Working with audio in dominKnow | ONE is super simple, and it is all about the MP3 format which has become a universal audio format. Most audio recording software exports to MP3 and there are many paid and free MP3 compressors to help optimize your file size.
MP3 Sample Rate and Resolution
The factors that impact MP3 file size and quality are sampling rate and sampling resolution. The sampling rate, measured in kilohertz (KHz), is set when sound is digitized. It affects the audio range by defining the highs and lows of the digitized sound. Higher sampling rates generate better quality sound and larger audio files. Some types of sound, such as narration, do not depend on high and low ranges for better quality and can withstand lower sampling rates. The typical sample rates are 22.050 kHz, 44.1 kHz, and 48 kHz and the typical resolutions are 8-bit stereo, 16-bit mono, and 16-bit stereo.
|Smaller File Size - To - Larger File Size|
|8-bit stereo||16-bit mono||16-bit stereo|
How do I determine MP3 File Size?
To help make it easier, you can use this online audio file calculator.
To determine the file size of an audio file, multiply the bit rate of the audio by its duration in seconds. You can find Stereo and Mono sizes per second, minute, and hour according to bitrate at this Audio File Size resource.