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John Williamson John Williamson is offline
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Default [OT] Odd speed fluctuation when streaming to car

On 18/07/2018 14:11, wrote:
"
Perhaps the machine playing discs with VBR mp3 is confusing which
ahould be constant and which is variable.


if the machine playing back the mp3 gets confused, it just rejects the
file. Playing back a VBR file using the CBR algorithm or vice versa just
outputs garbage, not a change in speed.

There is some info on the file structure he-

https://en.wikipedia.org/wiki/MP3#File_structure

MP3 files consist of "frames" which have information encoded in them to
reconstruct (more or less) a section of the original waveform. The
frames are all timecoded, and the player outputs the reconstruction of
the encoded waveform held in the data blocks using a fixed clock rate
specified in the file header.

In fact, read the whole article, and you will know a lot more than you
want to know about mp3 playback and encoding.

--
Tciao for Now!

John.