Iyokuro Spectral ati Wiener Filtering Quiz

Awọn idahun ati awọn alaye han bi o ṣe n mu ibeere naa.

1. Iṣẹ iṣe didanubi wo ni o ni nkan ṣe pẹlu iyokuro iwoye?
   • Ariwo orin (awọn ohun orin alaileto)
   • Ifagile iwoyi
   • Didara iwọn didun
   • Iyipada ipolowo
2. Ninu agbegbe wo ni iyokuro iwoye ati sisẹ Wiener ni akọkọ ṣiṣẹ?
   • Akoko akoko aise nikan
   • Agbegbe igbohunsafẹfẹ lẹhin STFT kan
   • Ašẹ ọrọ
   • Ibugbe aworan
3. Under a specified statistical signal-and-noise model, what criterion does the classical Wiener estimator minimize?
   • The number of STFT frames
   • The file’s bit rate
   • Expected mean-squared estimation error
   • The number of microphones
4. Bawo ni iyokuro spectral ojo melo ṣe iṣiro ariwo julọ.Oniranran?
   • Lati a ID nọmba monomono
   • Lati awọn tiransikiripiti ọrọ
   • Lati awọn ti npariwo apa ti awọn ifihan agbara
   • Lati ipalọlọ tabi awọn abala ọrọ-ọrọ ti ohun
5. In the common power-spectrum Wiener gain G=Ps/(Ps+Pn), what do Ps and Pn denote?
   • Estimated clean-signal and noise powers in that frequency bin
   • Speech and noise sample counts
   • Two different phase angles
   • The number of filters and frames
6. Iroro bọtini wo ni o fi opin si awọn ọna mejeeji lodi si awọn ohun lojiji bi slam ilẹkun?
   • Ọrọ naa n pariwo nigbagbogbo
   • Wipe ariwo ni jo adaduro
   • Wipe o wa kan nikan agbọrọsọ
   • Wipe ohun naa wa ni sitẹrio
7. What may happen to the estimated magnitude in a spectral-subtraction bin when the noise estimate exceeds the observation?
   • It is wrapped into a positive phase
   • It is replaced by a transcript token
   • The negative result is floored to zero
   • It is doubled to preserve loudness
8. When a real-valued Wiener gain is applied to a complex noisy STFT coefficient, what is commonly done with its phase?
   • Phase is replaced by the text prompt
   • Phase is always set to zero
   • The coefficient is converted into a stereo channel
   • The noisy phase is retained while the magnitude is scaled