Power Mac G5 :: Only Hissing/licking Noise From Digital Audio In?
Nov 2, 2007
I am trying to hook up the digital audio output on my cable box to the digital in on my dual 2.0 G5 running 10.4.9, 1 gig RAM. I have HDMI and component video out to monitor, but I use JBL creature speakers and sub for audio.
I have the propper cables and routing, sounds prefs set to digital in, and line out, to go to JBL creatures and first I get no sound at all. If I start AudioHijack and use same input and output settings all I can get is a hissing/clicking sort of sound. Same with using Soundsource and LineIn.
Audio MIDI Setup only shows or giveds me Built-in Audio for selections under system settings and properties for. Ausio Input and output show Master stream grayed out and I selected digital in and Line out for my sources and no change. Both ar set to 441000.0 Hz 2ch-24bit as well.
Information:
Dual 2.0 G5
Mac OS X (10.4.9)
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Nov 5, 2007
I am trying to hook up the digital audio output on my cable box to the digital in on my dual 2.0 G5 running 10.4.9, 1 gig RAM. I have HDMI and component video out to monitor, but I use JBL creature speakers and sub for audio.
I have the propper cables and routing, sounds prefs set to digital in, and line out, to go to JBL creatures and first I get no sound at all. If I start AudioHijack and use same input and output settings all I can get is a hissing/clicking sort of sound. Same with using Soundsource and LineIn.
Audio MIDI Setup only shows or giveds me Built-in Audio for selections under system settings and properties for. Ausio Input and output show Master stream grayed out and I selected digital in and Line out for my sources and no change. Both ar set to 441000.0 Hz 2ch-24bit as well.
Information:
Dual 2.0 G5
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Mar 26, 2012
I still have the same G4 Digital Audio which came used but with a clean OS, which I managed to up grade to reach the 10.4.11. Its works great and I love it. I can only imagine using a real Mac Pro 2012. The software is legacy and It will not support the QuarkExpress9 for example. So what if I found and upgraded to the 10.5.8 or the max OS my G4 can handle? Is it worth it?
Info:
G4 Digital Audio, Mac OS X (10.4)
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Jan 26, 2010
I have been noticing lately that there is a slight hissing noise on the magsafe adapter particularly when its plugged in to MBP in a quiet room.
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Dec 18, 2006
Step by step instructions for using an ATX 24-pin power supply in a Gigabit Ethernet/Digital Audio Powermac G4 (one way to do it anyway): First, know that to boot the G4s up, you MUST have at least +12V of power going to the G4's pin #22 spot (white wire) even with the computer turned off. This is called standby power (I didn't know what it meant until a few days ago). ATX power supplies generally only have a +5V SB power source which is not enough. You must use some method of getting the +12V to +28V standby power to the G4's pin #22. I will outline the method I used but there are others (ideally get a ATX power supply with +12V standby, but they are not so easy to find). I am typing this on my G4/533 with an Antec SP-500 power supply. Why do this? With an ATI Radeon 9800 256mb graphics card, three hard drives, a DVD drive, a SCSI card, a USB 2.0 card, a USB 2.0 hub with four devices attached, and a newly aquired G4/1.4 Ghz card (which meant two additional fans for cooling control), I figured the original power supply was overextended. So, here's how it can be done:
1. Make sure the ATX power supply you want to use fits your case and has the power cord hookup in the correct position (lower left corner).
2. Make sure the ATX power supply has a long enough motherboard harness, or else you will need to buy an extension (which you may want to do anyway to avoid mutilating the original power supply's wiring harness).
3. About three inches from the motherboard harness connector (same with all future cuts), cut the ATX wire #8 (gray). Tape the end of the gray wire going to the power supply. You don't use it for anything.
4. Cut wire #12 (orange).
5. Remove 1/2 inch of wire insulation from the stub of gray wire coming from pin 8 in the harness connector and from the long orange wire (that used to go to pin 12) that goes to the power supply and solder them together. Cover with heat shrink tubing (which you must put on before you solder) or electrical tape......
