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djfuzz 08-14-2010 07:21 PM

Bluez A2DP audio streaming
 
Dear Linux users,

I'm trying to stream audio from my iPhone 3GS iOS 4.01 to my linux computer via Bluetooth and A2DP.

My setup:
(ArchLinux)
Linux CoreNAS 2.6.34-Custom-Core #10 SMP PREEMPT Thu Aug 5 15:13:53 CEST 2010 i686 Intel(R) Atom(TM) CPU D510 @ 1.66GHz GenuineIntel GNU/Linux

Bluez 4.69

pulseaudio 0.9.21

The stream actually works, but every 1/2 seconds there is a glitch in the audio. Sometimes there are pitches in the audio. The audio is being streamed at 44.1Khz and my phone is in an acceptable range of the bluetooth enabled computer.

Pulseaudio outputs about every 5 seconds:

I: module-loopback.c: Should buffer 36012 bytes, buffered at minimum 92178 bytes
I: module-loopback.c: Old rate 45022 Hz, new rate 45046 Hz
I: module-loopback.c: Loopback overall latency is 63.33 ms + 352.51 ms + 39.51 ms = 455.35 ms

I load the loopback module as follows:

pactl load-module module-loopback source=bluez_source.00_26_B0_8D_6F_39 sink=alsa_output.usb-Native_Instruments_Audio_2_DJ_SN-v42x7kbg-00-Audio2DJ.analog-stereo rate=44100

Does anybody have a clue or direction to solve this issue? Thanks in advance!


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