Variable Nc working for NC=14,16,20

git-svn-id: https://svn.code.sf.net/p/freetel/code@1185 01035d8c-6547-0410-b346-abe4f91aad63

diff --git a/codec2-dev/README_fdmdv.txt b/codec2-dev/README_fdmdv.txt
index 324b410e927ee159f2116c5f2c0d9224ed197493..81c8c4df3a82369b5969d3ad6ea83c80132ecf9a 100644 (file)
--- a/codec2-dev/README_fdmdv.txt
+++ b/codec2-dev/README_fdmdv.txt
@@ -6,8 +6,8 @@ Created March 2012
 Introduction
 ------------
 
-A 1400 bit/s Frequency Division Multiplexed Digital Voice (FDMDV) modem
-based on [1].  Used for digital audio over HF SSB.
+A 1400 bit/s (nominal) Frequency Division Multiplexed Digital Voice
+(FDMDV) modem based on [1].  Used for digital audio over HF SSB.
                      
 The FDMDV modem was first implemented in GNU Octave, then ported to C.
 Algorithm development is generally easier in Octave, but for real time
@@ -58,6 +58,10 @@ $ cd src
    For real time applications, the fdmdv.[ch] library includes functions to
    convert between 48 and 8 kHz sample rates.
 
+6. Send 20 seconds at 2000 bit/s (20 carriers) to demod and count errors:
+
+   $ ./fdmdv_get_test_bits - 20000 20 | ./fdmdv_mod - - 20 | ./fdmdv_demod - - 20 | ./fdmdv_put_test_bits - 20
+
 References
 ----------