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Nov 11, 2009
My friend is looking into buying the new 27" iMac Core i7 to replace his PC desktop. The only thing holding him back is that he has an analog surround sound system he uses for his speakers. I am having a hard time myself finding a converter that can make his speakers work in the iMac's optical digital output port. Any products out there that will do that?
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Feb 13, 2010
I recently upgraded my macbook pro 2.16 to a western digital scorpio (WD3200BEVT). The first day I did not notice the noise at all.. Now it seems to have a clicking noise every 5-10 seconds. I also have a kernal panic today which is the first in 2 years..
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I want to add USB 2.0 to my Digital Audio PowerMac G4. Could anyone recommend a good PCI card that supports deep sleep?
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Apr 3, 2009
Looking at the "specs" page of the MacBook air, it only states analog audio out. Is there no digital audio out on the MBA via a mini toslink?
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Oct 7, 2009
Basically im turning my room into more of a home cinema, and was looking to use my laptop to play movies into a TV, and sound through a surround sound. I was simply going to use a mini toslink to optical adapter which would plug into an av reciever. I was just wondering who else does this, and what is it like? Is the audio quality okay? Can it sustain high volumes? had any troubles? what does it use, DTS or something?
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Jan 1, 2009
I have an older Yamaha receiver (RX 596) that has no optical audio in, only traditional RCA inputs. I tried using a 3.5 mm mini audio to RCA adapter that would transfer my headphone output to the CD or AUX input on the receiver. Of course the audio was crap, lots of humming and low volume level.
I also have a Canopus ADVC 110 digitizer. Can I input digital audio from the MP to the ADVC 110 with an optical to RCA converter, and then output the analog audio from the ADVC 110 with RCA cables to the RCA inputs on the Yamaha? Suggestions please for the easiest/cheapest way to get quality audio out of my MP and cleanly into my receiver.
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Feb 21, 2009
My Digital Audio Power Mac G4 is running at 800 MHz with the 1MB L3 cache but I saw on a website that's it's possible to clock it up more. I have a pretty powerful non-OEM cooling fan on the processor heatsink. I have a resistor in the R5 position so it does run at 800 MHz but I want to get it up to 867 and the site shows that it needs the "jumper set" at R5 and R1 so does that mean I can just leave the existing R5 resistor where it is and just melt a little trace of solder over the R1 to connect the two R1 ends together?
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Feb 26, 2009
I got an old G4 Digital Audio as home server / seedbox, and recently i got fed up with the horrible noise and as a first step i replaced the 120 mm fan with a new and quiet one, and it is working perfectly. However, when i replaced it i noticed that the CPU fan is now the loudest, and a computer that is on 24/7 can never be too quiet.
Can i replace the CPU fan with any fan of the right size?
Are there any requirements regarding fan speed/air throughput?
Do i have to connect the fan to the non-standard two pin connection where the original fan was connected or can i just use a normal 3 to 4 converter and connect it to the spare 4 pin power outlet?
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May 16, 2010
Just wondering if i can install OS 10.5 on my DA. I love the way it sounds, and thought it would be a good computer to keep around for mp3's. Can I run 10.5 on it, and use monitor sharing and teleport and possibly stream sound to it from my other computers to take advantage of the built in 15 watt and the isub.
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May 25, 2007
I have a couple of power mac g4s around the place and I recently swapped some of the processors around. I originally had a pair of g4 466 "digital audio" machines and a g4 400 "sawtooth". After moving them around I end up with with a 466 "digital audio" a 533 "sawtooth" and a 350 "digital audio". Does it have to do with the bus speed?
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Aug 23, 2009
I just took possession of a C2D Mini. I am unable to get digital audio to work so far. I use the same cable and receiver connections that I use on my 2009 Mini so I know they're good, but nothing. When I plug the cable in, it mutes the internal speaker, so it's detecting the audio cable. System Prefs > Audio shows digital audio, and won't let me adjust volume as I'd expect. I've tried a shared iTunes library as well as web based audio, but no luck.
