Currently a number of audio properties and metadata can be inspected in Nautilus, one of them is the sample rate of the audio file, e.g. 44.1Khz.
The sample rate is generally only informative in combination with the bit-depth of the file, together they determine the resolution of the audio. The bit-depth is currently not included as a property, it would be good if it could be added.
There are two other issues relating to the audio properties panel that might be good to look into, but i don’t know if they belong in this thread or should be discussed separately:
The panel currently has no scrollbar, so if one of the fields has a lot of content (e.g. the Comment field) it will fill the panel and the rest of the properties will be unreachable.
In the case of FLAC and perhaps also other formats, which i think are technically not container formats, the panel adds an extra container field which will be a duplicate of the codec field.
It isn’t the last field, if i remove most of the text in the Comment tag so that it fits on one line, then the properties panel will show the rest of the fields below it. Example:
I’m fairly certain this isn’t the case, i will try to illustrate with a screen recording. This is with all extensions and CSS disabled. The scrolling of the popup does work in principle, but the audio properties panel won’t show any items beyond the initial 100% height of the panel: