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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m trying to enable HFP on pulseaudio 6.0 using oFono and bluez 5 on a new embedded platform which doesn’t support alsa yet.<o:p></o:p></p>
<p class="MsoNormal">In order to confirm that audio is ‘played’ I record it using parecord tool. – This method worked just fine when enabled a2dp a short time ago.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">After executing oFono & pulseaudio, a call is answered on the remote device- It is seemed that the relevant profile is chosen on pulseaudio, and parecord fails to record.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When executing ‘pacmd stat’ it seems that <o:p></o:p></p>
<p class="MsoNormal"><span style="background:yellow;mso-highlight:yellow">Memory blocks allocated during the whole lifetime: 192, size: 699.9 KiB.</span><o:p></o:p></p>
<p class="MsoNormal">Is constant while pulseaudio prints to terminal the following message along the call with relatively fixed intervals:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">( 482.106| 0.013) D: [pulseaudio][modules/module-loopback.c:201 adjust_rates()] Should buffer 96 bytes, buffered at minimum 128 bytes<o:p></o:p></p>
<p class="MsoNormal">( 482.118| 0.012) D: [pulseaudio][modules/module-loopback.c:226 adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.<o:p></o:p></p>
<p class="MsoNormal">( 482.132| 0.013) D: [pulseaudio][modules/module-loopback.c:197 adjust_rates()] Loopback overall latency is 610.13 ms + 0.00 ms + 25.00 ms = 635.13 ms<o:p></o:p></p>
<p class="MsoNormal">( 482.146| 0.014) D: [pulseaudio][modules/module-loopback.c:201 adjust_rates()] Should buffer 96 bytes, buffered at minimum 0 bytes<o:p></o:p></p>
<p class="MsoNormal">( 482.159| 0.012) D: [pulseaudio][modules/module-loopback.c:226 adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.<o:p></o:p></p>
<p class="MsoNormal">( 492.134| 9.975) D: [pulseaudio][modules/module-loopback.c:197 adjust_rates()] Loopback overall latency is 610.13 ms + 8.00 ms + 0.00 ms = 618.13 ms<o:p></o:p></p>
<p class="MsoNormal">( 492.148| 0.013) D: [pulseaudio][modules/module-loopback.c:201 adjust_rates()] Should buffer 96 bytes, buffered at minimum 128 bytes<o:p></o:p></p>
<p class="MsoNormal">( 492.161| 0.012) D: [pulseaudio][modules/module-loopback.c:226 adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.<o:p></o:p></p>
<p class="MsoNormal">( 492.175| 0.013) D: [pulseaudio][modules/module-loopback.c:197 adjust_rates()] Loopback overall latency is 610.13 ms + 0.00 ms + 25.00 ms = 635.13 ms<o:p></o:p></p>
<p class="MsoNormal">( 492.189| 0.014) D: [pulseaudio][modules/module-loopback.c:201 adjust_rates()] Should buffer 96 bytes, buffered at minimum 0 bytes<o:p></o:p></p>
<p class="MsoNormal">( 492.201| 0.012) D: [pulseaudio][modules/module-loopback.c:226 adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.<o:p></o:p></p>
<p class="MsoNormal">( 502.176| 9.975) D: [pulseaudio][modules/module-loopback.c:197 adjust_rates()] Loopback overall latency is 610.13 ms + 8.00 ms + 0.00 ms = 618.13 ms<o:p></o:p></p>
<p class="MsoNormal">( 502.190| 0.013) D: [pulseaudio][modules/module-loopback.c:201 adjust_rates()] Should buffer 96 bytes, buffered at minimum 128 bytes<o:p></o:p></p>
<p class="MsoNormal">( 502.202| 0.012) D: [pulseaudio][modules/module-loopback.c:226 adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.<o:p></o:p></p>
<p class="MsoNormal">( 502.216| 0.013) D: [pulseaudio][modules/module-loopback.c:197 adjust_rates()] Loopback overall latency is 610.13 ms + 0.00 ms + 25.00 ms = 635.13 ms<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please note:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">I’m now familer with oFono at all – I simply run it as ofonod -d<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">Pacmd list output is attached while call is still ongoing. – there are 2 sources loaded and one sink.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Also, could someone explain why are there two source available? Nexus 4 and Nexus 4 monitor?<o:p></o:p></p>
<p class="MsoNormal">How can I confirm that the audio arrives at pulseaudio? By the log I would assume that the answer is positive, but according to ‘pacmd stat’ the value it seems not.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for your help,<o:p></o:p></p>
<p class="MsoNormal">Eytan.<o:p></o:p></p>
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