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[streetcore]

Hi Everyone,

I'm not sure if Media Center is the source of my problems, but I tried it last night and gave up after it crashed repeatedly. Afterwards, I noticed a problem with the audio on my Mac Mini and I'm going crazy trying to fix it. So I'm looking at all possible causes. I have used AppZapper to remove Media Center and rebuilt my disc permissions, but the problem below persists.

I have an HRT Music Streamer II DAC connected to my Mac Mini running OSX 10.6.8. Last night, after unsuccessfully trying Media Center, I noticed that iTunes stopped outputting any audio when the Audio Midi Output format was set to 96kHz. If I set the output to anything lower than 96kHz it played fine. It also worked fine if I switched the output to the built-in headphones at 96kHz. I'm playing 24-96 Apple Lossless files.

Today I'm getting some audio output when the Audio Midi format is set to 96kHz, but the sound is extremely distorted and staticky. Switching to 88.2kHz or lower seems to fix the problem. The same thing happens if I play a video in Safari through the DAC.

I thought it might be the DAC, but I connected it to my Macbook (it has never had Media Center installed on it) and it played fine at 24-96. I reconnected the DAC to the Mac Mini with the same usb cable, and it is still distorted at 96kHz. I'm very confused.  ?

Does anyone have any idea why this would be happening or how to fix it?

Any advice would be much appreciated. Like I said, I'm not blaming Media Center, but the timing would suggest that it may have something to do with the problem and I'm just trying to eliminate all possible causes.

Thanks.

[JimH]

Did you power cycle both the Mac and the DAC?

[streetcore]

Did you power cycle both the Mac and the DAC?

If you mean turn them on and off, then yes, several times. I shut everything off in the evenings and they were off all night. The DAC is powered by USB and I have unplugged it several times.

Thanks. 

[streetcore]

Did you power cycle both the Mac and the DAC?

Any further thoughts about this? I've tried Repair Disk and Repair Permissions, but nothing is working. The next step is to reinstall OSX.

I don't know if it helps at all, but here is part of the diagnostic reports from the Console regarding the Media Center crashes.

Process:         Media Center 19 [814]
Path:            /Applications/Media Center 19.app/Contents/MacOS/Media Center 19
Identifier:      com.jriver.MediaCenter19
Version:         19.0.55 (?)
Code Type:       X86 (Native)
Parent Process:  launchd [118]

Date/Time:       2013-10-26 23:51:41.984 -0400
OS Version:      Mac OS X 10.6.8 (10K549)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000083
Crashed Thread:  12

Thread 0:  Dispatch queue: com.apple.main-thread
0   libJRTools.dylib                 0x13a437a8 GetJRToolsDLL + 1091597
1   libJRTools.dylib                 0x13a43ee9 GetJRToolsDLL + 1093454
2   libJRTools.dylib                 0x13a43fdf GetJRToolsDLL + 1093700
3   libJRTools.dylib                 0x13916607 0x13900000 + 91655
4   libJRTools.dylib                 0x13a48fd1 GetJRToolsDLL + 1114166
5   libJRTools.dylib                 0x1399101e GetJRToolsDLL + 360579
6   libJRTools.dylib                 0x13a6f366 GetJRToolsDLL + 1270731
7   libJRTools.dylib                 0x13a6b776 GetJRToolsDLL + 1255387
8   libJRTools.dylib                 0x1397afd8 GetJRToolsDLL + 270397
9   libJRTools.dylib                 0x1397b571 GetJRToolsDLL + 271830
10  com.jriver.MediaCenter19         0x004898a6 boost::re_detail::regex_data<wchar_t, boost::regex_traits<wchar_t, boost::cpp_regex_traits<wchar_t> > >::regex_data() + 4614944
11  com.jriver.MediaCenter19         0x00493bd4 boost::re_detail::regex_data<wchar_t, boost::regex_traits<wchar_t, boost::cpp_regex_traits<wchar_t> > >::regex_data() + 4656718

Process:         Media Center 19 [814]
Path:            /Applications/Media Center 19.app/Contents/MacOS/Media Center 19
Identifier:      com.jriver.MediaCenter19
Version:         19.0.55 (?)
Code Type:       X86 (Native)
Parent Process:  launchd [118]

Date/Time:       2013-10-26 23:51:41.984 -0400
OS Version:      Mac OS X 10.6.8 (10K549)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000083
Crashed Thread:  12

Thread 0:  Dispatch queue: com.apple.main-thread
0   libJRTools.dylib                 0x13a437a8 GetJRToolsDLL + 1091597
1   libJRTools.dylib                 0x13a43ee9 GetJRToolsDLL + 1093454
2   libJRTools.dylib                 0x13a43fdf GetJRToolsDLL + 1093700
3   libJRTools.dylib                 0x13916607 0x13900000 + 91655
4   libJRTools.dylib                 0x13a48fd1 GetJRToolsDLL + 1114166
5   libJRTools.dylib                 0x1399101e GetJRToolsDLL + 360579
6   libJRTools.dylib                 0x13a6f366 GetJRToolsDLL + 1270731
7   libJRTools.dylib                 0x13a6b776 GetJRToolsDLL + 1255387
8   libJRTools.dylib                 0x1397afd8 GetJRToolsDLL + 270397
9   libJRTools.dylib                 0x1397b571 GetJRToolsDLL + 271830
10  com.jriver.MediaCenter19         0x004898a6 boost::re_detail::regex_data<wchar_t, boost::regex_traits<wchar_t, boost::cpp_regex_traits<wchar_t> > >::regex_data() + 4614944
11  com.jriver.MediaCenter19         0x00493bd4 boost::re_detail::regex_data<wchar_t, boost::regex_traits<wchar_t, boost::cpp_regex_traits<wchar_t> > >::regex_data() + 4656718