
Quiz codage du son
Authored by Ruben Rossi
Science, Computers
KG - 5th Grade
Used 7+ times

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7 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Lequel de ces deux signaux occupera l'espace numérique le plus important ?
Signal 1
Signal 2
les deux occuperons le même espace
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Sélectionner le signal qui aura la taille la plus faible une fois numérisé. (L'échelle de temps est la même dans les deux cas)
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Lorsqu’on quantifie un signal sur 24 bits, combien de niveaux de tension différents a-t-on la possibilité de coder ?
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Que vaut la période d'échantillonnage de ce signal?
1 s
1 ms
0.1 ms
10 ms
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Quelle étape de la numérisation vient-on de réaliser en récupérant la valeur du signal analogique au niveau des points noirs sur la courbe ?
la conversion
la numérisation
la quantification
l’échantillonnage
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
un signal analogique est:
un signal qui varie au cours du temps
un signal constitué d'une succession de paliers constants
un signal continu, que l'on peut tracer sans lever le stylo
un signal discontinu
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Que vaut la fréquence d'échantillonnage de ce signal?
10 Hz
1 Hz
0.1 Hz
1000 Hz
100 Hz
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