Connections: DVI-HDMI converter out to a 32" 1080p Sony TV.
Digital audio with mini-toslink to receiver.
Power, LAN, Apple Keyboard. Nothing else hooked up yet.
Running 10.5.8.
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Apr 9, 2010
I'm looking to digitize my DVD library and be able to play back the files with surround sound. The actual digitization process isn't the issue here, but I want to know how I can go about playing back the files and not losing the surround sound. I'm planning on buying a new mac mini to do this and connecting a mini-toslink cable up to my receiver. What application should I be using to get the audio playback?
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Jun 15, 2012
I'm running a top spec iMac with AVID and FCP. I need to export the audio to my amp as a digital signal. How can I do this?
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Oct 20, 2010
Does the new MBA support digital audio output via the Headphone minijack or Mini DisplayPort to HDMI?
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Jun 14, 2009
I'm a recent PC to iMac convert and have hooked up my iMac to my TV receiver (DVI to HDMI connector and a Toslink cable to the audio). The issue is as soon as I plug in the audio connector the iMac speakers stop working. I'd like to leave the connector plugged in and still be able to use the iMac speakers. Of course when I play a movie on the TV I'd just mute the iMac speakers.
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Aug 28, 2009
I have the latest and greatest Mac Mini. 2.26 with 4 g of ram. I update to Snow Leopard, and now it will not recognize that it has Digital Audio Output via a mini to a Toslink connection. Heck. I am running it through a Classe' Processor with B&W 804s Speakers and it previously worked with the previous Leopard.
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Jun 1, 2010
I've been wanting to create a digital archive of all my music. I want to accomplish two things
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2. Have all of my songs easily accessible via a iPod/iPhone/etc. I have only about 150 CDs.
I'm a PC user, but am thinking about getting a Mac Book Pro. As of now, it looks like iTunes and Windows Media Player would let me accomplish #1, but since I want to get #2 as well, I've decided to use iTunes. But I have a ton of questions and am hoping to get get some answers. Right now, I just pop the CD into the drive, and get iTunes to Import the CD with the only changes to the default being that I ask it to import to WAV (which is not the default). However, I use the default WAV settings.
Am I doing the right thing with respect to importing for best quality? Why does iTunes offer additional configuration for importing to WAV files? There are settings for sampling rate and such, although I'm just using the defaults for those. Would there be any difference at all between a rip using Windows Media Player and a rip using iTunes? I have enabled error correction in the "import settings". Is there a way to tell if there were no errors, if an error was encountered and corrected, or if an uncorrectable error was encountered, while importing a CD? For many of the CDs that I've imported so far, Apple does not seem to have the artwork. Is there a recommended place to get artwork for iTunes and what would be the procedure for adding artwork? After I have imported a CD in WAV, how do I convert that to something smaller that I can then download to an iPod? Is it possible for iTunes to keep the song in multiple formats?
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May 4, 2009
I just picked up a new 1.83 core 2 duo at a price I couldn't pass up. I am going to use it as a HTPC so I have my hdmi cable, etc. All hooked up and ready to go. Last bit is the audio but I am having a bit of trouble. I bought a standard miniplug cable and assumed it would plug in just like my macbook. The problem is that the miniplug doesn't fit in the jack on the mini. I understand that the jack on the mini is a combo analog/optical jack but as you see below, it seems as though a standard miniplug y cable should work.
From the Apple support website:
The headphone / line output jack accommodates digital optical audio output, analog audio output with a 24-bit, 44.1-192 kHz D/A converter, digital audio output up to 24-bit stereo and 44.1-192 kHz sampling rate and supporting encoded digital audio output (AC3 and DTS). For analog headphone / line output a standard audio cable with 3.5mm metal plug should be used.
For digital audio, a standard toslink cable with a toslink mini-plug adapter can be used.I have done my research and some reading and can go out and buy an optical cable plus a miniplug/optical adapter but would rather go the analog route (I understand the quality difference) because I already have the cables and don't have a receiver or speakers, just my tv speakers.
