JPS5520085A - Speaker driving system - Google Patents

Speaker driving system

Info

Publication number
JPS5520085A
JPS5520085A JP9484378A JP9484378A JPS5520085A JP S5520085 A JPS5520085 A JP S5520085A JP 9484378 A JP9484378 A JP 9484378A JP 9484378 A JP9484378 A JP 9484378A JP S5520085 A JPS5520085 A JP S5520085A
Authority
JP
Japan
Prior art keywords
frequency
speaker
converter
sampling
signal source
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.)
Pending
Application number
JP9484378A
Other languages
Japanese (ja)
Inventor
Hiroshi Saito
Masahiro Hamada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9484378A priority Critical patent/JPS5520085A/en
Publication of JPS5520085A publication Critical patent/JPS5520085A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To obtain the characteristics featuring a low cost and the excellent digital signal source by securing a specific relation between the sampling frequency of the D/A converter and the cut-off frequency of the speaker. CONSTITUTION:The audio reproduction system comprises digital signal source 9, D/A converter 10 and speaker 11. In this case, speaker 11 features an extremely large amount of attenuation since the secondary LPF is formed logically near the upper limit frequency of reproduction via the mass of the cone and the compliance of the cone root. In this connection, the sampling frequency is decided so that the formula of fh<fs/2 may be satisfied, where the sampling frequency of converter 10 is set to f2 Hz and the reproduction frequency of speaker 11 to fh Hz each. As a result, the high frequency distortion caused by the digital sampling can be eliminated.
JP9484378A 1978-07-31 1978-07-31 Speaker driving system Pending JPS5520085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9484378A JPS5520085A (en) 1978-07-31 1978-07-31 Speaker driving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9484378A JPS5520085A (en) 1978-07-31 1978-07-31 Speaker driving system

Publications (1)

Publication Number Publication Date
JPS5520085A true JPS5520085A (en) 1980-02-13

Family

ID=14121310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9484378A Pending JPS5520085A (en) 1978-07-31 1978-07-31 Speaker driving system

Country Status (1)

Country Link
JP (1) JPS5520085A (en)

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