JPH0480200U

JPH0480200U -

Info

Publication number: JPH0480200U
Application number: JP12357190U
Authority: JP
Priority date: 1990-11-27
Filing date: 1990-11-27
Publication date: 1992-07-13

Description

[Brief explanation of drawings]

第１図は本考案に係るオーデイオ信号再生装置
の一実施例を示すブロツク図、第２図は受聴者が
ヘツドホンを装着した状態を示す概略図、第３図
は受聴者の聴覚部分の伝達特性を演算する手段の
要部を示す図、第４図は受聴者と仮想のＬおよび
Ｒチヤンネル・スピーカの関係を示す図、第５図
は第１図の距離演算回路を示すブロツク図、第６
図ＡおよびＢはインパルスの発振および受信タイ
ミングを示す波形図である。１……デコーダ、３……第１のフイルタ回路（
フイルタ回路）、５……第２のフイルタ回路（フ
イルタ回路）、７……ＣＰＵ、９……記憶回路（
ＲＡＭ）、１１……受聴者、１３……ステレオ・
ヘツドホン、１５……スピーカ、１７……マイク
ロホン、１９……キー入力装置、２１……仮想の
Ｌチヤンネル・スピーカ、２３……仮想のＲチヤ
ンネル・スピーカ、２５，２７，４１……フイル
タ回路、２９……ＲＯＭ、３１，３３……遅延回
路、３５……距離演算回路、３７……発振器、３
９……受信器。 Fig. 1 is a block diagram showing an embodiment of the audio signal reproducing device according to the present invention, Fig. 2 is a schematic diagram showing a state in which a listener is wearing headphones, and Fig. 3 is a transfer characteristic of the auditory part of the listener. FIG. 4 is a diagram showing the relationship between the listener and the virtual L and R channel speakers. FIG. 5 is a block diagram showing the distance calculation circuit of FIG. 1.
Figures A and B are waveform diagrams showing impulse oscillation and reception timing. 1... Decoder, 3... First filter circuit (
filter circuit), 5...second filter circuit (filter circuit), 7...CPU, 9...memory circuit (
RAM), 11... Listener, 13... Stereo
Headphone, 15...Speaker, 17...Microphone, 19...Key input device, 21...Virtual L channel speaker, 23...Virtual R channel speaker, 25, 27, 41...Filter circuit, 29 ...ROM, 31, 33 ... Delay circuit, 35 ... Distance calculation circuit, 37 ... Oscillator, 3
9...Receiver.

Claims

[Claims for Utility Model Registration] Transfer characteristics from virtual left and right channel speakers placed in front of a listener to left and right listening points of the listener are expressed as hL(ω) and hR.
(ω), the reverse transfer characteristics from the left and right channel speakers of the stereo headphone worn by the listener to the left and right listening points are HL￣ ₁ (ω) and HR￣ ₁ (ω), the reverse transfer characteristics in the left and right external auditory parts of the listener are expressed as EL￣ ₁ (ω) and ER￣ ₁ (ω), at least the reverse transfer characteristic HL￣ ₁ (ω), H
R￣ ₁ (ω), EL￣ ₁ (ω) and ER￣ ₁ (
a memory circuit that stores data regarding ω) in advance; and a transfer characteristic based on the data from the memory circuit.
a first filter circuit that passes the audio signal of the left channel by hL(ω)×HL￣ ₁ ×EL￣ ₁ (ω)], and a transfer characteristic [hR(ω)× HR￣ ₁ (ω)×ER￣ ₁ (ω)
An audio signal reproducing device comprising: a second filter circuit for passing a right channel audio signal through a second filter circuit;