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پادکستينگ چيست؟
پادکستينگ يک روش ارائه محتوا در
اينترنت است که بر مبناي فايل هاي صوتي کار مي کند. مانند ساير روش هاي ارائه
اطلاعات به صورت فايل هاي صوتي مثل Radio Broadcasting و
Online Audio/Video streaming که بر اساس ارسال فايل هاي
صوتي کار مي کنند، روش پاد کستينگ نيز اساسا شبيه همين روش ها است ولي چند تفاوت
عمده و متمايز کننده دارد:
1- پاد کستينگ بر خلاف ساير روشهاي
ارائه محتواي صوتي که به روش Push Technology کار مي کنند،
بر اساس روش Pull Technology است. يعني، در اين روش، مصرف
کننده بر اساس تقاضاي مشخص خود، به محتواي وب دسترسي دارد و مانند راديو، مطالب به
او تحويل داده نمي شود بلکه او آنها را بر اساس نياز خود تحويل مي گيرد.
2- در اين روش، مصرف کننده محتواي مورد نظر
را توسط دستگاه هاي پخش غير از کامپيوتر استفاده مي کند و در زمان استفاده، نيازي
به دسترسي به کامپيوتر نيست. معمولا دستگاه هاي استفاده از پادکست ها بسيار کوچک و
قابل حمل است و کاربر در هر زمان و مکاني قادر به استفاده از محتواي صوتي خواهد
بود.
3- محتوا پس از دريافت از اينترنت، بدون
نياز به ارتباط با اينترنت، قابل استفاده خواهد بود در حالي که در ساير روشها، نياز
به ارتباط اينترنتي براي استفاده از محتوا است.
4- در اين روش، امکان شنيدن هر بخش از
محتوا، جلو و عقب بردن آن، شنيدن محدوده خاص از محتوا و ساير کنترل ها از طرف کاربر
ممکن است. کاربر به هر تعداد بار که بخواهد مي تواند محتوا را گوش دهد در حالي که
در راديو اينترنتي، چنين امکاني به خودي خود وجود ندارد.
5- در اين روش، نيازي به مراجعه به وب سايت
هاي مختلف براي دسترسي به انواع محتويات نيست و با تنظيم نرم افزار، کپي محتوا به
دستگاه پخش آن بطور اتوماتيک انجام شده و کاربر هميشه آخرين و جديد ترين اطلاعات را
در دستگاه پخش مختواي صوتي خود خواهد داشت.
What is a Podcast?
Below is a definition of podcasting pulled from
Wikipedia that provides you with information about podcasting, its
roots and some of the techincal aspects surrounding podcasting. The
following is provided free from editing and I take no credit for this
wonderful explanation.
Podcasting, created by former
MTV VJ
Adam Curry, is a term that was devised as a crisp way to describe
the technology used to push audio content from
websites down to consumers of that content, who typically listen to
it on their
iPod (hence the "pod") or other audio player that supports mp3 at
their convenience. The term podcasting is meant to rhyme with
broadcasting and is a derivative of the
iPod platform. While not directly associated with
Apple's iPod device or
iTunes music service, the company did contribute both the desire and
the technology for this capability. Podcasting is not unlike
time-shifted video software and devices like
TiVo, which let you watch what you want when you want by recording
and storing video, except that podcasting is used for audio and is
currently free of charge. Note, however, that this technology can be
used to push any kind of file, including software updates, pictures, and
videos.
Podcasting uses an
XML-based technology called
RSS, or Really Simple Syndication. Content publishers describe new
content in an
XML RSS file which includes dates, titles, descriptions, and links
to
MP3 files. This auto-generated file is called an RSS feed. The key
to making podcasting work with RSS is enclosures, a feature supported by
RSS 2.0.
What makes podcasting special is that it allows
individuals to publish (podcast) radioshows, that interested listeners
can subscribe to. Before podcasting you could of course record a radio
show and put it on your website, but now people can automatically
receive new shows, without having to go to a specific site and download
it from there.
Related Terms:
podcast,
podcaster,
broadcatching,
podcatching |
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Audio
& Music News
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