ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﮔﻴﺮﻧﺪﻩ ﻣﻰ ﺗﻮﺍﻧﺪ ﻓﺎﻳﻠﻬﺎ
WMA/MP3
— : ٢٣ ﻛﻴﻠﻮ ﺑﻴﺖ ﺑﺮ ﺛﺎﻧﻴﻪ
٢٣ ﻛﻴﻠﻮﻫﺮﺗﺰ، ١٫۴۴ ﻛﻴﻠﻮﻫﺮﺗﺰ، ٨۴ ﻛﻴﻠﻮﻫﺮﺗﺰ )ﺑﺮﺍ
۶١ ﻛﻴﻠﻮﻫﺮﺗﺰ، ۵٠٫٢٢ ﻛﻴﻠﻮﻫﺮﺗﺰ، ۴٢ ﻛﻴﻠﻮﻫﺮﺗﺰ
،۵٠٫٢٢ ﻛﻴﻠﻮﻫﺮﺗﺰ، ٢٣ ﻛﻴﻠﻮﻫﺮﺗﺰ، ١٫۴۴ ﻛﻴﻠﻮﻫﺮﺗﺰ
،
ISO 9660 Level 1/Level 2
Windows extension
ﺣﺪﺍﻛﺜﺮ ﺗﻌﺪﺍﺩ ﺣﺮﻭﻑ ﻧﺎﻣﻬﺎﻱ ﻓﺎﻳﻞ/ﭘﻮﺷﻪ ﺑﺮ ﺍﺳﺎﺱ
۴ ﻓﺮﻣﺘﻬﺎﻱ ﺩﻳﺴﻜﻬﺎﻱ ﺍﻧﺘﺨﺎﺏ ﺷﺪﻩ )ﺷﺎﻣﻞ ﭘﺴﻮﻧﺪﻫﺎﻱ
.( ﻣﺘﻔﺎﻭﺕ ﺍﺳﺖ
: ﺗﺎ ٢١ ﻛﺎﺭﺍﻛﺘﺮ
: ﺗﺎ ١٣ ﻛﺎﺭﺍﻛﺘﺮ
: ﺗﺎ ۴۶ ﻛﺎﺭﺍﻛﺘﺮ
ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﻗﺎﺩﺭ ﺑﻪ ﺷﻨﺎﺧﺖ ﺗﺎ ٢١۵ ﻓﺎﻳﻞ ، ۵۵٢ ﭘﻮﺷﻪ ﻭ
ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﮔﻴﺮﻧﺪﻩ ﻣﻰ ﺗﻮﺍﻧﺪ ﻓﺎﻳﻠﻬﺎ ﺿﺒﻂ ﺷﺪﻩ ﺩﺭ
VBR
.)ﺳﺮﻋﺘﻬﺎ ﺑﻴﺖ ﻣﺘﻔﺎﻭﺕ( ﺭﺍ ﭘﺨﺶ ﻛﻨﺪ
ﻣﻘﺪﺍﺭ ﺍﺧﺘﻼﻑ ﺩﺭ ﺯﻣﺎﻥ
ﺳﭙﺮ ﺷﺪﻩ ﺍﺯ ﭘﺨﺶ ﺩﺍﺭﻧﺪ ﻭ ﺯﻣﺎﻥ ﺩﺭﺳﺖ ﺳﭙﺮ ﺷﺪﻩ
ﺍﺯ ﭘﺨﺶ ﺭﺍ ﻧﺸﺎﻥ ﻣﻨﻰ ﺩﻫﻨﺪ. ﺑﺨﺼﻮﺹ، ﺑﻌﺪ ﺍﺯ ﺍﺟﺮﺍی
.ﻋﻤﻠﻜﺮﺩ ﺟﺴﺘﺠﻮ، ﺍﻳﻦ ﺍﺧﺘﻼﻑ ﺑﺎﺭﺯﺗﺮ ﻣﯽ ﺷﻮﺩ
:ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﮔﻴﺮﻧﺪﻩ ﻗﺎﺩﺭ ﺑﻪ ﭘﺨﺶ ﻓﺎﻳﻠﻬﺎ ﺯﻳﺮ ﻧﻤﻰ ﺑﺎﺷﺪ
