Audio Mixer Tab - microHAM MK2R Manual

NOTE: The Audio Mixer Tab is not present in Windows Vista or 7 due to operating system limitations.
Windows Vista and 7 take exclusive control of the sound card and do not allow any application to control
the overall level or the select/mute switches for any audio "endpoint" (input or output). The Windows
2000 and Windows XP Hardware Abstraction Layer (HAL) that the Audio Mixer tab requires is not
present in Vista and Windows 7. Because that capability is missing, Router cannot perform the audio
control functions. Audio levels must be set using a combination of the Windows Volume Mixer and the
Sound Control Panel.
The sound card configuration depends on the capability of your application software. Some software can directly
control the sound mixer, some can not. Router's Audio Mixer tab provides exceptional control over the sound
cards and stores all level settings in the presets for each program (or configuration).
The Audio Mixer tab is divided to two parts, the left half is for control of SC1 or USB Voice Codec (VOICE
modes), the right half is for SC2 or USB Audio CODEC (DIGITAL modes).
You must select the names of the sound cards that are connected to MK2R or MK2R+ in the Audio Mixer. For
MK2R+ choose USB Voice CODEC at the left side and USB Audio CODEC at the right side. For MK2R select
the system name of the sound card connected to SC1 jacks (Voice) in the left side and the system name of the
sound card connected to the SC2 jacks (digital) in the right side.
MK2R+ selects the correct channels automatically, they must be selected manually for MK2R.
Channel assignments for SC1 (Voice):
REC MIC – Select Microphone channel
TX MIC – Select Microphone channel
TX VOICE – Select Wave channel
If these selections are not available, you may need to replace the sound card (or select another sound
card in your system). Most basic sound cards, including those in many laptops, provide the resources
needed for SC1.
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AUDIO MIXER TAB

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