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Jun 9, 2009
The new 13" MacBook Pro unveiled at WWDC makes room for its new SD card slot and FireWire 800 port in part by giving up a digital audio input port. Instead, the new model uses the same integrated mic and headphone port as the iPhone.Most MacBook users are unlikely to ever employ the combination digital and analog audio input port, which has appeared on all Mac notebooks for years. Podcasters are likely to use a USB mic like the Blue Snowball instead.However, lots of users are likely to want to use their iPhone or iPod touch combination headset/mic with their MacBook for video conferencing, and recent notebooks have added the additional pin required to support recording audio in addition to stereo headphone analog outputs and digital audio output.
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Apr 22, 2012
I would like to connect my Macbook Pro to my hometheatre via HDMI. Normally no problem with the mini display port and an HDMI adapter, but the port is already used for the 27" cinema display... Is there another adapter available that let`s me connect both, an HDMI device and the cinema display to my Macbook? I only care about the sound - I want to get digital sound to my receiver. (I am not interested in the solution via airport express and then connect via analogue audio cable - I am looking to get a digital sound signal all the way through...) about Macobook Pro: mid 2010, 17", Processor 2.53 GHz Intel Core i5, Graphics NVIDIA GeForce GT 330M 512 MB)
Info:
MacBook Pro, Mac OS X (10.7.2)
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Apr 29, 2012
So while at a gig last night with my band, we ran a video from my computer to screens on stage. The chain looked like so:
MBP -> Mini-DisplayPort -> MDP/HDMI converter -> 4-way HDMI Splitter -> LCD Monitors
Now sometime during takedown, someone just decided to unplug something from my computer without consulting me or taking any proper precautions. Now my audio is stuck on Digital Output (type digital optical out). Here's what I know, and what I've tried.I have reset the PRAM/NVRAM?I have killed coreaudio a few times with no luck?I have deleted without progress:
1) com.apple.audio.DeviceSettings.plist
2) com.apple.audio.SystemSettings.plist
3) com.apple.systemsound.plist
I have restarted my computer?I have attempted to use Audio MIDI Setup?I have googled:
1) com.apple.systemsound
2) macbook pro stuck on digital out audio no red light
3) force resetting to internal audio osx
4) force reset coreaudio osx
[code]....
Info:
MacBook Pro (15-inch Mid 2010), Mac OS X (10.6.8)
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Jun 11, 2012
My sound card seems to be meesing up. It switches back an forth from "Internal Speakers" or "Headpohones" to "Digital Output". For some reason the optical source keeps getting flipped on and is really annoying. I tried blowing out dust to see if that was causeing the comptuer's confusion, but that didn't work. Until I can make time to go to the apple store, is there anyway for me to turn off that certain connection through terminal commands or something?
Info:
MacBook Pro, Mac OS X (10.6.8)
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Jun 19, 2010
I have found that by plugging in my Apogee Duet firewire audio interface and ONLY WHEN AppleFWAudio was loaded there was a 10c CPU raise that was making my MBP (late 2008) hot!I wanted to monitor the power that was required for Duet to run and to see if the temperature rise was due to that, so:With Apogee drivers uninstalled (just to be sure its not their drivers related, which is notMBP on battery power with System Profiler opened (to monitor the mA required by the computer from System Profiler -> Power)
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Information:
Daul G5 2 Ghz
Mac OS X (10.4.10)
2 gigs memory, 250 gb hd
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Jul 29, 2008
I have a G5 twin processor which I bought just before the Intel chip model. It has all sorts of hum and noise in the audio line out when connected to my larger home music system. I have Applecare and the Apple Store tells me that they need to replace the motherboard. I'm awaiting that part to come in now. However, it sounds to me more like old fashioned transformer hum and I'm wondering if anyone else has had this vexing problem -- and if so, how it was finally resolved? I'm too old to keep hauling the heavy unit around much more.
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