Posted by Derrick on October 15, 2009 under Video Streaming and Compression | 
If you need to encode MP3 audio files on the Mac then using tools such as Episode and Sorenson Squeeze are obviously good choices for this. There are MP3 encoding presets already built into both applications. If you’re trying to save money a free tool that you can use is called Audacity. This tool was first recommended to me by Brian Alves, one of the world’s leading podcasters and host of The DV Show. If you have AIFF source files Audacity can encode them. To use Audacity for encoding MP3 files you’ll need to download and install the Audacity application and the LAME mp3 encoder available on the Audacity website under downloads.
Posted by Derrick on September 27, 2009 under Video Streaming and Compression |
Working with MPEG-1 muxed media files can be tricky but it can be easier using a tool like MPEG Streamclip. Every Multimedia Specialist should have this tool available.
A muxed MPEG-1 file is a MPEG-1 file that has the video and audio tracks mixed together. You can run into problems encoding these types of files using some compression applications. So it’s a good idea to demux the MPEG-1 file. Once you compress the video you can re-assemble the audio and video in Quicktime Pro. This will give you a seperate audio file. If you don’t have QuickTime Pro available then you can assemble your files in Final Cut Express or Final Cut Pro then export to QuickTime. It’s not the best work flow but it will work.
To demux your MPEG-1 file open your file in MPEG Streamclip and navigate to Demux to AIFF via the File pull-down menu. You don’t have to bother with Demuxing the video because when you compress your MPEG-1 muxed file in many cases you will get a video only file.
Tags: AIFF, applications, audio, compress, Compression, demux, Demuxing, encoding, files, media, mixed, MPEG, MPEG-1, muxed, Streamclip, tracks, Video
