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Integer Mode popping #22

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
What steps will reproduce the problem?
1. White, second generation EFI32bit Macbook
2. Halide Bridge
3. Integer Mode

What is the expected output? What do you see instead?
Only in integer mode the sound popping.
After I reinstalled the OS  the result remained the same.

What version of the product are you using? On what operating system?
0.7.2/ 10.6.6

Please provide any additional information below.
On new unibody (64bit?) Macbook no popping!! 

Debug attached

Original issue reported on code.google.com by lineas...@gmail.com on 14 Mar 2011 at 10:09

Attachments:

GoogleCodeExporter commented 8 years ago 
Can you try on the unibody Macbook with Audirvana launched in 32bit (and not 
64bit) mode (selection done in the Finder (Cmd+I on Audirvana)) ?

I want to know if it is a old macbook issue, or a 32bit issue.

FYI, I coded the Integer Mode with a Halide Bridge for tests. I had it hooked 
to a 64bit macbook pro unibody.

Original comment by au.damie...@gmail.com on 15 Mar 2011 at 1:36

GoogleCodeExporter commented 8 years ago 
Hi there,

I'm affraid I can't try it because that unibody Macbook was one of my costumer 
laptop.
But I could ask the guys on the net. May somebody has one in the near.

Best,

Rudolf

Comment #1 on issue 22 by au.damie...@gmail.com: Integer Mode popping
http://code.google.com/p/audirvana/issues/detail?id=22

Can you try on the unibody Macbook with Audirvana launched in 32bit (and not 
64bit) mode (selection done in the Finder (Cmd+I on Audirvana)) ?

I want to know if it is a old macbook issue, or a 32bit issue.

FYI, I coded the Integer Mode with a Halide Bridge for tests. I had it hooked 
to a 64bit macbook pro unibody.

Original comment by lineas...@gmail.com on 15 Mar 2011 at 6:10

GoogleCodeExporter commented 8 years ago 
Sorry,

I'm very busy now and I can not help to you the next days.
If you find a solution please let me know !

Regards,

r:)

Comment #1 on issue 22 by au.damie...@gmail.com: Integer Mode popping
http://code.google.com/p/audirvana/issues/detail?id=22

Can you try on the unibody Macbook with Audirvana launched in 32bit (and not 
64bit) mode (selection done in the Finder (Cmd+I on Audirvana)) ?

I want to know if it is a old macbook issue, or a 32bit issue.

FYI, I coded the Integer Mode with a Halide Bridge for tests. I had it hooked 
to a 64bit macbook pro unibody.

Original comment by lineas...@gmail.com on 16 Mar 2011 at 2:02

GoogleCodeExporter commented 8 years ago 
Same issue on my Mac mini below.
- Mac mini A1176 , Core Duo 1.83GHz , 2GB RAM
- 10.6.7 , 32bit
- audirvana 0.8.3
- audio I/F is UDIF7

My Mac book pro (Core 2 duo 2.26GHz , 10.6.7 32 bit , 8GB RAM) is no problem.
Working fine on Integer mode with same audio I/F in case mac mini.

Thanks,
Mitsuru

Original comment by mayatani...@gmail.com on 30 Apr 2011 at 8:50

GoogleCodeExporter commented 8 years ago 
Mac Mini - Core 2 Duo 1.83GHz
1GB RAM
10.6.7 - 32Bit
Audirvana 0.8d
Integer Mode - ON

I also get the Popping Noise along with the CPU Over Red Flashing warning on 
the player.

DAC is an Ayre QB-9 fed by a direct USB to USB connection

Original comment by jayson.c...@gmail.com on 4 May 2011 at 5:00

GoogleCodeExporter commented 8 years ago 
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GoogleCodeExporter commented 8 years ago 
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GoogleCodeExporter commented 8 years ago 
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GoogleCodeExporter commented 8 years ago 
I can reproduce the problem with both Audirvana and Decibel. The problem does 
not seem specific to the integer mode implementation of Audirvana.

As a workaround, you may try to connect a USB hub between the computer and the 
dac!

Original comment by timo.toi...@iki.fi on 22 May 2011 at 5:38

GoogleCodeExporter commented 8 years ago 
>>As a workaround, you may try to connect a USB hub between the computer and 
the dac!

I have tried that and confirmed no popping noise on integer mode !

- Mac mini A1176 , Core Duo 1.83GHz , 2GB RAM
- 10.6.7 , 32bit
- audirvana 0.9.1
- audio I/F is UDIF7

Sound is much better than non integer mode.
What is reason why USB hub connection does not have popping noise ??

Original comment by mayatani...@gmail.com on 22 May 2011 at 8:21

GoogleCodeExporter commented 8 years ago 
The reason is due to a flaw in Apple design. Don't know exactly where it stands 
between CoreAudio drivers and USB implementation though.

Original comment by au.damie...@gmail.com on 24 May 2011 at 11:33

GoogleCodeExporter commented 8 years ago 

I have the CPU Over and popping problem on small FLAC files (e.g. 100 MB) when 
a few other programs are running, but it becomes unlistenable when I play a 
large FLAC file (e.g. 660MB) even if nothing else is open.

What puzzles me is why the same file plays perfectly well when I drop it into 
the Vox player (using V.0.2.8 beta 2).

- iMac Core 2 Duo 2.66 GHz , 4GB RAM
- 10.6.8
- audirvana 0.9.5

Original comment by hahoad...@gmail.com on 6 Aug 2011 at 12:19