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README: fix carrier and audio sampling rate info.

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Roman Zeyde
2015-03-04 17:10:24 +02:00
parent e94fd0e2ff
commit eb6ace3cc3
1 changed files with 3 additions and 3 deletions
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6
README.rst
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@@ -31,7 +31,7 @@ This program can be used to transmit a specified file between 2 computers, using
a simple audio cable (for better SNR and higher speeds) or a simple headset,
allowing true air-gapped communication (via a speaker and a microphone).
The sender modulates an input binary data file into an 32kHz audio,
The sender modulates an input binary data file into an audio signal,
which is played to the sound card.
The receiver side records the transmitted audio,
@@ -43,10 +43,10 @@ receiving microphone.
The modem is using OFDM over an audio cable with the following parameters:
- Sampling rate: 32 kHz
- Sampling rate: 8/16/32 kHz
- Baud rate: 1 kHz
- Symbol modulation: BPSK, 4-PSK, 16-QAM ,64-QAM, 256-QAM
- Carriers: 2-11 kHz
- Carriers: 2-11 kHz (up to ten carriers)
This way, modem may achieve 80kbps bitrate = 10 kB/s (for best SNR).