[App_rpt-users] Distorted audio in app_rpt/Allstar

[Bryan D. Boyle]

DSP takes a significant amount of horsepower.  Ya don't get something for nothing; reading a hardware status bit or two is a lot less intensive at the expense of additional wiring and configuration statements in the config files than decoding the stream, deriving the signals, etc.  any overhead in doing so is bound to have an effect on other streams going on at that time.

and we humans don't process breaks in audio as we do with visual perceptions.

--
Bryan
Sent from my iPhone 5...small
keyboard, big fingers...please
forgive misspellings...



On Sep 11, 2013, at 13:44, "George Csahanin" <george at dyb.com> wrote:

> I have that exact problem if I use DSP, moved to COS and PTT on DB25 and it stops. Did this in every case I tried, though the only platform I used was a D945 or D201 Intel board.
>  
> Ran 1GB of RAM and CPU is whatever a D945 is.
>  
> GeorgeC
> W2DB
> 2360
>  
>  
> From: Kevin Custer
> Sent: Wednesday, September 11, 2013 11:45 AM
> To: Andreas Pleschutznig
> Cc: app_rpt-users at ohnosec.org
> Subject: Re: [App_rpt-users] Distorted audio in app_rpt/Allstar
>  
> On 9/11/2013 12:20 PM, Andreas Pleschutznig wrote:
>>  
>>  
>> Best I can describe the effect is that the audio is time sliced in 20ms packets and every other packet is missing, left out. and it does not happen when audio is especially loud or quiet. Sometimes it happens on the time announcements, which are absolutely perfect 99% of the time. 
> 
> Sounds to me like a computer with too little RAM or too little CPU horsepower.
> 
> When you run the top command, is it using swap memory?  If so, that's bad...and you need more RAM.
> 
> Kevin
> 
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