Sound Export Formats Used by Flash Flash

Although the default in Flash 5 is to export all audio as MP3, sound can also be exported in the ADPCM format. You can also decide what export format to use for audio when exporting .FLA project files to .SWF movies. The benefits and drawbacks of each format are noted in the list that follows.

Regardless of the format that you choose for exporting your sounds, you can individually specify a compression scheme for each sound by using the Flash Library. Furthermore, each format has specific options and settings.

  • ADPCM (Adaptive Differential Pulse-Code Modulation): ADPCM is an audio compression scheme that converts sound into binary information. It is primarily used for voice technologies, such as fiber-optic telephone lines, because the audio signal is compressed, enabling it to carry textual information as well. ADPCM works well, because it records only the difference between samples, and adjusts the encoding accordingly, keeping file size low.
  • MP3 (MPEG-1 Audio Layer 3): Over the last 18 months, MP3 has become the standard for digital audio distributed on the Internet. Although MP3 compression delivers excellent audio quality with small files, it’s much more processorintensive than other compressors. This means that slower computers may gasp when they encounter a high-bit-rate MP3 audio while simultaneously processing complex animations. As always, it’s wise to know your audience, and, when in doubt, to test your Flash movie with MP3 audio on slower computers. As a final note, the Flash Player only supports MP3 at versions 4 and above.
  • RAW (Raw PCM): Flash can export sound to .SWF files in a RAW format. If you use this setting Flash won’t recompress any audio. However, uncompressed sound makes very large files that would be useless for Internet-based distribution.
  • Even for those people who develop Flash content for QuickTime, it’s more effective to use either Premiere or Final Cut to add uncompressed sound to a Flash animation. The only advantage of exporting RAW sounds might be backward compatibility with earliest versions of Flash.

The compatibility of Flash’s audio import formats with various platforms shows below.

Audio import formats in flash5

Audio import formats in flash5

The compatibility of Flash’s audio export formats with various platforms shows below.

audio export formats in flash5

audio export formats in flash5



Face Book Twitter Google Plus Instagram Youtube Linkedin Myspace Pinterest Soundcloud Wikipedia

All rights reserved © 2018 Wisdom IT Services India Pvt. Ltd DMCA.com Protection Status

Flash Topics