VIRTUAL AUDIO DEVICE - VB-AUDIO VIRTUAL CABLE

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VB-AUDIO VIRTUAL CABLE

This VB-AUDIO VIRTUAL CABLE worked extremely well during my tests with FLDIGI and MUMBLE.  It never glitched or crashed during a - 2 day -  24/7 test - with the FLdigi morse code audio tone output sending CW(from a repeating text file) using the VB-AUDIO VIRTUAL CABLE to connect to the MUMBLE input.

Very easy to setup and use.

- Here are a few screenshots of my setup -

FLdigi - VB-Audio Virtual Cable -

is selected as the FLdigi Playback soundcard

Select VB-Audio Virtual Cable for the MUMBLE INPUT

All audio travels over this VB-AUDIO VIRTUAL CABLE just like a sound card - from FLDIGI right over to the MUMBLE INPUT.  In order to hear FLdigi yourself, however, you will have to use an audio repeater application to grab the VB-AUDIO and send it to your normal sound card.   I have used several applications for this and all of them are free software and do a good job.  

SOUND TAP(bySM5VXC)

PEDALBOARD2

AUDIORESAMPLER

AUDIO REPEATER

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Here is a discussion about VB-AUDIO VIRTUAL CABLE on KVR

http://www.kvraudio.com/product/vb-cable-by-vb-audio

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VB-AUDIO VIRTUAL CABLE is listed in the windows Sound properties

as a new sound card in the PLAYBACK and RECORDING tabs

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Here is an example of another great use for the VB-AUDIO VIRTUAL CABLE.  Pictured below are two instances of EhoCW software cw keyer in iambic mode.(for more info on this setup with EhoCW see HERE)  One of the them sends cw audio to the sound card for sidetone monitoring, the other one duplicates the cw keying of the first one exactly, however, it sends its audio through the VB-AUDIO VIRTUAL CABLE to the input of mumble as pictured above.(or to the audio input of any other morse code over the internet system like iCW)

NOTE: click on picture to enlarge 

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Using VB-AUDIO CABLE to route input audio to a standalone VU METER for precision input level adjustments

http://www.darkwooddesigns.co.uk/pc2/meters.html

NOTE:  click on picture for full size view 

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"Audio Repeater application is free of charge and can be used separately, without installing the entire product"

AFTER DOWNLOADING THE TRIAL VERSION of VAC 4.12,  AND unZIPPING, you will see this:

READ THE MANUAL located in this downloaded, unzipped vac412 folder 

for further instructions on use for these Audio Repeaters

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NEW VERSION OF VB-CABLES - with many improvments

VB-CABLE Package 42 (Version 1.0.3.2)

June 25, 2013 at 6:12am

VB-CABLE (Virtual audio driver working as virtual audio cable) comes today with a new version (1.0.3.2) bringing different improvements:

 

Extended sample rate support: from 8000 Hz to 96 kHz , the new VB-CABLE can also support non-standard sample-rate (under XP, client application can configure freely audio pins) since a conversion ratio can be found (otherwise the VB-CABLE will produce silence). Basically it supports sampling rate dividable by 75, 100 or 300.

 

Configurable Internal Sample rate: To transport audio signal without conversion it will be possible by setting internal samplerate of the cable in order to fit the same samplerate of audio Pin (only for 44.1, 48, 88.2 and 96 kHz frequency).

 

Low Latency Support: the VB-CABLE will better support low latency by it's ability to detect time drift and audio drops, then will automatically re-buffer audio to quickly come back to a stable stream.

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- NEW PRODUCT FROM VB-AUDIO -  

VOICEMEETER AUDIO MIXER

HERE IS A SETUP OF VOICEMEETER MIXER FOR MORSE CODE OVER THE INTERNET

NOTE: click on picture for full size view

DESCRIPTION OF SETUP:

1.  INPUT 1,  is vb-cable A,  which is receiving audio from any cw keyboard app, and not only is able to send it to the soundcard in near zero latency for monitoring of the cw sidetone, but also sends it to audio output "B", which is a virtual sound card which connects to the input of any MORSE CODE OVER THE INTERNET PROGRAM like MUMBLE on iCW.

2.  INPUT 2, is using VB-CABLE B, which is only receiving the output of MUMBLE, and by not selecting the B circle on this input mixer,  then the audio from this 2nd input only goes to the real soundcard and not the virtual soundcard(which prevents the MUMBLE output from getting back into the MUMBLE input)

3.  INPUT 3, is the mixer's own virtual sound card, voicemeeter vaio, which receives the audio from a software cw keyer like dahdidah.  It sends the audio to BOTH output A, and output B, so that you can monitor the sidetone in near zero latency, AND send that same audio over to the voicemeeter vaio virtual sound card which connects to the input of MUMBLE or any other morse code over the internet program input.  ALSO:  this virtual input channel has BASS, MIDS, and TREBLE EQ, which when adjusted,  really helps to clean up the cw audio tones of dahdidah's output sound.

HERE IS A NICE DESCRIPTION FROM KVR

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HERE IS A SHORT VIDEO DEMO OF THE VOICEMEETER AUDIO MIXER

This video demonstrates the basic features of VB-AUDIO's VOICEMEETER AUDIO MIXER. Morse code over the internet is used to show the basic features.

HERE ARE THE LINKS TO THE FREE SOFTWARE SHOWN IN THIS VIDEO:
1. VB-AUDIO VOICEMEETER
http://vb-audio.pagesperso-orange.fr/Voicemeeter/index.htm
2. VB-AUDIO CABLES
http://vb-audio.pagesperso-orange.fr/Cable/VirtualCables.htm
3. dahdidah software cw keyer
http://echo.qsonet.com/viewtopic.php?forumid=10&topicid=785
4. FLdigi
http://www.w1hkj.com/download.html
5. MUMBLE
http://mumble.sourceforge.net/
6. iCW
https://sites.google.com/site/icwoip/

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HERE IS THE PDF USER MANUAL FOR VOICEMEETER

Voicemeeter_UserManual

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NEW VERSION OF VOICEMEETER WITH IMPROVEMENTS

Voicemeeter 1.0.0.8 is available now on www.voicemeeter.com

September 6, 2013 at 12:20pm

This last Voicemeeter version (1.0.0.8) fixes different bugs (mostly due to WASAPI Exclusive mode instability) and brings 2 new functions:

-1- ‘mono’ switch (L+R) on both physical inputs, useful to people using audio devices providing signal on a single channel (even for stereo device). This is typically the case when connecting mono microphone to audio pro devices (usually handled by ASIO driver) providing regular stereo recording device for each couple of i/o.

-2- System Settings Delay options to “synchronize” output A1 and A2. Output A1 is the main output of the audio engine and is usually in advance compared to Output A2. If you want to improve monitoring synchronization, you have to introduce a delay on Output A1 (e.g. 25ms). This can now be done in the System Settings Dialog Box.

 

However, this synchronization is usually not precise enough to connect 2 speaker system together without getting in air some “comb effect” like flange, chorus etc… You might be aware that both audio devices (A1 and A2), especially when implemented on 2 different audio boards, are playing audio according different clocks (with different time drift). So while one can play sound at 44103 Hz the other can do it as 44089 Hz and these values are changing in the time and producing different hearable strange effects…

 

Voicemeeter 1.0.0.8 should let you take advantage of WASAPI Exclusive mode, bringing better sound quality and smaller latency on last Windows Operating Systems (VISTA, WIN7, WIN8 32/64 bits).

www.voicemeeter.com / www.vb-cable.com