Sound fails in 10.2 |
September, 06, 2002 12:10 AM |
jcgrant3 |
Ryan, The sound problem on my 7500 with Sonnet G3 500...I don't think it's mainly related to whether ATA drives/cards are present or not. Whenever I have anything up that uses sound, such as iTunes, and start another process while it's playing (such as a web browser), it stutters during startup and sometimes stops altogether, even though iTunes is still up and, apparently, "running," that is acting as if it's running, but no sound. I can quit iTunes, relaunch the finder, whatever I want, but sound will not start back up. It has no sound for any application from that point, Quicktime, Text to Speech, anything. The only way to bring sound back up is to do a total restart. Now, I'm no programmer, but I think that something, a kext file (????) or something has changed in such a way as to cause this behavior. Before, when I had problems under 10.1.5 with sound and an ATA drive, it would stutter and such, but sound wouldn't totally fail. This makes me think the present problem is something new. What, I have no idea. By the way, I've run 10.2 release System on both an ATA drive and an internal SCSI, but I get the same behavior on both. My songs are stored on a SCSI drive as well. For my ATA I use the Sonnet 100 ATA card, with the updated firmware. I really love 10.2 on my machine, except for this problem. Do you know if there is any way, say from Terminal, to "restart the Sound Server" similar to the way I would in Linux? I'm not afraid of the command line, but this system is different enough from Debian Linux, that I can't seem to locate the equivalent of its Sound Server. That would be better than a total restart and would keep things okay till we can trace out the problem. Thanks, J. Grant |
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RE: Sound fails in 10.2 |
September, 15, 2002 6:29 PM |
mjoecups358 |
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I would like to add I am seeing audio problems under 10.2 in my powerwave G4/800 with NO ATA card or disks. Itunes plays audio, then stutters and eventually fails, meanwhile I can hear a SCSI drive churning as the stuttering starts and continuing as the stuttering continues, occasionally the SCSI drive stops churning, and then the audio also clears... The exact same thing happens with the DVD player and it's audio. I have a sneaking suspicion this will go away with 10.2.1, so I'm going to hold out till then, as far as hardware troubleshooting. |
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RE: Sound fails in 10.2 |
September, 15, 2002 3:21 PM |
SlyTovak |
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I had a problem similar to this last week. I did manage to solve it though, atleast on my machine. I only have two PCI cards at the moment, but what I did was move the Radeon 7000 to A1, and put the Acard 133 in slot D2. This way, each is on its own bus, and it is the Radeon that has to share bandwidth with all of the io from the motherboard. I also interleaved all the Ram for a bit more throughput. Im not entirely sure which of these actually solved the problem, but I can now play quicktime movies off both the internal SCSI bus and on the IDE drives off of the Acard. This problem was present in 10.1.5 on my machine, but it was much worse after the 10.2 upgrade. Daystar (9500 Mobo) G3/400 576MB Ram (interleaved) ATi Radeon 7000 - A1 Acard ATA133 - D2 OSX 10.2 |
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RE: Sound fails in 10.2 |
September, 15, 2002 12:51 PM |
wcswcs |
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Hey Guys - my $.02 with a case report: 1. PPC 7500 with a 500 MHz G3 NewerTech upgrade 2. OS X 10.1-10.1.5 sound was fine when I was operating SCSI only 3. purcahsed and installed Sonnet ATA card and operate IDE exclusively now. I did not connect it with this event, as I upgraded to 10.1.5 at about the same time. Anyhow, same problems as others have reported: -upon bootup, sound is fine if it is the only process -can become choppy if ANY other I/O -after problems set in, iTunes stays at 0.00 when trying to play -10.2 has similar behavior to 10.1.5 in my experience 4. I tried running "KeepSoundAwake" which "... sits in the background and plays a "silent sound" every 20 seconds, thereby preventing the audio hardware from sleeping. " This is a problem on Powerbooks, and I thought maybe would help here. 5. Has anybody observed a condition under which it does NOT fail? For instance, under 10.1.5 it didn't seem to quit in iTunes unless the system slept. Now, under 10.2 I have observed it fail even in the middle of playing songs while the system was otherwise active. |
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RE: Sound fails in 10.2 |
September, 15, 2002 10:17 AM |
aldrin |
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As I've described elsewhere in the forum, I have a different experience with sound in 10.2 on my unsupported Mac: Power Mac 9500 upgraded with: - Sonnet G4/400MHz - Sonnet Tempo ATA100: connects 2 IDE hard disks on primary channel - Sonnet Tango FW/USB: connect to USB mouse & HP LaserJet 1200 - ATI Rage 128 - 288MB RAM - 2GB internal SCSI hard disk - standard ADB keyboard & mouse - Microsoft IntelliPoint Optical Explorer mouse (via USB) When I'd first tried 10.2 on one of the IDE hard disks (fresh format & install), I didn't get any sound almost all of the time ... when I do get it, it is only for a brief moment just after login, when I click on the alert sounds in System Preferences. Tried playing a radio channel in iTunes, but not only is there no sound, the "Elapsed Time" will remain at 0:00 even though the play button is activated! Same thing happens when I play an MP3 file in iTunes or even in QuickTime. Then, keeping the rest of the configuration the same, I'd tried 10.2 on tne 2GB internal SCSI hard disk (also freshly formatted). This time, even though the system alerts & user interface sound effects will be mostly silent, I can successfully listen to radio channels, MP3 music & videos., although the sound will drop if there's another active process ... all I need to do to get the sound back is to stop/pause and play/resume playback. This leads me to suspect it is indeed due to trying to play sound files from the IDE hard disk ... I believe that with 10.2 on the IDE hard disk, the sound data may be temporarily stored on the IDE hard disk before being processed & played. |
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RE: Sound fails in 10.2 |
September, 07, 2002 5:44 PM |
OSXGuru |
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It sounds like you are correct about the problem not relating to the ATA disk as such. I'm not sure what it is, then. Unfortunately, I'm not very familiar with the sound architecture in Mac OS X, so I'm not sure what to suggest about "restarting" things and the like. I do want to figure some of these things out, but haven't had time to dig into the sound question. |
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