API stands for Application Programming Interface. It is a set of rules and protocols that allows different software applications to communicate with each other. An API defines the methods and data formats that applications can use to request and exchange information, enabling them to work together efficiently.
APIs work as intermediaries between different software systems. They define how requests for information and services should be made, and how responses should be delivered. Here’s a simple analogy: think of an API as a waiter in a restaurant. The waiter (API) takes your order (request) to the kitchen (server) and then brings your food (response) back to you.
We currently have a file size limit of 10 MB. Given that most voice messages are encoded with a constant bitrate and a single channel (mono, no stereo), we can calculate the maximum duration of a file using the following equation:
Applying this equation to our 10 MB limit and a bitrate of 64 kbps (commonly used by the iPhone recorder app), we arrive at a maximum duration of approximately 21 minutes and 51 seconds. To easily calculate durations for different file sizes and bitrates, you can use our audio duration calculator.