ﻭ
ﻛﺪ ﮔﺬﺍﺭی ﺷﺪﻩ ﺗﻮﺳﻂ ﻓﺮﻣﺖ
MP3i
.ﻛﺪﮔﺬﺍﺭ ﺷﺪﻩ ﺑﺎ ﻓﺮﻣﺖ ﻧﺎﻣﻨﺎﺳﺖ
.٢/١ ﻛﺪﮔﺬﺍﺭ ﺷﺪﻩ ﺑﺎ ﻻﻳﻪ
،ﻛﺪ ﮔﺬﺍﺭی ﺷﺪﻩ ﺑﺎ ﻓﺮﻣﺖ ﻓﺸﺮﺩﻩ
Windows Media® Audio
ﻛﻪ ﺍﺯ ﻛﭙﻰ ﺷﺪﻥ
DRM
، ﻭ
،
ATRAC3
AIFF
ﻋﻤﻠﻜﺮﺩ ﺟﺴﺘﺠﻮ ﻛﺎﺭ ﻣﻰ ﻛﻨﺪ ﻭﻟﻰ ﺳﺮﻋﺖ ﺟﺴﺘﺠﻮ ﺛﺎﺑﺖ
٣١
ﻓﺎﺭﺳﻰ
:ﺩﺍﺭﺍ ﺷﺮﺍﻳﻂ ﺯﻳﺮ ﺭﺍ ﭘﺨﺶ ﻛﻨﺪ
ﺳﺮﻋﺖ ﺑﻴﺖ
MP3/WMA
٠٢٣ ﻛﻴﻠﻮ ﺑﻴﺖ ﺑﺮ ﺛﺎﻧﻴﻪ
:
ﻓﺮﻛﺎﻧﺲ ﻧﻤﻮﻧﻪ ﮔﻴﺮی
MP3
(
MPEG-1
(
)ﺑﺮﺍ
MPEG-2
:
ﻓﺮﻛﺎﻧﺲ ﻧﻤﻮﻧﻪ ﮔﻴﺮی
WMA
٨۴ ﻛﻴﻠﻮﻫﺮﺗﺰ
:ﻓﺮﻣﺖ ﺩﻳﺴﻚ
،
،
Joliet
Romeo
ﻳﺎ
—ﺣﺮﻓﻲ
<.wma>
<.mp3>
ISO 9660 Level 1 –
ISO 9660 Level 2 –
: ﺗﺎ ۴۶ ﻛﺎﺭﺍﻛﺘﺮ
Romeo –
: ﺗﺎ ٢٣ ﻛﺎﺭﺍﻛﺘﺮ
Joliet –
Windows extension –
.٨ ﺳﻄﺢ ﺳﻠﺴﻠﻪ ﻣﺮﺍﺗﺐ ﺍﺳﺖ
ﻓﺎﻳﻞ ﻫﺎ ﺿﺒﻂ ﺷﺪﻩ ﺩﺭ
VBR
ﻓﺎﻳﻠﻬﺎی
MP3
.
MP3 PRO
ﻓﺎﻳﻠﻬﺎ
MP3
ﻓﺎﻳﻠﻬﺎ
MP3
ﻓﺎﻳﻠﻬﺎی
WMA
.ﺗﺨﺼﺼﯽ، ﻭ ﺻﻮﺗﯽ
ﻛﻪ ﺑﺮ ﺍﺳﺎﺱ
ﻓﺎﻳﻠﻬﺎ
WMA
.ﻧﻴﺴﺘﻨﺪ
ﻓﺮﻣﺖ ﺷﺪﻩ ﺑﺎ
ﻓﺎﻳﻠﻬﺎ
WMA
.ﻣﺤﺎﻓﻈﺖ ﻣﻰ ﺷﻮﻧﺪ
ﻓﺎﻳﻠﻬﺎﻳﻰ ﻛﻪ ﺩﺍﺭﺍ ﺩﺍﺩﻩ ﻫﺎﻳﻰ ﻣﺎﻧﻨﺪ
.ﻏﻴﺮﻩ ﻣﻰ ﺑﺎﺷﻨﺪ
ﭘﺨﺶ ﻳﻚ ﺳﻰ ﺩﻯ ﺧﻮﺍﻧﺪﻧﻰ ﻳﺎ ﭘﺎﻙ ﻛﺮﺩﻧﻰ
•
.ﺍﺳﺘﻔﺎﺩﻩ ﻛﻨﻴﺪ
( ﻭ
) ﺻﻮﺗﻰ
–
CD-DA
