Intermittent Garbage on Soundflower Bus

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What steps will reproduce the problem?

1. Set up Audio MIDI set up so that the default output is Soundflower (2ch)
2. Create an aggregate device that combines my Apogee Ensemble and Soundflower 
(2ch)
3. Set up a Logic project that uses the aggregate sound device; monitor ch 9/10 
(Soundflower 
2ch) and route them to the headphone outs or other outs of the Ensemble
4.  Play my iTunes music library. iTunes sends audio out the "default" output.

What is the expected output? What do you see instead?

I expect to be able to route iTunes into Logic and hear it or route it further. 
This is true, but what 
happens is that if I let it play for a while, the audio will after a while 
start to become demolished 
(filled with buzzing, distortion, and echoing, like trashed buffers). It will 
"evolve" over the course 
of a few minutes, getting worse, and then after a while will return to normal 
audio.

The reason I'm doing this is not just to listen to my iTunes through the 
Ensemble, it is to let me 
use SoundFlower and Logic to mix my iTunes library plus multiple live sources 
(mics, guitar, etc.) 
 for sending up to a live feed on ustream.

I have experimented with growing Logic's buffer sizes, but that doesn't help.

What version of the product are you using? On what operating system?

MacOS 10.5.6, 2x2.8 GHz Quad-Core Intel Xeon, 8 GB memory, SoundFlower 1.3.1

Please provide any additional information below.

I will try to see if I can reproduce this using something besides Logic, like 
Audio Hijack Pro. I 
have a recording of the problem if anyone wants to see it, but I don't have to 
look at the 
waveforms to know what I will see -- it is some kind of a buffering problem, 
with the net result 
being that data is repeated until it gets to have such a big delay that you 
hear a half-second 
echo. And a lot of broken-off waveforms that result in square-wave sounding 
clipping.

Original issue reported on code.google.com by paulrpo...@gmail.com on 20 Apr 2009 at 6:05

• Merged into: #24

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Note that this is for what is now considered an older version. I am testing the 
newer version; if I can't reproduce 
the problem I'll note that.

Original comment by paulrpo...@gmail.com on 23 Apr 2009 at 3:55

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OK, I am using SoundFlower 1.4.3 and I am seeing different behavior (even 
worse) on two different machines.

On my Mac Pro, running 10.5.6, if I'm using SoundFlower to route audio from 
iTunes to my Apogee Ensemble, 
after two to three minutes of audio, SoundFlower audio output stalls on what 
sounds like a single buffer. In 
other words, it degenerates to a constant buzzing or (if the audio was very 
low) silence. If I use 
SoundflowerBed to change the output selection to OFF and then back to my 
Ensemble, it always recovers.

I'm seeing this same behavior running on a MacBook using 10.5.7 with no 
external audio hardware, just 
routing system audio through Soundflower to the system output. What triggers it 
on that laptop is plugging in 
headphones to the headphone jack to switch from the laptop speakers to 
headphones. When the audio comes 
up on the headphones it is frozen (buzzing) until I go through the same 
procedure, switching Soundflower 
output to off and then back to Built-in output.

This seems like a very serious show-stopper, making Soundflower completely 
unusable on my Mac for what I 
want to do with it.

Original comment by paulrpo...@gmail.com on 17 May 2009 at 4:12

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Original comment by 74obje...@gmail.com on 6 Oct 2009 at 10:22

• Changed state: Duplicate

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same problem here.
mac book pro running os x 10.5.8 and soundflowerbed v1.4.4
audio interface: m-audio profire 2626

my default system out is set to soundflower 2ch. in bias peak, i set output to
profire. i set input to pickup soundflower 2ch. after recording (or just 
monitoring)
for a few minutes, i get the distortion as described above. i even creaed a 
simple
max device the takes input from soundflower and just routes it to my profire. i 
get
the same results unfortunately.

Original comment by dp.filte...@gmail.com on 13 Jan 2010 at 9:52

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yea right...still nobody fixed this? 
i'm on a macbook 10.5.8 intel, having the jitter after a couple of minutes or 
so...
soundflower has great interface but impossible to use with jitters...going back 
to jack i guess...

Original comment by goldfish...@gmail.com on 14 Feb 2011 at 8:23