The AM Forum
April 27, 2024, 07:33:07 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: AM and RF speech processor  (Read 3880 times)
0 Members and 1 Guest are viewing this topic.
IN3IEX
Member

Offline Offline

Posts: 128


« on: March 02, 2013, 11:37:33 AM »

Are RF speech processors good for AM?
Yes, I have the HV negative peak limiter, I am looking for more punch.
Any suggestion?
Logged
IN3IEX
Member

Offline Offline

Posts: 128


« Reply #1 on: March 05, 2013, 04:35:48 PM »



http://www.dxatlas.com/vshaper/

Logged
WA3VJB
Guest
« Reply #2 on: March 05, 2013, 05:28:52 PM »

I consider audio processing a potential improvement to a voice ("phone") signal, and AM is where I've used a wide variety of processors.

I have not tried any software applications such as the one you've linked.  I read through the description and it looks like they would accomplish what I would consider an improvement.

The difficult part for me would be figuring out how to "install" the computer in the audio chain so the application could have its effect.

By the time I adapt, modify and configure levels and impedances, and take steps to mitigate any RF contamination of the signal path, I might as well buy a ready-made bit of hardware suited to the job.

Logged
n1uvi
Member

Offline Offline

Posts: 47



« Reply #3 on: March 06, 2013, 01:11:41 PM »

Running on windows I have to assume there is some delay in the processing
software, no? and is limited to 4.8 KHz
Logged
KF1Z
Member

Offline Offline

Posts: 1796


Are FETs supposed to glow like that?


« Reply #4 on: March 06, 2013, 03:41:53 PM »

It would be limited by your soundcard sample rate ( up to 192khz )

And yes, there would always be latency created by processing and soundcard.
Logged

n1uvi
Member

Offline Offline

Posts: 47



« Reply #5 on: March 06, 2013, 06:04:44 PM »

Actually I was referring to the dxatlas voice shaper software
mentioned above
a second look at the specs reveal a 5.7 KHz cutoff


Logged
IN3IEX
Member

Offline Offline

Posts: 128


« Reply #6 on: March 08, 2013, 07:54:23 AM »

Eham has interesting and positive reviews of Vshaper
http://www.eham.net/reviews/detail/7406

I am going to buy a USB audio interface for proper shielding of the analog part.
http://dx.com/p/usb-to-audio-crystal-blue-sound-card-9723

I will test with interest.


Giorgio
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.034 seconds with 18 queries.