I choose 2 channel, 16 bit 44100Hz (CD Quality) and this has always
worked for me but I am almost sure it can be a much much lower
quality - others with more expertise may jump in and help with
guidance here.
Use 2 channel, 16 bit, 48000 (DVD Quality) and set MMTTY to 12000 Hz
sample rate. There are some issues with sample rate in Windows and
48000/12000 is more accurate.
If that is correct then you need to go to windows sound system -
right click on the "speaker logo" in the system tray. Choose
recording devices. in the recording devices double-click the USB
codec. Then choose "advanced" tab - extreme right top of the new
window. You will then see a drop-down with "default format" - this is
where you need to choose a stereo option. Your current default is
probably a mono option.
This is critical for nearly every USB sound card. Windows tends to
see these devices as "headsets" and the input as a mono microphone.
While that is fine for the DVK sound card in MK2R+ (USB Voice CODEC),
it obviously causes problems for a stereo audio device like USB Audio
CODEC.
How does one determine which device identifier to select on the
misc tab in tnc setup?
Select the soundcard on the "Soundcard" tab in MMTTY set-up. Then
select only left or right channel on the MISC tab. If you want to
know the device ID, look at the window displayed when you click the
"Sound Card" button on the Audio Switching tab in microHAM Router.
The appropriate number will be shown in the WaveOut and waveIn boxes.
I'm half tempted to dust off an XP Pro laptop and give that a try,
Win 7 makes things very challenging.
win 7/8 are no more challenging than XP unless one cuts corners.
Further, since Windows 7/8 do not allow applications direct access
to the sound card hardware, it offers some assurance that other
applications will not change settings once everything is set-up.
73,
... Joe, W4TV
On 2014-05-19 9:49 AM, Dean St. Hill wrote:
Rich
Welcome to the twilight zone. Been there. Many times.
To see the way the sound cards are set-up within your system - click
on the Audio-switching tab of MK2R+. then click on "soundcard" - over
on the right 2/3 down the window.
Even though the MMTTY plugin works, I would suggest that it might be
a good idea to actually use the "OCX" set-up guideline as this is a
more modern driver with the possibility of also using "2tone" as an
alternative to MMTTY.
if you're setting audio from the left channel in both windows - 1st
make sure the buttons on MK2R+ are set correctly. That's the top
right section of MK2R. If that is correct then you need to go to
windows sound system - right click on the "speaker logo" in the
system tray. Choose recording devices. in the recording devices
double-click the USB codec. Then choose "advanced" tab - extreme
right top of the new window. You will then see a drop-down with
"default format" - this is where you need to choose a stereo option.
Your current default is probably a mono option.
I choose 2 channel, 16 bit 44100Hz (CD Quality) and this has always
worked for me but I am almost sure it can be a much much lower
quality - others with more expertise may jump in and help with
guidance here.
Finally after clicking the necessary "OK" etc. return to the two
MMTTY windows and just confirm that left channel has been set up for
your radio 1 and right channel for your radio 2.
Hmmm... you may also want to go back to router as well and under
audio switching tab re-confirm that the "use line out channel" has
also been set for radio one and radio 2. both may be set as "left".
you should now be good to go as far as dual receive.
let's get that going and then check the tx side of the equation.
73 and best regards,
Dean - 8P6SH
On Mon, May 19, 2014 at 7:37 AM, Richard Thorne <rthorne@rthorne.net>
wrote:
This is a cross post to Writelog and Microham.
I've been working on configuring an MK2R+ SO2R controller with a
pair of K3's and my Win 7 Pro computer.
I've been able to get SSB and CW to work properly.
I'm hung up on RTTY using MMTTY. I've downloaded the setup guide
from Microham and have setup two directories and two instances of
MMTTY, I also have the MMTTY plug in for Writelog installed.
If I select the test button for FSK on the MK2R+ ports tab for rig
1 I get diddling same goes for rig 2.
While in Writelog I've followed the setup instructions by first
selecting rig 1 and starting MMTTY from the appropriate directory,
same for rig 2. However, I can't get either to diddle.
In addition, both instances of MMTTY appear to be getting the same
audio from rig 1 from the phone jack. I've selected the right and
left audio source on the misc tab while in TNC setup.
On the sound card tab in TNC setup I've selected Reception:
Microphone (3 - USB Audio CODEC) and Transmission: Speakers (3 -
USB Audio CODEC)
How does one determine which device identifier to select on the
misc tab in tnc setup? I thought it would be 3 but I'm obviously
incorrect. I want to to use the line out on the rear of the K3's
to grab the audio since it's fixed and won't be affected by the
volume control of either K3.
The frustrating part is that I had this MK2R+ working just fine on
RTTY with one K3, adding the 2nd K3 has been a challenge. Is there
an updated setup guide specifically for Win 7?
I'm half tempted to dust off an XP Pro laptop and give that a try,
Win 7 makes things very challenging.
Thanks in advance for any assistance.
Rich - N5ZC
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