ICT Multimedia

2015-03-05 5:22 am
Given the following information for a newly recorded audio file

Sample rate : 44100
Channels : Stereo
Resolution : 16-bit

Also given that the duration of the recored audio file is 20 seconds.

1. Calculate the maximum number of samples can be recorded each second in the above setting.
2. How many byte(s) is/are needed to record one sample of the above audio file?
3. What will the file size be if the audio is stored in an uncompressed format?

回答 (1)

2015-03-08 10:04 pm
✔ 最佳答案
Sample rate : 44.1kHz
Channels : Stereo
Bits per sample : 16 bit
Duration : 20 seconds

(1)44100 samples per second

(2) 16 bit/8= 2 bytes

(3)fileSize = bits per sample * samples per second * channels * duration
=16*44100*2*20 bit
=2822400bit/8/1024/1024
=3.36 MB (corr. to 3 sig.fig.)
參考: me


收錄日期: 2021-04-29 22:32:40
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150304000051KK00096

檢視 Wayback Machine 備份