Idanwo ti o sopọ mọ itọsọna · Alabọde Ipele

Beamforming ati Gbohungbo Arrays adanwo

Review array delays, steering geometry, MVDR constraints, and spacing limits that shape directional audio capture in noisy acoustic environments.

Jẹmọ itọsọna awọn ọnaBeamforming Ati Gbohungbo Arrays
Ibeere 1 ti 8

Itọkasi ti ara wo ni gbigbona ni akọkọ nilokulo?

Awotẹlẹ gbogbo ibeere8 ibeere

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

  1. Itọkasi ti ara wo ni gbigbona ni akọkọ nilokulo?
    • Awọn iyatọ akoko/akoko ti dide kọja ọpọ awọn gbohungbohun
    • Awọ orisun ohun
    • Ipele batiri ti ẹrọ naa
    • Awọn iwọn otutu ti yara naa
  2. Kini ilana itanna beamforming ti o rọrun julọ ti a pe?
    • Fourier kika
    • Idaduro-ati-apao
    • Spectral ibode
    • Pitch titele
  3. What is the defining constraint in an MVDR beamformer?
    • Maximize every incoming direction equally
    • Remove the desired source before summation
    • Preserve the desired target response while minimizing output power
    • Convert the microphone signals into text
  4. Báwo ni ìtúpalẹ̀ ṣe wé mọ́ dídi ariwo gbohungbohun kan ṣoṣo?
    • O rọpo rẹ ni kikun ati ki o mu ki o di arugbo
    • O jẹ aami si rẹ
    • O ṣiṣẹ nikan laisi sisẹ miiran
    • O ṣe afikun rẹ nipa fifi alaye aaye kun aini gbohungbohun ẹyọkan
  5. Why can microphone spacing that is too large create spatial aliasing?
    • Different directions can produce indistinguishable sampled phase differences at a frequency
    • The microphones stop recording sound
    • The sample rate automatically drops to zero
    • The array loses all time information
  6. Kini 'itumọ iṣan ara'?
    • Beamforming ṣe patapata nipa ọwọ
    • Apapọ awọn nẹtiwọọki ti o jinlẹ (fun apẹẹrẹ, boju-boju tabi iṣiro itọsọna) pẹlu beamformer aaye
    • Yọ gbogbo awọn microphones kuro
    • A iru ti nikan-ikanni ipolowo shifter
  7. What can happen when an MVDR beamformer’s assumed steering vector is inaccurate?
    • The array automatically gains microphones
    • The audio changes into a spectrogram image
    • Its target preservation or interference suppression can degrade
    • The desired source is always amplified without limit
  8. What information determines the steering delays for a chosen look direction?
    • Audio file format and transcript length
    • Speaker age and language
    • The number of model parameters alone
    • Target direction, microphone geometry, and speed of sound