2009/7/10 Olivier Crête <olivier.cr...@collabora.co.uk>:
> On Fri, 2009-07-10 at 00:39 +0300, George Kiagiadakis wrote:
>> First, I have tried doing calls between my client (on the desktop) and google
>> talk (on the laptop). This scenario mostly works, I get correct audio on both
>> sides, but after a while (~30 seconds or so) the audio stream from my client
>> stops being delivered to gtalk and instead I get a continuous noise (always
>> the same) on gtalk.
>>
>> Second, I have tried doing calls between my client and empathy. In this case,
>> although they connect fine, I don't get any audio on either side, instead I
>> get
>> a "tak tak tak" noise with exactly 1 Hz frequency. This noise seems to be
>> coming from FsConference itself. I'll try to explain what makes me believe
>> that: I have a gstreamer pipeline that looks like this:
>>
>> audiosrc -> volume -> FsConference -> liveadder -> audioresample -> volume ->
>> audiosink
>>
>> (audiosrc and audiosink can be anything. I have tried so far autoaudio{src,
>> sink}, alsa{src,sink}, oss{src, sink} and audiotestsrc.)
>>
>> Empathy has a similar one that looks like this:
>>
>> gconfaudiosrc -> volume -> level -> FsConference -> liveadder ->
>> audioresample
>> -> volume -> gconfaudiosink
>>
>> The only practical difference is the "level" element, which apparently feeds
>> a
>> small visualization widget on the empathy window that shows the level of the
>> audio coming from the microphone.
>>
>> Both sides receive this "tak" noise. Now, if I mute one side by setting the
>> volume on the "volume" element of the input to 0, the other side stops
>> getting
>> the noise. However, increasing the volume doesn't make any significant
>> difference. An important detail is that the visualization widget on empathy
>> reacts to the microphone and is not synchronized with the noise that I get on
>> the other side. So, that leads me to the conclusion that the FsConference
>> element somehow gets correct audio from the input and transforms it into this
>> noise. Thus, if it gets no audio, there is no noise.
>>
>> The same exactly happens when I am trying to make calls with my client on
>> both
>> sides. However, calls with empathy on both sides work fine. This makes me
>> wonder what can be wrong with my client. Both my client and empathy are very
>> similar applications, both using telepathy, telepathy-farsight, gstreamer and
>> even (almost) the same pipeline.
>>
>> Does anybody have any clue? What can be wrong?
>
> This is strange, all that FsRtpConference does to audio is to
> encode/decode it. Which codec is used?I have no idea actually. I am attaching the console log of my client from a call between my client and empathy. I hope it makes sense. Is there anything else I could do to get more debugging information? Best regards, George
kcall-farsight-log
Description: Binary data
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