From 302045d4d559a75ee9beec94a5310b7b653ace3b Mon Sep 17 00:00:00 2001 From: drowe67 Date: Wed, 2 May 2018 21:31:43 +0000 Subject: [PATCH] test for sample clock offsets git-svn-id: https://svn.code.sf.net/p/freetel/code@3557 01035d8c-6547-0410-b346-abe4f91aad63 --- codec2-dev/README_fdmdv.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/codec2-dev/README_fdmdv.txt b/codec2-dev/README_fdmdv.txt index e70aded1..467f68b0 100644 --- a/codec2-dev/README_fdmdv.txt +++ b/codec2-dev/README_fdmdv.txt @@ -60,6 +60,13 @@ Built as part of codec2-dev, see README for build instructions. $ ./fdmdv_get_test_bits - 20000 20 | ./fdmdv_mod - - 20 | ./fdmdv_demod - - 20 | ./fdmdv_put_test_bits - 20 +7. Test with timing slips due to sample clock offset of 1000ppm: + + $ ./fdmdv_get_test_bits - 30000 | ./fdmdv_mod - - | sox -t raw -r 8000 -s -2 - -t raw -r 7990 - | ./fdmdv_demod - - 14 demod_dump.txt | ./fdmdv_put_test_bits - + + octave:98> fdmdv_demod_c("../build_linux/src/demod_dump.txt",28000) + 27552 bits 0 errors BER: 0.0000 + References ---------- -- 2.25.1