[WriteLog] Audio Recording

Ric Plummer ricp at charter.net
Sun Feb 29 23:07:53 EST 2004


Just a follow up note:
The Icom 756 line has a fised line out AND it does have transmit audio.
I did have to attenuate it so I could run a reasonable gain control on the
line is.
BUT it does work great !! And now that WL have the VU meters it the sound
control panel
it all is very smooth to set up.
Ric KV1W

----- Original Message -----
From: "Eric Scace K3NA" <eric at k3na.org>
To: "Steve GW4BLE" <GW4BLE at btconnect.com>; <writelog at contesting.com>
Sent: Sunday, February 29, 2004 21:34
Subject: RE: [WriteLog] Audio Recording


> According to my understanding:
>
> 1.  Recording transmit audio:
>
>    There are several approaches.
>
>    a) Record the audio from your headphone jack; turn on the monitor
function.  The drawback to this approach is that the audio
> level may not match the full dynamic range of your soundboard's encoder,
and will vary depending on where you set the radio's AF
> gain.
>
>    b) Record from the line output.  The advantage of this approach is that
the level is fixed, independent of headphone volume (AF
> gain).  The drawback to this approach is that many (but not all) radios do
not supply a copy of the transmit sidetone/audio to the
> line out (a vestige from the days when line in/out were used mostly for
phone patching).  One work around is to build a little box,
> triggered by the PTT/amp key signal, that switches over to the headphones
(and monitor signal) when transmitting.
>
> 2.  No mechanism to snip out the QSO that you were listening to.  You can
edit the sound file with any internet editor, once you
> know the relative start time (minutes from the start of the file).  Check
the StartTimes files that WriteLog creates to know which
> file contains the QSO, and the timestamp of the start of the file.
Tedious but it works.
>
> -- Eric K3NA
>
> [Note:  If you work K3NA in ARRL SSB, he is not in MD!]
>
> -----Original Message-----
> From: writelog-bounces at contesting.com
> [mailto:writelog-bounces at contesting.com]On Behalf Of Steve GW4BLE
> Sent: 2004 February 29 14:05
> To: writelog at contesting.com
> Subject: [WriteLog] Audio Recording
>
>
> I know queries like this come up every so often, but having checked the
archives I am still not really sure on the definitive answer
> and also there's another query that I believe hasn't been addressed
before.  So here goes....
>
> 1 - Recording of transmitted audio, in addition to received audio. Second
part, i.e. received audio I have no problem with, but
> *how* can I record (and later playback) my own signal in addition to the
station I am working?
>
> Radios here are 2 x FT1000MP with the W5XD/K5DJ Multi-keyer. PC (HP
Pavilion t461) has on-board sound (Realtek AC'97) for audio
> review, and a separate SB Live! 5.1 Digital dedicated for radio use using
linein/out connections to each radio and Heil HC4
> connected direct to the mic socket on the SB card.
>
> 2 - When clicking on "play audio from this QSO" in the log menu, is it
possible to save the selected wav file for that contact to
> some other directory?  It would be nice to keep an archive of selected DX
contacts somewhere rather than have to open WL each time.
> I appreciate the *whole* wav file (which could be several Mbits) could be
played through Windows media player (or w.h.y.) but how
> about the small section for the selected QSO  - is that possible?
>
> If you are able to help with these queries please post direct to the group
as I am sure others would be interested too.
>
>
> 73
>
> Steve
> GW4BLE
>
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>
>
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