JPH036335U - - Google Patents
Info
- Publication number
- JPH036335U JPH036335U JP1990067321U JP6732190U JPH036335U JP H036335 U JPH036335 U JP H036335U JP 1990067321 U JP1990067321 U JP 1990067321U JP 6732190 U JP6732190 U JP 6732190U JP H036335 U JPH036335 U JP H036335U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- calculated
- square root
- fourier transformed
- power spectral
- 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.)
- Granted
Links
- 230000003595 spectral effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- JOJYUFGTMHSFEE-YONYXQDTSA-M Cytarabine ocfosphate Chemical compound [Na+].O[C@H]1[C@H](O)[C@@H](COP([O-])(=O)OCCCCCCCCCCCCCCCCCC)O[C@H]1N1C(=O)N=C(N)C=C1 JOJYUFGTMHSFEE-YONYXQDTSA-M 0.000 description 1
- 238000005311 autocorrelation function Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Noise Elimination (AREA)
Description
第１図は本考案の信号処理装置の回路ブロツク
図、第２図はその部分変更例を示す図、第３図は
従来のＳＰＡＣを実施するための回路ブロツク図
である。
１……イコライザ、２……自己相関関数回路、
４……波形切出回路、５……周期決定回路、６…
…相関関数波形接続回路、８……平方根演算回路
、２１……フーリエ変換回路、２２……電力スペ
クトル演算回路、２３……フーリエ逆変化回路、
２５……雑音低減回路。
FIG. 1 is a circuit block diagram of a signal processing device according to the present invention, FIG. 2 is a diagram showing a partial modification thereof, and FIG. 3 is a circuit block diagram for implementing a conventional SPAC. 1...Equalizer, 2...Autocorrelation function circuit,
4...Waveform extraction circuit, 5...Period determination circuit, 6...
... Correlation function waveform connection circuit, 8 ... Square root calculation circuit, 21 ... Fourier transform circuit, 22 ... Power spectrum calculation circuit, 23 ... Fourier inverse change circuit,
25...Noise reduction circuit.
Claims (1)
域に分解し、該スペクトル領域から電力スペクト
ル値を演算し、該電力スペクトル値の平方根を演
算し、その平方根をフーリエ逆変換することによ
り２乗歪を除去して信号波形を再編集し、出力す
ることを特徴とする信号処理装置。 The audio input signal is Fourier transformed and decomposed into a spectral domain, a power spectral value is calculated from the spectral domain, the square root of the power spectral value is calculated, and the square root is inversely Fourier transformed to remove square distortion. A signal processing device characterized in that the signal waveform is re-edited and outputted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990067321U JPH054355Y2 (en) | 1990-06-27 | 1990-06-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990067321U JPH054355Y2 (en) | 1990-06-27 | 1990-06-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH036335U true JPH036335U (en) | 1991-01-22 |
| JPH054355Y2 JPH054355Y2 (en) | 1993-02-03 |
Family
ID=31600792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990067321U Expired - Lifetime JPH054355Y2 (en) | 1990-06-27 | 1990-06-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH054355Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007261230A (en) * | 2006-03-30 | 2007-10-11 | Hiromi Yamashita | Free enclosure for book |
-
1990
- 1990-06-27 JP JP1990067321U patent/JPH054355Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007261230A (en) * | 2006-03-30 | 2007-10-11 | Hiromi Yamashita | Free enclosure for book |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054355Y2 (en) | 1993-02-03 |
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