diff options
Diffstat (limited to 'util/spkmodem_decode/spkmodem-decode.c')
| -rw-r--r-- | util/spkmodem_decode/spkmodem-decode.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/util/spkmodem_decode/spkmodem-decode.c b/util/spkmodem_decode/spkmodem-decode.c index 7e199430..6c7c03df 100644 --- a/util/spkmodem_decode/spkmodem-decode.c +++ b/util/spkmodem_decode/spkmodem-decode.c @@ -482,7 +482,9 @@ auto_detect_tone(struct decoder_state *st) f = st->freq_data; if (st->freq_separator > 0 && st->freq_separator < f) f = st->freq_separator; - if (f > 0) { + if (f > 0 || /* prevent noise from corrupting tone-learning */ + st->freq_data > 2 || /* <--- stop from */ + st->freq_separator > 2) { /* learning silence if no signal */ if (f < st->freq_min) st->freq_min = f; |