A Broadband and ADSL forum. BroadbanterBanter

Welcome to BroadbanterBanter.

You are currently viewing as a guest which gives you limited access to view most discussions and other FREE features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today.

Go Back   Home » BroadbanterBanter forum » Newsgroup Discussions » uk.telecom.voip (UK VOIP)
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

uk.telecom.voip (UK VOIP) (uk.telecom.voip) Discussion of topics relevant to packet based voice technologies including Voice over IP (VoIP), Fax over IP (FoIP), Voice over Frame Relay (VoFR), Voice over Broadband (VoB) and Voice on the Net (VoN) as well as service providers, hardware and software for use with these technologies. Advertising is not allowed.

lower skype's sample rate ?



 
 
Thread Tools Display Modes
  #1  
Old November 9th 06, 12:44 PM posted to alt.cellular,uk.telecom.voip
[email protected]
external usenet poster
 
Posts: 1
Default lower skype's sample rate ?

lowering sample rate in windows sound recorder eliminates some of noise
so -can you make skype downsample from supposedly 16Khz and who should
be responsible for background noise suppression -cheap pc mic,
soundcard or skype?

  #2  
Old November 9th 06, 08:12 PM posted to alt.cellular,uk.telecom.voip
News Reader
external usenet poster
 
Posts: 245
Default lower skype's sample rate ?


wrote in message
oups.com...
lowering sample rate in windows sound recorder eliminates some of noise
so -can you make skype downsample from supposedly 16Khz and who should
be responsible for background noise suppression -cheap pc mic,
soundcard or skype?



Hi,

Interesting. Unless it is a "strange" scenario (older laptop [may even apply
to newer ones too]or even / much older desktop) it is unlikely to be the
soundcard or PC itself (unless with regard to this latter part [the PC
itself] you have some curious configuration going on their - odd, legacy or
malconfigured hard/software). The best candidates to be at fault are not
Skype (but I do believe they don't use the most delicate codecs [voice
compression / carriage systems]) but more likely in some rough order of
likelihood bad cabling / connections, local interference (other electrical
equipment), bad microphone, feedback / trying to operate handsfree or like a
speakerphone (this one should probably be at the front of the list - but it
is assumed that if you are trying to operate like this you are aware of the
inherent difficulties and general need to be a sound engineer almost
constantly monitoring your equipment [certainly if their are cheap parts in
the setup {read microphone}] to get this to even begin to consistently
provide anything like "reasonable" / passable audio quality; other (I will
let someone else finish this list!)... lol ... (p.s. a cheap microphone not
being used in a "handsfree" / speakerphone - open mic / feedback loop set-up
can actually provide very good or passable audio [but to be fair they are
usually pretty dire! - it is finding the "good" cheap microphone that seems
a bit like the holy grail - probably worth going "up" a couple of to the
next model [or preferably just using a genuine bt handset [note - not
necessarily the whole phone - just the handset - they tend to have some
extremely well specced and engineered microphones / speakers! {or just use
an ATA {or possibly high quality headset or other "VoIP" phone or just a
good microphone is you happy holding on to that [and using headphones -
really kind of necessary], etc.})... Someone else please feel free to carry
on in this vain / area (hard / software causes, contributors - good and bad,
etc.).

Further - generally reducing sample rates should reduce quality (markedly /
significantly). It may be that there is something working so poorly with
your current configuration that the "high fidelity" hum is almost or just is
that much worse to listen to when so clear, etc. that the muffling and
distortion of a lower sample rate actually aesthetically / acoustically
feels better, nicer, etc.


Best wishes,




News Reader



  #4  
Old November 12th 06, 12:58 PM posted to alt.cellular,uk.telecom.voip
[email protected]
external usenet poster
 
Posts: 1
Default lower skype's sample rate ?

the majority of noise seems to be 'generated' by the integrated
soundchip or power supply
so there is this real time filter software called Solicall but they do
not have the win98 version.Is the standard soundcard designed for
electret mic-i.e.has approx 5volts on mic jack?
Larry wrote:
wrote in news:1163076260.346930.151990
@i42g2000cwa.googlegroups.com:

lowering sample rate in windows sound recorder eliminates some of noise
so -can you make skype downsample from supposedly 16Khz and who should
be responsible for background noise suppression -cheap pc mic,
soundcard or skype?


Wouldn't it be easier to turn off Skype's automatic volume control and just
turn down the mic volume in the RECORD (not playback) screen of your
Windoze audio control?

On Skype, click TOOLS - OPTIONS - SOUND DEVICES and uncheck "Let Skype
adjust my sound device settings" to turn off the AGC. Then adjust the
volume yourself while listening to the mic in on your headphone until the
background noise isn't objectionable...

I do it manually on my notebook so the restaurant noises don't interfere
with the conversation. Skype's automatic volume control kept resetting the
level so my buddy in Japan could hear the guy at the next table....(c;

Skype - Gotta love it....Thanks, Ebay!


Larry
--
Halloween candy left over.....
Is there a downside?


  #5  
Old November 12th 06, 03:54 PM posted to alt.cellular,uk.telecom.voip
Larry
external usenet poster
 
Posts: 5
Default lower skype's sample rate ?

wrote in news:1163336332.998501.219740
@e3g2000cwe.googlegroups.com:

the majority of noise seems to be 'generated' by the integrated
soundchip or power supply
so there is this real time filter software called Solicall but they do
not have the win98 version.Is the standard soundcard designed for
electret mic-i.e.has approx 5volts on mic jack?


No, I've never seen DC on the mic jacks....

A good solution to this problem may be to bypass the problem and get a
Skype phone, either USB direct or one like my Linksys CIT200:
http://tinyurl.com/okyet
(to preview the monsterous Linksys URL use:
http://preview.tinyurl.com/okyet

The CIT200 has a base station that plugs into your USB port and handler
software that redirects the wav data to the base repeater on 1900 Mhz.
Mine works 2 houses away just fine, letting you carry the little handset
like you would a house phone portable, making and answering Skype calls
wherever you may be. Audio is perfect, as is the LOUD speakerphone in
the handset. Uses common AA Ni-Mh batteries and the little stand
recharges them without overcharging them just fine.

If you get a CIT200, don't boot Skype. Boot the CIT200 handler and let
it boot Skype so it configures it properly. Works great and you're not
tied down to your computer or have to wear a headset around.

I did a Google search and the street price has dropped to between 60-65
US dollars. CompuPlus has it for $US62. Retail is $99.


Larry
 




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PlusNet Share Price Falls Even Lower R.Daneel Olivaw uk.telecom.broadband (UK broadband) 15 August 18th 06 09:52 PM
[OT a bit] Lower level domain names Frank Stacey uk.telecom.broadband (UK broadband) 3 September 2nd 05 06:20 PM
Does speed increase lower Noise DB level? Dee uk.telecom.broadband (UK broadband) 18 June 19th 05 08:23 AM
Claranews - lower retention? zardoz uk.telecom.broadband (UK broadband) 2 February 16th 05 09:34 AM
Bulldog4 on LOWER HOLLOWAY exchange? Fred Finisterre uk.telecom.broadband (UK broadband) 1 August 18th 04 10:28 PM


All times are GMT +1. The time now is 12:03 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.Content Relevant URLs by vBSEO 2.4.0
Copyright 2004-2019 BroadbanterBanter.
The comments are property of their posters.