Strange audio pop thru AJA IoHD

AJA had no answers for this "out-of-the-blue" occurance:
When I minimize/hide FCP7 to use other software, I get a -4db (analog meter on a Mackie Mixer).
Thanks for any wisdom out there.
Mark Rigsby
FCP 7.0.3
Mac Pro
OS 10.6.8
2x2.93 GHz Quad-Core Intel Xeon
16 GB RAM
Media Array via SAS - Sonnet DX800Raid

Do you have other programs running when you switch out of fcp7? Are any of them audio programs? Might be the source of the problem.
Here are some additional troubleshooting tips that might be worth a shot
https://discussions.apple.com/docs/DOC-2591

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Cannot Capture Audio via AJA IoHD

I suddenly cannot capture audio via my AJA IoHD. I am using a JVC ProHD deck which connects through SDI to the IoHD and then into the Mac via FW800.
The system audio is routed to the IoHD. FCP AJA IoHD 720p 59.94 Apple ProRes 422 (HQ) easy setup is selected. Capture Clip Settings are set to capture 8 channels of audio, 48Khz 24 Bit.
I've got to be missing something. Previously captured clips have audio and playback no problem. I can see it in the meters.
Now when capturing I can hear the audio but nothing registers on the meters and once captured there is no audio on the clip.
I cannot think of what I am missing. I've been racking my brain and pounding my fists for hours. (That hasn't worked either)
Any ideas?

Yes... forgot to mention that the audio box is checked in the log clip settings pane. It behaves as if it isn't though.
I just called Apple support and they were decidedly unhelpful.

AJA IoHD Issues

Hello all, I have just received the new AJA IoHD box and wanted to know if certain problems that I am having are common or not and what I can do about them. Here is a list of my issues:
1. HDMI output to monitor does not play audio, only a high pitched digital "noise" that sounds muffled.
2. When I play a sequence in my Final Cut timeline and want to view it on my external monitor, it is delayed and the audio is out of sync. I know that there is a delay frame playback feature, but no matter what I change it to, it always seems like my audio is still a few frames out of sync. I am sending the video through HDMI and the audio is played on external speakers hooked up to the AJA.
Here is a list of my tech specs:
1. PowerMac G5 w/CPU Speed: 2.3 GHz, Memory: 2.5 GB
2. Final Cut Studio 2
3. Monitor is Insignia, model #: NS-27LCD

Yes, I have loaded them, it didn't make any difference. I also have contacted AJA and they suggested that I first try different monitors to see if the problem persisted and it did so they sent me a brand new IoHD to see if mine was faulty, but it did the same thing as well. I am going to contact them again later today and will post what they tell me.

FCPX to Compressor 4.1 to WMV (using Flip4Mac) - Audio Popping Noise

This week I exported WMVs from FCPX 10.1.3 via Compressor 4.1.
A strange 'popping noise' appeared in the final exported files that was not present in the original source clips in FCPX.
I ran through every conceivable AV quality setting in the Windows Media Quicktime Export Components to isolate the problem but to no avail.
To humour myself I used a free online WMV conversion tool which produced a WMV that didn't have the audio popping noise.
Eventually I contacted Telestream/Flip4Mac and asked if anyone else had reported the issue.
They said they had started to receive reports of similar problems occuring when exporting to WMV from Compressor.
THE SOLUTION:
Export a ProRes MOV from FCPX via Compressor
Open that MOV in Flip Player and select Export > Format > Windows Media

This is what I see.
Russ

Audio pops/clicks when changing angles in multicam clips

I am having problems with audio pops/clicks when working with angle switching in multicam clips. it always occurs when i utilize any of the "audio enhancements" features, such as the loudness or background noise removal features. Switching angles results in audible audio pops. The only way to get rid of them is to disable the audio enhancements. This occurs regardless of the audio source. Is this a known bug that is being addressed? I rely heavily on the audio editing features in my work and am hoping this will be resolved in an update soon. Thanks for any help-

Hi Brad, thanks for the reply!
That sounds like a good workaround. What I have been doing in the meantime is create a new compound clip after I finish all of my cuts, and then apply the audio edits to the new contiguous audio clip in the compound clip.
What is really strange and frustrating is that all of my new audio bugginess really began when I could no longer detach audio from my multicam clips in 10.0.9... After doing many searches here, it seems that in this most recent update of FCPX this is no longer a 'feature'... I don't know why they changed this, but in older updates of FCPX you could detach audio from original clips, compound clips, or multicam clips with no problems. I would routinely create and edit all of the angle cuts in my multicam clips in the timeline, and then if I wanted to, be able to detach the audio and do more edits if needed. Thankfully I can still apply edits to compound audio clips, but it would sure be nice if I could just correct/enhance audio without ugly-sounding artifacts in multicam edits. Thanks again-