ﺑﺎﺷﺪ، ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﻣﻰ ﺗﻮﺍﻧﺪ ﻓﻘﻂ
ﻓﺎﻳﻠﻬﺎ ﺑﺎ ﻧﻮﻉ ﻣﺸﺎﺑﻬﻰ ﻛﻪ ﺩﺭ ﺍﺑﺘﺪﺍ ﺗﺸﺨﻴﺺ ﺩﺍﺩﻩ ﺷﺪﻩ ﺍﻧﺪ
–
ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﮔﻴﺮﻧﺪﻩ ﻣﻰ ﺗﻮﺍﻧﺪ ﺩﻳﺴﻜﻬﺎ ﭼﻨﺪ ﺑﺨﺸﻰ ﺭﺍ
ﭘﺨﺶ ﻛﻨﺪ، ﻫﺮ ﭼﻨﺪ ﻛﻪ، ﺑﺨﺸﻬﺎ ﺑﺴﺘﻪ ﻧﺸﺪﻩ ﺩﺭ ﻫﻨﮕﺎﻡ
ﻫﺎ ﺑﻪ ﺧﺎﻃﺮ ﻭﻳﮋﮔﻰ ﺁﻧﻬﺎ ﻳﺎ ﺑﻪ
–
:ﺩﻻﻳﻞ ﺯﻳﺮ ﻣﻤﻜﻦ ﺍﺳﺖ ﺑﺮ ﺭﻭ ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﭘﺨﺶ ﻧﺸﻮﻧﺪ
.ﺩﻳﺴﻜﻬﺎ ﻛﺜﻴﻒ ﻳﺎ ﺩﺍﺭﺍ ﺧﺮﺍﺷﻴﺪﮔﻰ ﺑﺎﺷﻨﺪ
–
.ﺭﻃﻮﺑﺖ ﺑﺮﺭﻭی ﻟﻨﺰﻫﺎی ﺩﺍﺧﻠﯽ ﺩﺳﺘﮕﺎﻩ ﺍﻳﺠﺎﺩ ﺷﺪﻩ ﺍﺳﺖ
•
ﻫﺎی ﺧﻮﺍﻧﺪﻧﯽ ﻳﺎ ﭘﺎﻙ ﻛﺮﺩﻧﯽ ﻛﻪ ﻓﺎﻳﻠﻬﺎی ﺁﻧﻬﺎ ﺑﺎ
.ﺿﺒﻂ ﺷﺪﻩ ﺍﺳﺖ
ﺷﺮﺍﻳﻂ ﺿﺒﻂ ﻧﺎﻣﻨﺎﺳﺐ )ﺍﺯ ﺩﺳﺖ ﺭﻓﺘﻦ ﺍﻃﻼﻋﺎﺕ ﻭ
،ﻏﻴﺮﻩ( ﻳﺎ ﺷﺮﺍﻳﻂ ﺭﺳﺎﻧﻪ ﺍ )ﻟﻜﻪ ﺩﺍﺭ ﺷﺪﻥ، ﺧﺶ ﺍﻓﺘﺎﺩﻥ
ﭼﻮﻥ ﺍﻧﻌﻜﺎﺱ ﺳﻰ ﺩ ﻫﺎ ﭘﺎﻙ ﻛﺮﺩﻧﻰ ﻛﻤﺘﺮ ﺍﺯ ﺍﻧﻮﺍﻉ
ﻣﻌﻤﻮﻟﻰ ﺍﺳﺖ، ﺧﻮﺍﻧﺪﻩ ﺷﺪﻥ ﺁﻧﻬﺎ ﻣﻤﻜﻦ ﺍﺳﺖ ﺯﻣﺎﻥ
•
ﺍﺯ ﺳﻰ ﺩ ﻫﺎ ﺧﻮﺍﻧﺪﻧﻰ ﻳﺎ ﭘﺎﻙ ﻛﺮﺩﻧﻰ ﺯﻳﺮ ﺍﺳﺘﻔﺎﺩﻩ
•
ﺩﻳﺴﻚ ﻫﺎ ﺑﺎ ﭼﺴﺐ، ﺑﺮﭼﺴﺐ ﻳﺎ ﻳﻚ ﭘﻮﺷﺶ ﻣﺤﺎﻓﻆ
ﺩﻳﺴﻜﻬﺎﻳﻰ ﻛﻪ ﺑﺘﻮﺍﻥ ﺑﺎ ﭘﺮﻳﻨﺘﺮ ﺟﻮﻫﺮﺍﻓﺸﺎﻥ ﺭﻭﻳﺸﺎﻥ
ﺍﺳﺘﻔﺎﺩﻩ ﺍﺯ ﺍﻳﻦ ﺩﻳﺴﻚ ﻫﺎ ﺩﺭ ﺩﺭﺟﻪ ﺣﺮﺍﺭﺗﻬﺎی ﺑﺎﻻ ﻳﺎ
