This is largely a placeholder MSC to describe how audio waveforms/events could work in an extensible events world.
Proposals like MSC3245 - Voice messages using extensible events would make best use of this.
A waveform property is added to the m.audio event definition as an array of numbers to denote
amplitudes for the audio file. The array should have no less than 30 elements and no more than 120.
Clients might have to resample for their use case, and are encouraged to only use the information
as placeholder until the real waveform can be determined.
Due to floats not being allowed in events, the waveform should be rescaled to a range of integers between zero and 1024, inclusive. This should allow for enough resolution to be maintained for preview purposes. Values larger/smaller than those should be clamped.
The waveform is optional.
TBD
TBD
TBD
TBD (not currently needed)