I Hear U

Telephony

Source (link to git-repo or to original if based on someone elses unmodified work): Add the source-code for this project on opencode.net

3
5.7
Available as/for: -
Description:

IHU is a Voice over IP (VoIP) application for Linux, that creates an audio stream between two computers easily and with the minimal traffic on the network.

The main features are:

* Peer-to-Peer: the communication takes place directly between the computers (UDP and TCP both supported), without need of session protocols (such as SIP or H323) or other servers in the middle.

* Good audio performance: IHU was born to give the best audio performance, low latency above all. For this purpose IHU is compatible with ALSA, now the default Linux sound architecture, but also with JACK, a low latency sound server. For the audio compression, IHU uses Speex, a codec optimized for speech (and completely free and open source).

* Crypted stream: you have also the possibility to Encrypt/Decrypt the stream using a fast hybrid cryptographic system (RSA + Blowfish)

* Command-line support: the Qt GUI is not strictly necessary, you can run also a textual IHU from command-line (for example if you need to run the program on remote computers).

* Free and Open Source: IHU is totally free and distributed under the terms of GNU General Public License.

The possibilities of use of IHU are endless, for example you can use it like a phone to talk with your friends all around the world, or at home/work, to talk between computers in the LAN (talkback), etc.
Last changelog:

13 years ago

# IHU v. 0.6.0

- new feature: multiple calls now allowed (full conference not yet supported)
- feature improved: AGC moved from player to recorder (with mixer support)
- feature improved: sound input level added to GUI
- feature improved: TX threshold and AGC volume converted to dB
- feature improved: file player/converter in a standalone dialog
- feature improved: .spx file converter now faster
- feature improved: config file entirely reviewed, now it's possible to specify the file
- feature improved: now it's possibile to save the passphrase in the config
- feature improved: some improvements in the tray icons
- feature removed: JACK driver for output has been disabled
- bug fix: no more problems with XRUN handling for ALSA player
- source code: IHU architecture totally reviewed, GUI made independent from Phone

58 comments
Comments/Ratings

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bugmenot1234

11 years ago

Development seems to have stopped :(
Hopefully someone can take over this fantastic app?!

Anyway there are not much apps in the "telephony" group, most of them not actuall and even twinkle is not based on Qt4 yet,... It's annoying!!!

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Smartnow

12 years ago

Yours Programm is very good. I like it. It is now in Gentoo Overlays VoIP.

Could You implement higher Ports, such as 65000, please?

And perhaps a Choise, for Mono or Stereo Speex Codecs.

http://www.speex.org/comparison/

A better Security, I am paranoic, Choise for a Random Keys with constant
Lenghts (bits) greater as 448, 4096 the Best.

Capabillity to write the Names in the full UTF-8 Letter, such as
čćžšđ, чћжшђ don't work
öä$ü works

Thanks smartnow

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Smartnow

12 years ago

And could You add a Speaker device for ringing, please. As Twinkle.

Regards Smartnow

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linux3114a

13 years ago

ihu_0.6.0-1.lotus_i386.deb
at
http://home.scarlet.be/raoul.linux/

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dunkelstern

13 years ago

Add dcop support and some kind of event handling or at least knotify integration and it will be perfect... No, just let me add one thing... Zeroconf integration would be great too, so you could fill the dropdown box with possible participants automatically.

Are there any plans to add webcam video? If you would plan that I would be the happiest person ever :)

I don't know how complicated it would be to port this to windows but it's worth a look. This could get an alternative to skype if done right (of course that would be a longer journey then :) )

I'll look into the code and check what has to be done to get it to compile on windows, I'll contact you if I know more ;)

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C

mtrotta

13 years ago

Thank you for your suggestions. I found interesting DCOP and Zeroconf integration.
Instead I think that I won't add webcam support for the moment, maybe in the future.

Please contact me if you're interested in the port to Windows!

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MayC23

13 years ago

Why dcop? The future is dbus as even kde4 will use it and not dcop anymore.

Nice would be to use phonon. AFAIK phonon will work on windows too

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Kalidarn

13 years ago

Yeah i heard there's a windows effort to port KDE libraries etc to windows.

We want to avoid KDE3 dependencies like DCOP thanks. Eventually KDE3 won't be supported anymore.

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linux3114a

13 years ago

http://moking.free.fr/raoul/SuSE10.3/ihu-0.5.7-1.lotus.i586.rpm

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pejakm

13 years ago

Hi! This sounds like a damn nice app! Can it be compiled on windows platform? If it can, can someone do that and put the link to the binary? Thanks!

