The original file was a PNG. It stopped being a PNG when it was encoded as spectrogram of an audio file. Obviously in the bird’s memory the data is neither png nor any other machine-readable file format, but electrochemical signals.
And when recovered, the image resembles a drawing of a bird with quite a bit less detail, but also a somewhat horizontal line through the middle of it.
I’m guessing one could make about 250 drawings that can be reliably distinguished in the bird’s call, storing one byte with decent reliability, which can be boosted at scale with Reed-Solomon. The “hundreds of kilobytes of uncompressed data” claim is ridiculous, I can “make” 4 MB of data by taking a 16MP photo of a 10-byte phone number.
The original file was a PNG. It stopped being a PNG when it was encoded as spectrogram of an audio file. Obviously in the bird’s memory the data is neither png nor any other machine-readable file format, but electrochemical signals.
And when recovered, the image resembles a drawing of a bird with quite a bit less detail, but also a somewhat horizontal line through the middle of it.
I’m guessing one could make about 250 drawings that can be reliably distinguished in the bird’s call, storing one byte with decent reliability, which can be boosted at scale with Reed-Solomon. The “hundreds of kilobytes of uncompressed data” claim is ridiculous, I can “make” 4 MB of data by taking a 16MP photo of a 10-byte phone number.