To set the stage what exactly are we talking about here? Well, an “audio frame” refers to a specific chunk of audio data that gets transmitted over some sort of network (like Wi-Fi or Bluetooth) and then played back on your device. This is where the OBU comes in it’s short for “Original Buffer”, which basically means that this particular piece of audio has been stored somewhere else before being sent to you.

So how does all this work? Well, let’s say you’re listening to a song on Spotify or Apple Music (or any other streaming service). The music is actually being played back from the company’s servers, which means that it needs to be transmitted over some sort of network connection. This is where the OBU comes in each audio frame gets wrapped up into an OBU packet and sent along with all sorts of metadata (like song title, artist name, etc.) so that your device can properly decode and play back the music.

Now some specific examples to help illustrate how this works in practice. Let’s say you’re listening to a song on Spotify using Wi-Fi. The audio frames get transmitted over the network as OBU packets, which are then decoded by your device and played back through your speakers or headphones. Each OBU packet contains a specific chunk of audio data (usually around 10 milliseconds in length), along with metadata like song title, artist name, etc. This allows your device to properly decode the music and play it back at the correct speed and volume.

Another example might be using Bluetooth to listen to music on your phone while you’re out for a walk. In this case, the audio frames get transmitted over Bluetooth as OBU packets, which are then decoded by your headphones or speakers (depending on whether they support Bluetooth) and played back at the correct speed and volume.

It might seem like a lot of technical jargon, but trust us this is what makes your favorite songs sound so good on your device.