I want to give it to my friend who uses Windows, to try it out...

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C

mtrotta

13 years ago

Hi, unfortunately IHU binaries are available only for Linux at the moment. But it's possible to try IHU on Windows using the free VMWare Player. You can find the link to the HOWTO with the instrucions here:

http://ihu.sourceforge.net/news.html

HELP WANTED! If somebody would like to port IHU on Windows, any help is absolutely welcome! Please contact me.

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pejakm

13 years ago

I'm sorry, If I understand correctly, IHU is based on qt4, right? If it's true, than one should be able to compile it on win, am I right?

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C

mtrotta

13 years ago

Yes, QT are available on Windows. But IHU uses also the ALSA library, which doesn't exist on Windows (afaik). So you should adapt the audio code that use ALSA to use the audio driver of Windows. I'm not a Windows developer so I can't tell further more, but It shouldn't be a big deal anyway.

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ralesk

13 years ago

Out of curiosity (and somewhat related), what are your thoughts about the SDL library? It’s a bit more portable than plain old ALSA, and I’d guess and since it’s used for games and other stuff, it should be quite low latency.

I personally never had much luck with getting Speex to sound good — on the other hand I messed around with GSM 6.10 once and it seemed really decent. The library is also free for any use as long as the copyright and disclaimer notice is retained intact. (http://kbs.cs.tu-berlin.de/~jutta/toast.html)

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C

mtrotta

13 years ago

I didn't know SDL, it could be a good idea. I'll have a look, thanks for the suggestion.
Concerning the codec, I know that speex is not the best for sound quality but I'd prefer to continue to use Speex because it's totally open and free, and it's growing.

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ralesk

13 years ago

Yeah, I realised almost immediately that I was a bit ambiguous, sorry about that.

My comment about Speex was just a personal programming experience — I hadn’t yet had the opportunity to try your software so I can’t write any feedback on its sound quality.

GSM 6.10 was just a suggestion as a possible alternative, in case you’d like to add support for other codecs, as it too is free (as said, the only thing required seems to be attribution, other than that, you do what you want with it — which is even more liberal than GPL).

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pejakm

13 years ago

Oh yes, forgot about that. Nevermind then...
Thanks

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sebastianwww

13 years ago

Dear Mr Trotta:

Is there any possibility to port ihu for the maemo platform so that it would be available for Nokia 770 device, which runs on a Debian system over an armel chip?

Thanks in advance.

Regards,
Sebastian.

PD: I would help in any way as much as possible.

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kumarnarain

13 years ago

Hai
Iam a beginner..I installed ihu and when I tried running it I got the following error message at the terminal
"ihu: error while loading shared libraries: libSoundTouch.so.0: cannot open shared object file: No such file or directory"

How can this be fixed?

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C

mtrotta

13 years ago

You need to install the soundtouch libraries (http://www.surina.net/soundtouch/). I think you can find ready packages for your distribution, but you can also compile the sources.

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GuSArg

14 years ago

Its only possible with Two computers? or i could use more? Because i need to connect a total a 11 Workstation for a class room.

Thanks

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C

mtrotta

14 years ago

No, IHU works only for two computers. Maybe you can try some tricks to connect the 11 computers with IHU, for example using 11 instances of IHU and call each computer on each different one. But it's not so practical.

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meyerm

14 years ago

Hi,

are there any techniques included to establish a connection between two NATed computers like STUN etc.?

Thank you!
M

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C

mtrotta

14 years ago

The answer is no. At the moment IHU avoids the use of external servers, even if this reduces its usability.
Anyway in the future I may add STUN support as optional feature.

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roger-z

14 years ago

And what if only one computer is NATed? Does it work then?

And another question - are you going to prepare a version of IHU for Windows?

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13 years ago

# IHU v. 0.6.0

- new feature: multiple calls now allowed (full conference not yet supported)
- feature improved: AGC moved from player to recorder (with mixer support)
- feature improved: sound input level added to GUI
- feature improved: TX threshold and AGC volume converted to dB
- feature improved: file player/converter in a standalone dialog
- feature improved: .spx file converter now faster
- feature improved: config file entirely reviewed, now it's possible to specify the file
- feature improved: now it's possibile to save the passphrase in the config
- feature improved: some improvements in the tray icons
- feature removed: JACK driver for output has been disabled
- bug fix: no more problems with XRUN handling for ALSA player
- source code: IHU architecture totally reviewed, GUI made independent from Phone

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Oct 10 2011
bugmenot1234
Mar 29 2009
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Mar 23 2009
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updated Jan 30 2008
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