Speaking voice of host gets altered

[elias.aarnio@iki.fi]

Hi,

I found an odd thing as I tried to host a phone meeting. I was the host and my voice was altered in a way that makes it sound like I would have been boozing for a month. More precisely the pitch was lowered.

I had one participant and his voice was OK even though he was using Linux.

My setup was tested right the Dimdim test with Skype and it was OK.

OS: Windows XP SP2
Browser: Firefox 2.0.0.13

[elias.aarnio@iki.fi]

Hi,

I found out that this problem exists only with Linux users.

Also:

Sound from Windows host to Linux -> pitch lowered and a 1-2 sec delay
sound from Linux to Windows: OK
sound from Windows to Windows OK.

Strange...

Would it be possible to hide the domains of the users' email addresses on this forum? This would be quite polite as we beta users cannot choose our usernames.

[khaud01.dimdim]

Thank you for the feedback.
Can you please give me some additional information.
If you click on the green or orange button in the Audio Broadcaster - what is the value of the latency & Upload and Download bandwidth that you see?

Regards,
Uday

[elias.aarnio@iki.fi]

Hi,

Latency is between 130 and 200 msec
Up 36 - 83 kbit/s
Down 356 bit/s

I was able to replicate this problem: I had a friend in the same session about 700 kilometres away and the sound was crisp and clear in his windows PC. My Linux PC next to the Windows PC I am using as host gave me the altered sound at the same time.

[baranmatej@msn.com]

Hi :D

I would like to point out that the measurements by the applications don't seem to be correct (:o not to say that something is wrong but they might be messuring something else, like time to server and not time to server to client), I have also tested and measured the latency and the upload and download on both the attendee and the presenter. During my meeting I experience about 2.4 seconds delay :(. The download for sound is around 2.5 Kb/s and the picture transfer was 600-800 Kb/s (this varies greatly by Internet speed, there are only short burst of high data transfer on high speed connection, T1 :cool:, whyle on slower internet there would be longer and slower download).

[paul.cezanne]

This happened to me yesterday. We were trying dimdim for the first time.

Meeting was hosted on an XP with 2 OS X (Leopard 10.5.2) machines joined. My voice, on one of the macs, was pitch altered and slowed. The other mac was fine.

I could hear voices fine, they just couldn't hear me fine.

So it has nothing to do with the host, nor with Linux.

Paul

[mgarrow]

I seem to have the opposite problem. I host on a linux machine and my voice is faster and higher pitch coming out the attendee's side. Any solution to that? Unfortunatly, I don't have any additional numbers to give you at this time. Let me know what you need and how to get it and I'll pass it along..

[buttercup]

I had the same problem a couple of days ago and again yesterday while trying out dimdim for the first time. The meeting was hosted by me on a PC with Windows XP and my friend was participating on a Notebook with Linux.

My voice sounded - well, horrible is an understatement - way too low and slow. In the end we switched to Skype and continued that way.

It would be great to get a solution for that :) Thanks!!

Regards

[easternstream1]

We hosted a dimdim session with up to 16 participants.

The host was on a winXP machine. Most participants were on winXP or perhaps winVista machines. I was using Linux (Ubuntu 7.10) and the sound of the host was terribly altered. I was on a wireless connection but it was not a slow connection at all.

I used my camera to record 40 seconds of the session. My recording was interrrupted by room service at the hotel but you can clearly hear the distortion in the first and last 10 second segments of the video. The office Linux machine is on a land line.

http://www.youtube.com/watch?v=iCyYNVpHWrw

I have used dimdim with the same version of Linux (Ubuntu 7.10) at my office without any problems.

I will try to capture the numbers asked for above if I experience the problem again and I will post the numbers here.

Thanks for creating and sharing Dimdim - it is really great!

[easternstream1]

We hosted a dimdim session with up to 16 participants.

The host was on a winXP machine. Most participants were on winXP or perhaps winVista machines. I was using Linux (Ubuntu 7.10) and the sound of the host was terribly altered. I was on a wireless connection but it was not a slow connection at all.

I used my camera to record 40 seconds of the session. My recording was interrrupted by room service at the hotel but you can clearly hear the distortion in the first and last 10 second segments of the video. The office Linux machine is on a land line.

http://www.youtube.com/watch?v=iCyYNVpHWrw

I have used dimdim with the same version of Linux (Ubuntu 7.10) at my office without any problems.

I will try to capture the numbers asked for above if I experience the problem again and I will post the numbers here.

Thanks for creating and sharing Dimdim - it is really great!

I need to add that the voice distortion only happened with audio from the moderator's microphone. When others were allowed to speak their voices came over loud and clear.

[buttercup]

The pitch problem mentioned above unfortunately still persists (couldn't find anything in your issue trackers?).

- Host Ubuntu 8.04 with Ubuntu 7.10 guest: both voices ok, delay ok (approx. 1 sec.)
- Host Ubuntu 8.04 with dimdim audio/video tester: very high pitched voice
(Both calling and testing works normally on Skype)

- Host Windows XP with Ubuntu 7.10 guest: host's voice very low pitched (just like in the video from the post above) and words cut off, guest's voice high pitched.
(Both calling and testing works normally on Skype)

Host's browser: Firefox 3
Guest's browser: Firefox 2.0.0.15

Please tell me if you need any other information on that problem (where precisely can I find information about latency?).

Otherwise: good job with dimdim! If this audio problem could be fixed and recording/archiving added that would really make a cool and very useful application out of it.

Thanks!

[rockie668]

Hello,

unfortunately I have the same problem: extremely high pitched voice of presenter - clear voice of the attendee.

First I ran the dimdim-Open Source-version on my home network for testing. It was installed at an Ubuntu 7.10-laptop. Everything was fine except the altered voice of the presenter. Presenter was using the Ubuntu-laptop, attendee was using XP.

Then I installed it at my public webserver (hoping that the problem gets solved with the installation on a completely other machine): But still the same problem. At least if I host a meeting on the same laptop where I hosted it on my home-network und the attendee used the same XP-computer as it was at my local tests. The difference was the installation on the public server. So perhaps it depends on specific hardware-configuration...

Please can anyone from the dimdim-support-team give us some words and hints for solving this problem - otherwise for me the software would not be workable at all!

Otherwise you dimdim-guys did a really great job!

Thanks and bye
rockie

[jonnieo]

I had the same problem. Running Ubuntu. My voice was heard as high pitched, and the other guys voice was incredibly low-pitched...