DE2555263B1 - Traffic announcement system - Google Patents

Traffic announcement system

Info

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Withdrawn
Application number
DE2555263A
Other languages
German (de)
Inventor
Werner 4781 Hoerste Kukuk
Friedrich 4780 Lippstadt Tillmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westfaelische Metall Industrie KG Hueck and Co
Original Assignee
Westfaelische Metall Industrie KG Hueck and Co
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 Westfaelische Metall Industrie KG Hueck and Co filed Critical Westfaelische Metall Industrie KG Hueck and Co
Priority to DE2555263A priority Critical patent/DE2555263B1/en
Priority to BE2055453A priority patent/BE848316A/en
Priority to NL7612973A priority patent/NL7612973A/en
Priority to SE7613443A priority patent/SE7613443L/en
Publication of DE2555263B1 publication Critical patent/DE2555263B1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00Public address systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/04Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/009Signal processing in [PA] systems to enhance the speech intelligibility

Description

Oktave bewirkt. ^Octave effects. ^

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

Leistung kann alsooptimal genutzt werden. wird. Die Frequenzen für den hohen und tiefen TonPerformance can therefore be used optimally. will. The frequencies for the high and low notes Zweckmäßig wird das Verkehrsdurchsagesystem mit können in bekannter Weise elektronisch erzeugtThe traffic announcement system is expediently generated electronically in a known manner

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

Fahrzeuge vereinigt, indem der Lautsprecher des 5 Raumbedarfs für die Starktonhörner.Vehicles united by the loudspeaker of the 5 space requirements for the high-pitched horns.

Claims (2)

Patentansprüche:Patent claims: ,.Verkehrsdurchsagesystem mit einem'Mikrofon einem Leistungsverstärker-und einem ^PJ^ dadurch gekennzeichnet. d^, .Verkehrsdurchsagesystem with a'microphone a power amplifier and a ^ PJ ^ characterized. d ^ sehen sind, die eine A^^^ unterhalb 1 kHz mit einer Steilheit yo £see are the an A ^^^ below 1 kHz with a slope yo £ 12 dB pro Oktave und eine Anhebu^g der hreque12 dB per octave and an increase in the hreque ien über 1 kHz mit einer Steiihe.t von etwa 3 dB pro Oktave bewirken. Anbruch tien above 1 kHz with a slope of about 3 dB per Effect octave. Dawn t 2. Verkehrsdurchsagesystem M™ ,^f^V' dadurch gekennzeichnet daß das erste FiIw .eine Absenkung mit einer Steilheit von etwa 18 dB pro2. Traffic announcement system M ™, ^ f ^ V 'characterized in that the first FiIw .ein lowering with a steepness of about 18 dB per
DE2555263A 1975-12-09 1975-12-09 Traffic announcement system Withdrawn DE2555263B1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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