Acidification ^ ^^ ^ ^ Gn | ndf ^^
der menschlichen Stimme gleich ist. Sie liegen etwa umis equal to the human voice. You're about to
100 bis 2ö0 Hz. Eine solche Wiedergabe ist weitgehend HW ms ^ Grundf z fur den Hörer 100-2 OE0 Hz. Such reproduction is largely HW ms ^ z Grundf for the handset
^βΐίοΙ1βη über die Tonhöhe enthält (Sprachnicht jedoch über die für die Sprachverständ-JJ1 J en Vokale. deren stärkster Frequenzan-^ βΐίοΙ1βη about the pitch (speech not, however, about the for the speech understanding JJ 1 J en Vo kale.
deshalb also zweckmäßig, die tiefen unterhalb des Formantenbereichs sehr ζ£$ abzlisenken. Ein derartig verbesserter s^eW^ a übersteuerung RechteckschwingungeTen stehen· deren Grundfrequenzen sich im Forman-So desha lb expedient deep below the formant spectrum with a £ $ ζ abzlisenken. E in such an improved s ^ eW ^ a overdrive square wavesTen are · whose fundamental frequencies are in the form of
sich nun gezeigt, daß eine Absenkung von mehr als 12 dB pro Oktave sich für den Übersteuerungsfall noch günstiger auswirkt a!s allein die Kompensation des Nahbesprechungseffekts. Es ist deshalb vorteilhaft, einen Hochpaßfilter mit einernow been shown that a reduction of more than 12 dB per octave affects even more favorable for the override event a! s alone compensate for proximity effect. It is therefore advantageous to use a high-pass filter with a
Dwj,.,....j mit einem Γ
ker und eitlem Lautsprecher. Derartige s, die z. B. zur Durchsage von D wj,., .... j with a Γ
ker and vain speakers. Such s, the z. B. to announce
^MMitteirf raqudki von etwa V kHz gemäß 5^ günstigsten Frequenz für Signale auch für ?5? erreichen, dann ergibt sich als^ MMitteirf raqudki of about V kHz according to 5 ^ the most favorable frequency for signals also for? 5? reach, then results as
iidie sprachubertragung eine ii the voice transmission a
imin the
«dMSpMqi» Stelien im Stra g«DMSpMqi» steles in the street
skd.ishlsBi tebssondere unter zu geringer Spracnver von etwa ^skd.ishlsBi tebss especially under too little language of about ^
männlichen Stimme , bis6kHzeinenmitUeren Abfall pro Oktave zeigt erscheint einemale voice until 6kHz shows a drop per octave a appears
. Vl 4. Vl 4
des Lautsprechers erfolgt Die zur Verfügung stehende Systems auch zur Abstrahlung der Signaltöne benutztThe available system is also used to emit the signal tones
einer Tonfolgeschalteinrichtung für vorfahrtberechtigte werden. Es ergibt sich insbesondere die Ersparnis desa tone sequence switching device for those with right of way. There is in particular the saving of the
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2555263A DE2555263B1 (en) | 1975-12-09 | 1975-12-09 | Traffic announcement system |
BE2055453A BE848316A (en) | 1975-12-09 | 1976-11-16 | ACOUSTIC COMMUNICATION SYSTEM FOR TRAFFIC, |
NL7612973A NL7612973A (en) | 1975-12-09 | 1976-11-22 | TRAFFIC ANNOUNCEMENT SYSTEM. |
SE7613443A SE7613443L (en) | 1975-12-09 | 1976-12-01 | TRAFFIC SPEAKER SYSTEM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2555263A DE2555263B1 (en) | 1975-12-09 | 1975-12-09 | Traffic announcement system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2555263B1 true DE2555263B1 (en) | 1977-02-10 |
Family
ID=5963861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2555263A Withdrawn DE2555263B1 (en) | 1975-12-09 | 1975-12-09 | Traffic announcement system |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE848316A (en) |
DE (1) | DE2555263B1 (en) |
NL (1) | NL7612973A (en) |
SE (1) | SE7613443L (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0505645A1 (en) * | 1991-03-27 | 1992-09-30 | R.G.A. & Associates Ltd. | Public address intelligibility enhancement system |
US8050434B1 (en) | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
-
1975
- 1975-12-09 DE DE2555263A patent/DE2555263B1/en not_active Withdrawn
-
1976
- 1976-11-16 BE BE2055453A patent/BE848316A/en unknown
- 1976-11-22 NL NL7612973A patent/NL7612973A/en not_active Application Discontinuation
- 1976-12-01 SE SE7613443A patent/SE7613443L/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0505645A1 (en) * | 1991-03-27 | 1992-09-30 | R.G.A. & Associates Ltd. | Public address intelligibility enhancement system |
US8050434B1 (en) | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
US8509464B1 (en) | 2006-12-21 | 2013-08-13 | Dts Llc | Multi-channel audio enhancement system |
US9232312B2 (en) | 2006-12-21 | 2016-01-05 | Dts Llc | Multi-channel audio enhancement system |
Also Published As
Publication number | Publication date |
---|---|
SE7613443L (en) | 1977-06-10 |
NL7612973A (en) | 1977-06-13 |
BE848316A (en) | 1977-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BHN | Withdrawal |