Offset size name description 36 4 subchunk2id

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Offset Size Name Description 36 4 Subchunk2ID Contains the letters ”data” 40 4 Subchunk2Size == NumSamples * NumChannels * BitsPer- Sample/8 This is the number of bytes in the data. You can also think of this as the size of the read of the subchunk following this number. 44 * Data The actual sound data. En informatique, certaines donn´ ees telles que les nombres entiers peuvent ˆ etre repr´ esent´ ees sur plusieurs octets. L’ordre dans lequel ces octets sont organis´ es en m´ emoire ou dans une communication est appel´ e endianness (mot anglais traduit par boutisme 1). De la Page 2 de 3
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Travaux Pratiques Programmation Orient´ ee Objets(suite) eme manire que certains langages humains s’´ ecrivent de gauche ` a droite, et d’autres s’´ ecrivent de droite `a gauche, il existe une alternative majeure ` a l’organisation des octets repr´ esentant une donn´ ee : l’orientation big-endian indique que les octets sont rang´ es du poids fort vers le poids faible, alors que l’orientation little-endian indique que les octets sont rang´ es du poids faible au poids fort. On demande d’´ ecrire un programme C++ qui affiche les caract´ eristiques d’un fichier WAV. Page 3 de 3
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