Hi,
I would like to request a feature to be added to DSDPlus that displays the 49 info bits of the voice codewords next to each BS Voice packet (BS VOICE, BS VC1, BS VC2, BS VC3, BS VC4, BS VC5, and BS VC6). Ideally this should be displayed when using the verbosity -v3 or greater argument.
The display should be expanded to 7 bytes using the following calculations:
The 49 info bits are extracted from the u_0, u_1, u_3, and u_4 vectors
The following example is the silence voice codeword for and unencrypted transmission:
u_0 is 12 bits long 111110000000
u_1 is 12 bits long 000110101001
u_2 is 11 bits long 10011111100
u_3 is 14 bits long 01100111000001
Finally combine the above 49 bits of u_0 through u_3 to 7 bytes padding the last 7 bits with 0 and display in hex:
11111000 00000001 10101001 10011111 10001100 11100000 10000000
which equals in hex F8 01 A9 9F 8C E0 80 - which is the silence unencrypted voice frame for AMBE.
thanks!
I would like to request a feature to be added to DSDPlus that displays the 49 info bits of the voice codewords next to each BS Voice packet (BS VOICE, BS VC1, BS VC2, BS VC3, BS VC4, BS VC5, and BS VC6). Ideally this should be displayed when using the verbosity -v3 or greater argument.
The display should be expanded to 7 bytes using the following calculations:
The 49 info bits are extracted from the u_0, u_1, u_3, and u_4 vectors
The following example is the silence voice codeword for and unencrypted transmission:
u_0 is 12 bits long 111110000000
u_1 is 12 bits long 000110101001
u_2 is 11 bits long 10011111100
u_3 is 14 bits long 01100111000001
Finally combine the above 49 bits of u_0 through u_3 to 7 bytes padding the last 7 bits with 0 and display in hex:
11111000 00000001 10101001 10011111 10001100 11100000 10000000
which equals in hex F8 01 A9 9F 8C E0 80 - which is the silence unencrypted voice frame for AMBE.
thanks!
Last edited:
