[opus] Opus File Format

Ian Malone ibmalone at gmail.com
Tue Feb 26 09:33:10 PST 2013

On 26 February 2013 12:50, Simon G4ELI/HB9DRV <simon at sdr-radio.com> wrote:

>> I don't know whether Opus can continually vary frequency (though I don't think so, it's very rare for
>> audio formats), but communicating that is obviously something the codec would need to specify.

> Sorry - I wasn't clear, what I would like to do with any future Opus file format is have a tag such as Title which can be continually updated throughout the recording, not fixed at the start. Obviously I could design my own storage format for this, but it always makes sense to 'go with the flow' so to speak.
> In my case these are radio recordings, so I would add my own custom tag 'Radio Frequency' and update this as the user changes the radio's frequency.

Ah, I completely misunderstood that example then. I've never tried it,
but Kate should be able to do that as metadata:
http://wiki.xiph.org/Kate#Metadata particularly you can apply it to a
time range, which is probably what you want when tagging something
like radio frequency rather than an instantaneous label.


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