<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le jeu. 7 nov. 2019 03 h 40, kyle111 <<a href="mailto:purehavoc77@gmail.com">purehavoc77@gmail.com</a>> a écrit :<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Nicolas Dufresne-5 wrote<br>
> Le lun. 4 nov. 2019 15 h 40, kyle111 <<br>
<br>
> purehavoc77@<br>
<br>
> > a écrit :<br>
> <br>
>> Hello all,<br>
>><br>
>> I am using gstreamer plugin for kaldi<br>
>> <<a href="https://github.com/alumae/gst-kaldi-nnet2-online>" rel="noreferrer noreferrer" target="_blank">https://github.com/alumae/gst-kaldi-nnet2-online></a>; (speech<br>
>> recognition<br>
>> tool). This is the pipeline<br>
>> <<br>
>> <a href="https://github.com/alumae/gst-kaldi-nnet2-online/blob/master/demo/gui-demo.py" rel="noreferrer noreferrer" target="_blank">https://github.com/alumae/gst-kaldi-nnet2-online/blob/master/demo/gui-demo.py</a>><br>
>><br>
>> for kaldi plugi to do speech-to-text ( microphone input -> text<br>
>> transcript):<br>
>><br>
>> self.pulsesrc.link(self.audioconvert)<br>
>> self.audioconvert.link(self.audioresample)<br>
>> self.audioresample.link(self.asr)<br>
>> self.asr.link(self.fakesink)<br>
>><br>
>><br>
>> Now, I'd like to record the audio from microphone into .ogg file at the<br>
>> same<br>
>> time. I made the following changes to the pipeline codes:<br>
>><br>
>> # get audio from mic device<br>
>> self.pulsesrc.link(self.audioconvert1)<br>
>> self.audioconvert1.link(self.tee)<br>
>><br>
>> # save to ogg<br>
>> self.audio_queue.link(self.vorbisenc)<br>
>> self.vorbisenc.link(self.oggmux)<br>
>> self.oggmux.link(self.filesink)<br>
>><br>
>> # send to asr<br>
>> self.asr_queue.link(self.audioconvert)<br>
>> self.audioconvert.link(self.audioresample)<br>
>> self.audioresample.link(self.asr)<br>
>> self.asr.link(self.fakesink)<br>
>><br>
>> # tied up tee and queues<br>
>> self.tee.link(self.audio_queue)<br>
>> self.tee.link(self.asr_queue)<br>
>><br>
>> However, the pipeline doesn't work, There is no gst errors but audio is<br>
>> not<br>
>> saved and text doesn't come out.<br>
>> I suspect something is blocking the pipeline and I couldn't figure it<br>
>> out.<br>
>> Would like to hear suggestions !<br>
>><br>
> <br>
> Check your return values. Something must be failing. The error is returned<br>
> by GstPad.link() call directly, and may not appear on the bus.<br>
<br>
Hello Nicolas, thanks again for lending a hand.<br>
Not sure what you mean by 'check return values'. You mean I should return<br>
the above pipelin w/ gst-launch in terminal instead of python lib? I could<br>
try that out.<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">No, I simply mean that function like link() have a return value, in this case true or false, false would mean that the link failed.</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
so I found 1 interesting thing.<br>
> self.tee.link(self.audio_queue)<br>
> self.tee.link(self.asr_queue)<br>
<br>
whenever, I disable of the one of 'tee' links to queue, the other queue<br>
works (can record audio or can get speech-2-text ) but not both at the same<br>
time. <br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">If links didn't fail, check the queue level, maybe one end accumulate more then the queue capacity, preventing preroll. You may also chose to disable preroll using async property you let's say the speech to text sink.</div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"></blockquote></div></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br></blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
<br>
<br>
--<br>
Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer noreferrer" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a><br>
_______________________________________________<br>
gstreamer-devel mailing list<br>
<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a><br>
<a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a></blockquote></div></div></div>