2 channel encoder vs 1 channel encoder (sbc)

[aqildad-create]

I notice encoder 2 channel uncompressed byte =512 and compressed =76
while 1 channel encoder uncompressed bytes = 256 and compressed = 72

which means 512 bytes uncompressed will compressed to 76 bytes for 2 channel data and 256 to 72 for 1 channel data right ?

and at out put if i send compressed bytes to espnow or for further processing their is note huge difference right ? out put packet will only 4 byte less as compare to 2 channel out put right ?

I was expecting out put packet will also reduce half because input data to encoder is reduce from 2 channel to 1 channel .

why it is like this ?

[pschatzmann]

Maybe you should read the specification.
What do you think this depends on ?
It is quite obvous that if you provide a different input you get a different result...

[aqildad-create]

I was expecting If I get 76 bytes compressed with 2 channel then with 1 channel It will be half of 76 but i get 72 . So I personally concluded that SBC or other encoder with 2 channel is very ideally compressed just approximately 4 bytes higher not like pcm that its 2 channel is twice of single channel . The four bytes difference is may be it contain information of channel .