ﺭﻃﻮﺑﺖ ﺯﻳﺎﺩ ﻣﻤﻜﻦ ﺍﺳﺖ ﺑﺎﻋﺚ ﺑﺪ ﻛﺎﺭ ﻛﺮﺩﻥ ﺁﻧﻬﺎ ﺷﺪﻩ ﻳﺎ
•
–
–
ﺑﺎ
–
MP3/WMA
ﺭﺍ ﭘﺨﺶ ﻛﻨﺪ )ﺑﺪﻭﻥ ﺩﺭ
–
ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﮔﻴﺮﻧﺪﻩ ﻧﺎﻡ ﻫﺎ ﺁﻟﺒﻮﻡ ﻫﺎ، ﻫﻨﺮﭘﻴﺸﻪ ﻫﺎ )ﻣﺠﺮ
–
،٢٫٣ ،٢٫٢ ،١٫١ ،١٫٠ ﻫﺎ(، ﻭ ﺑﺮ ﭼﺴﺐ ﻫﺎ )ﻧﺴﺨﻪ
ﺭﺍ ﻣﻰ
–
WMA
ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﮔﻴﺮﻧﺪﻩ ﻣﻰ ﺗﻮﺍﻧﺪ ﻓﻘﻂ ﻣﻰ ﺗﻮﺍﻧﺪ ﻛﺎﺭﺍﻛﺘﺮﻫﺎ
–
ﻳﻚ ﺑﺎﻳﺘﻰ ﺭﺍ ﻧﺸﺎﻥ ﺩﻫﺪ. ﻛﺎﺭﺍﻛﺘﺮﻫﺎ ﺩﻳﮕﺮ ﻧﻤﻰ ﺗﻮﺍﻧﻨﺪ
•
.ﻧﻴﺴﺖ
ﻧﻬﺎﻳﯽ ﺷﺪﻩ
ﻫﺎی
ﻳﺎ
"
"
CD-RW
ﺍﮔﺮ ﺩﻳﺴﻜﻰ ﺷﺎﻣﻞ ﻫﺮ ﺩﻭ ﻓﺎﻳﻞ
CD
MP3/WMA
.ﭘﺨﺶ ﺭﺩ ﺧﻮﺍﻫﻨﺪ ﺷﺪ
ﻫﺎ ﻳﺎ
CD-RW
CD-R
.ﻋﺪﺳﻰ ﺩﺍﺧﻞ ﺩﺳﺘﮕﺎﻩ ﻛﺜﻴﻒ ﺍﺳﺖ
"Packet Write"
.ﺗﺎﺏ ﺑﺮﺩﺍﺷﺘﻦ( ﻭﺟﻮﺩ ﺩﺍﺭﺩ
.ﺑﻴﺸﺘﺮ ﻧﻴﺎﺯ ﺩﺍﺷﺘﻪ ﺑﺎﺷﺪ
.ﺑﺮ ﺭﻭ ﺳﻄﺢ ﺁﻥ
.ﺑﻪ ﺩﺳﺘﮕﺎﻩ ﺁﺳﻴﺐ ﺑﺮﺳﺎﻧﺪ
ﭘﺨﺶ ﻳﻚ ﺩﻳﺴﻚ
MP3/WMA
ﺍﻳﻦ ﺩﺳﺘﮕﺎﻩ ﮔﻴﺮﻧﺪﻩ ﻣﻰ ﺗﻮﺍﻧﺪ ﻓﺎﻳﻠﻬﺎ
ﻳﺎ
<.wma>
<.mp3>
.(ﻧﻈﺮ ﮔﺮﻓﺘﻦ ﺣﺮﻭﻑ —ﺑﻴﺸﺘﺮ/ﻛﻤﺘﺮ
ﻭ ﻓﺎﻳﻠﻬﺎ
ﻳﺎ ۴٫٢( ﺑﺮﺍ ﻓﺎﻳﻠﻬﺎ
MP3
.ﺗﻮﺍﻧﺪ ﻧﺸﺎﻥ ﺩﻫﺪ
ﺑﺪﺭﺳﺘﻰ ﻧﺸﺎﻥ ﺩﺍﺩﻩ ﺷﻮﻧﺪ
ﻓﻘﻂ ﺍﺯ
CD-R
•
•
ﻓﺎﻳﻠﻬﺎ
.ﺭﺍ ﭘﺨﺶ ﻛﻨﺪ
•
ﺑﺮﺧﻰ ﺍﺯ
•
–
–
–
CD –
ﺭﻭﺵ
–
•
•
:ﻧﻨﻤﺎﻳﻴﺪ
–
–
.ﺍﺗﻴﻜﺖ ﺯﺩ
•
ﭘﺴﻮﻧﺪ
•
•