RU97116274A - NOISE SUPPRESSION METHOD BY SPECTRAL SUBTRACTION - Google Patents
NOISE SUPPRESSION METHOD BY SPECTRAL SUBTRACTIONInfo
- Publication number
- RU97116274A RU97116274A RU97116274/09A RU97116274A RU97116274A RU 97116274 A RU97116274 A RU 97116274A RU 97116274/09 A RU97116274/09 A RU 97116274/09A RU 97116274 A RU97116274 A RU 97116274A RU 97116274 A RU97116274 A RU 97116274A
- Authority
- RU
- Russia
- Prior art keywords
- function
- spectral subtraction
- spectral
- estimate
- formula
- Prior art date
Links
- 230000003595 spectral Effects 0.000 title claims 11
- 230000001629 suppression Effects 0.000 title claims 2
- 238000001228 spectrum Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
Claims (1)
4. Способ по п. 3, отличающийся тем, что упомянутая авторегрессионная модель имеет порядок, приблизительно равный 10.3. The method according to p. 2, characterized in that the said autoregressive model has an order of approximately equal
4. The method according to p. 3, characterized in that the said autoregressive model has an order of approximately 10.
где весовая функция,
δ(ω) - коэффициент вычитания.5. The method according to p. 3, characterized in that the said function spectral subtraction corresponds to the formula
Where weight function
δ (ω) is the subtraction coefficient.
9. Способ по п. 3, отличающийся тем, что упомянутая функция спектрального вычитания соответствует формуле
10. Способ по п. 3, отличающийся тем, что упомянутая функция спектрального вычитания соответствует формуле:
8. The method according to p. 3, characterized in that the said function spectral subtraction corresponds to the formula
9. The method according to p. 3, characterized in that the said function spectral subtraction corresponds to the formula
10. The method according to p. 3, characterized in that the said function spectral subtraction corresponds to the formula:
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9500321-6 | 1995-01-30 | ||
SE9500321A SE505156C2 (en) | 1995-01-30 | 1995-01-30 | Procedure for noise suppression by spectral subtraction |
PCT/SE1996/000024 WO1996024128A1 (en) | 1995-01-30 | 1996-01-12 | Spectral subtraction noise suppression method |
Publications (2)
Publication Number | Publication Date |
---|---|
RU97116274A true RU97116274A (en) | 1999-07-20 |
RU2145737C1 RU2145737C1 (en) | 2000-02-20 |
Family
ID=20397011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU97116274A RU2145737C1 (en) | 1995-01-30 | 1996-01-12 | Method for noise reduction by means of spectral subtraction |
Country Status (14)
Country | Link |
---|---|
US (1) | US5943429A (en) |
EP (1) | EP0807305B1 (en) |
JP (1) | JPH10513273A (en) |
KR (1) | KR100365300B1 (en) |
CN (1) | CN1110034C (en) |
AU (1) | AU696152B2 (en) |
BR (1) | BR9606860A (en) |
CA (1) | CA2210490C (en) |
DE (1) | DE69606978T2 (en) |
ES (1) | ES2145429T3 (en) |
FI (1) | FI973142A (en) |
RU (1) | RU2145737C1 (en) |
SE (1) | SE505156C2 (en) |
WO (1) | WO1996024128A1 (en) |
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- 1996-01-12 KR KR1019970705131A patent/KR100365300B1/en not_active IP Right Cessation
- 1996-01-12 CA CA002210490A patent/CA2210490C/en not_active Expired - Fee Related
- 1996-01-12 DE DE69606978T patent/DE69606978T2/en not_active Expired - Fee Related
- 1996-01-12 WO PCT/SE1996/000024 patent/WO1996024128A1/en active IP Right Grant
- 1996-01-12 EP EP96902028A patent/EP0807305B1/en not_active Expired - Lifetime
- 1996-01-12 AU AU46369/96A patent/AU696152B2/en not_active Ceased
- 1996-01-12 RU RU97116274A patent/RU2145737C1/en not_active IP Right Cessation
- 1996-01-12 BR BR9606860A patent/BR9606860A/en not_active IP Right Cessation
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- 1996-01-12 CN CN96191661A patent/CN1110034C/en not_active Expired - Fee Related
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