« How Transparent is too Transparent? | Main | Podcast Word Contest Extended »

How Important is Podcast File Size?
In a word? Very.

Once encoded into an MP3 (or OGG, or ACC or whatever), your show is just a file. And like any other file, it has to be transferred across the Internet in order for your listeners to listen to it. The larger the file, the longer this will take.

The size of your file is dependent on three things:
  1. The length of your show
  2. The bitrate you've encoded it at, and
  3. The sample rate you've encoded it at
In general music podcasts should be encoded at a higher rate than speech shows. The human ear is much less likely to pick up artifacts introduced by a lower encoding rate in speech than it is in music. Our JaK Attack! for instance, is encoded at 64kbps bitrate (which is still probably too high, but we have a song in each show that I want to sound decent) and 22kHz samplerate. Encoding your podcast at a bit rate or sample rate higher than required will create a file that is larger than required. Since most of us that are into podcasts have high-speed Internet, this file size issue isn't that big a deal. But every camel has its straw and this morning I found mine.

Joseph Jaffe hosts the very successful Across the Sound podcasts. I have a great deal of respect for Joseph and have even profiled him on Biz podcasting before.
I haven't listened to Across the Sound recently, but I stopped by there today to grab a recent show. The first one I tried to grab was 64MB and the second, which I'm currently downloading, is 50MB. I don't know where your limit is, but 50MB for a 50-minute speech podcast is too much for me. Once this show finishes downloading, I expect I'll see that Joseph is encoding at 128Kbps which is far too high for a speech podcast.

So, 50MB appears to be my limit. What's yours?

Edit: the show turned out to be 112kbps and 44kHz. The 44kHz is OK, but the 112kbps is too high for a speech show. Joseph could have recorded this show at 64kbps (or maybe even 44kbps) and the file would have been about 25-ishMB. Much easier to deal with.

0 Comments/Trackbacks

Comments/Trackbacks are closed for maintenance.

« How Transparent is too Transparent? | Main | Podcast Word Contest Extended »


Related Resources

Advertise Here

sponsored ads


What's this?

Prefer Email?
Subscribe below-

Current News


Bookmark this Page
Write for us
About us
Network Map

Support This Blog



Know More Media - Internet / Ecommerce / Online Business

know more media network

View Network Map

Network Feed List (OPML)

  • Business
  • AManWalksIntoAnOffice
  • AnalyzeThisBusiness
  • BIZZspotlight
  • Business Overview
  • CoreCharacter
  • ItsBadBusiness
  • KnowMoreMedia
  • PRNewsBank
  • SistersInBiz
  • Workerette

we support unitus

Unitus - Global Microfinance Accelerator



Influencer: The Power to Change Anything

BizPodcasting is a member of the Know More Media network of business related blogs.

Here are some current headlines from some of our business publications:


  • Smish: The App for Managing Your PC Apps
  • Online Alarm Clock With Rooster Crowing Sound
  • How to Beat Monday Blues: Just Psyche Yourself + 1 Dark Tip


  • Webinar: Maximizing Your Success to Get a Job in the Industry
  • Call Center Philippines: Effects of the US Crisis
  • Foreign Executives Advise Us to Change our Culture





  • Exciting New Site for Brain Based Leadership
  • Are You Old and Tired?
  • Obama’s Top 10 Business Brain Tactics