[Ham-Mac] Stuck Audio Input Level slider using the USB Audio CODEC input

[Tim McLeod]

I observed the same thing as Dick with the SL USB but do not believe it is a
problem.  My old setup used an iMic adapter along with the original SL
interface.  The slider worked because the iMic adapter has a software
adjustable input attenuator.

The SL USB does not have a software adjustable input attenuator, so the
control is disabled.  Just use the level controls on the SL face plate and
everything works fine.

73 - Tim


on 1/19/08 4:50 PM, Dick Kriss at aa5vu at sbcglobal.net wrote:

> Thanks for pointing out what's going on with the stuck slider.  I wonder if
> this is unique to my SL USB or if all USB cause the slider to snap to the
> max attenuation.
> 
> Dick AA5VU
> 
> 
> On 1/19/08 1:37 PM, "wb6rse1 at mac.com" <wb6rse1 at mac.com> wrote:
> 
>> See cocoaModem's manual under "Audio Input Level" showing a figure
>> (Figure 4) of the slider:
>> 
>> "Be aware that not all audio devices will have 24 dB worth of range
>> that can be adjusted through software. In most cases, cocoaModem can
>> tell what the audio device¹s attenuation range is and the slider will
>> ³snap² back to the maximum attenuation available if you exceed this
>> maximum."
>> 
>> 
>>> On Jan 19, 2008, at 10:18 AM, Dick Kriss wrote:
>>> 
>>> The problem is my cocoaModem "Audio Input Level" slider is stuck at
>>> -24 db
>>> and when I try to move it toward the 0 db setting, it jumps back to
>>> -24 db.
>>> At first I though I had a bad or corrupted w7ay.cocoaModem
>>> 2.0.plist file so
>>> I trashed it and started over clean.  As expected the Audio Input
>>> Level
>>> slider was at the 0 db default setting. I then went to the CONFIG
>>> panel and
>>> clicked Activate and selected the USB Audio CODEC and the slider
>>> jumped over
>>> the the -24 db setting.  At this point I lost control of the slider.
>>> 
>>> At this point I don't know if there is a problem with my settings
>>> or the USB
>>> Audio CODEC interface.  The slider works FB with other input
>>> options so you
>>> will not see this issue with the SL-1 or SL-1+ interface units.
>>> 
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> 
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