Number 1, I think it depends in large measure on the quality of the
playback. I listened first on my stereo speakers on my computer and I
varied the bass as I listened. I had to lower the bass response on the
Orion bit, and increase it on the Kenwood part to make either sound like
"normal" AM audio. I agree with Carl, it would seem that the Kenwood bit
is too good for a 3KHz passband.
Number 2, There is clearly a difference between the two recordings, so maybe
someone in Tennessee has a tin ear? Hey...poking a little fun
here....nothing serious.
I think both recordings when played back on a good sound reproduction system
sound excellent. The "muddy" factor, I suppose is simply the bass response
on a particular play back system.
Larry, N0XB
----- Original Message -----
From: "Dennis Jones" <k6rcl@cox.net>
To: "Ron Castro" <ronc@sonic.net>; "Discussion of Ten-Tec Equipment"
<tentec@contesting.com>
Cc: "Dennis Jones" <k6rcl@cox.net>
Sent: Tuesday, January 23, 2007 7:05 PM
Subject: Re: [TenTec] AM Receiver distortion in Orion II
> Ron,
>
> Sounds good to me, in fact quite good.
>
> DJ K6RCL
>
>
> On Jan 23, 2007, at 2:54 PM, Ron Castro wrote:
>
>> One of the items on my "wish list" for the Orion II is to fix the
>> AM receive audio, which sounds to me like a problem in the DSP code
>> that causes distortion and 'muddy' sound. It's most noticeable
>> during selective fades that cause a serious clipping effect. Last
>> night, I made an MP3 of a local AM radio station comparing the O2
>> to a TS-870, and sent it to TT service. This morning, TT said they
>> couldn't hear any difference between the two receivers. Is it my
>> ears or what? The link to the clip is below. The O2 is the first
>> 60 seconds and the 870 is the second 60 seconds. Bandwidth on the
>> O2 is 6 kHz, while the 870 is 3 kHz, although as you'll hear, it
>> sounds just the opposite!
>>
>> http://n6ie.com/OrionII_vs_870.mp3
>>
>> Can anyone besides me hear the difference?
>>
>> Ron N6IE
>> www.N6IE.com
>> (Formerly N6AHA)
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>
> Dennis Jones
> k6rcl@cox.net
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|