OS 10.4.10 Update Causing Audio Popping (AND HUM) Issues:

OS 10.4.10 Update Causing Audio Popping (AND HUM) Issues:
The problem on my Intel Mac mini with external Klipsch speakers (two mid-range/high and a subwoofer) is REAL obvious as the system emits a hum like a Spinal Tap amplifier turned up to #11 when 10.4.10 powers down the audio circuitry
Then, if I play a song in iTunes, it first pops and the hum disappears right before playing.
Quite annoying. I restored the mini from a recent backup to 10.4.9. Problem gone.
I'm glad I test updates on the mini before applying them to my Intel iMac 24. I guess I'll just hide & watch what happens before doing any more updates.
Here's what I sent to Apple tech support:
Guys/Gals (OS X Engineers):
Concerning the Snap, Crackle Pop Audio problem in the 10.4.10 update:
Please. Just do the right thing and fix the audio.
There is no need to power cycle the audio subsystem to save .0005 amps on the laptop line.
And then to make your Mac mini/iMac/other desktop users have to put up with it when using AC power is ridiculous.
Put the audio subsystem back like it was in 10.4.9 and let the laptop battery freaks looking for mini-amp savings get a "work-a-round".
Crikey!
iMac 2.16 Ghz Intel Core 2 Duo 2GB RAM Mac OS X (10.4.9) 20 Years of Microsoft-Induced Grey Hair
Mac Mini 1.83 Ghz Intel Core Duo 1GB RAM Mac OS X (10.4.9) 20 Years of Microsoft-Induced Grey Hair

Libby,
Backup is unable to make a restorable by Disk Utility backup. You can restore pieces of the software as outlined in my FAQ about backing up user data:
http://www.macmaps.com/backup.html
But to be able to restore a backup with Disk Utility, you need a cloning utility to have made the backup.
I suggest starting a new thread here, where someone else could help you out better:
http://discussions.apple.com/forum.jspa?forumID=752&start=0
First off, you'll get a wider audience who may be able to solve your problem. Secondly, responses to you won't confuse the original poster with solutions that don't apply to them. And thirdly, you'll know for certain whether or not a response applies to you.

Fade effect causes audio popping

Hello,
I have had a recent issue with iMovie which is only getting worse. Whenever I use the video effect of either fade in or fade out, there is a popping sound which get written into the audio track.
I have tried various fixes but nothing seems to work. It started out as a few quiet audio pops, but now is completely warping the audio. Any ideas?
Basically I have had to go through the painstaking process of extracting the audio and then fixing it in Garageband. This works, but is tedious and takes about 4 times as long. Since I have quite a few clips to process in this way, I need to fix this issue. I really appreciate any help that others could provide with this.

If anyone else has this problem - you fix it by making sure you pan the audio to the center, not left or right.

Strange window popped up.

Strange window popped up and I have no idea how i launched it. It could not be closed unless iOS restarted. What is this window for?

Hey K. Hashimoto,
What you are seeing is the zoom accessibility feature on your iPhone. Take a look in Settings > General > Accessibility and look at the Zoom part to find out the features and how to use.
Use Accessibility features in iOS
https://support.apple.com/en-us/HT204390
Take care,
-Norm G.

10.4.10 Audio Popping Issues: Information Check with Internal Speakers

For people with internal speakers, or those without subwoofers: Please read all the way to the bottom to find a test that will determine whether you are also having audio problems, even if you can't hear pops.
We've had a lot of discussion about audio popping due to 10.4.10, and the evidence indicates that the audio circuitry is going to sleep to conserve power, even on AC-only computers like the iMac, Mac Mini, and (at least one) Mac Pro. Some people claim to not have this problem, but I'm wondering if they just aren't noticing it.
Having external speakers with a subwoofer, set to high amplification, are key to obvious detection of the problem. Let the sound subsystem go idle for 30+ seconds (wait a minute with no audio, just to be safe), turn up your external speakers really loud, and cause the computer to make a sound. You should hear a burst before the sound plays. If you repeat the sound, you won't hear the burst. This is the sound of the audio circuitry powering on, and the speakers are amplifying it.
About 30 seconds after the sound finishes playing, if you leave the volume of your speakers turned way up, you should hear a "pop" as the circuitry is powered off. Then, playing another sound will recreate the burst.
I haven't been able to hear these sounds with internal speakers, either on the Mini or iMac. But the problem still exists, and it is detectable... if you know what you are looking for.
The burst of the audio circuitry turning on also causes a delay in the audio. The delay is a noticeable fraction of a second, an it can easily be detected if you have a repeatable source of sound. I like Terminal.app, because I use that application all day, every day. Here is how you can check to see if you are also subject to the audio problems:
1. Start Terminal.app (in the /Applications/Utilities directory).
2. Wait one minute for the audio circuitry to shut down.
3. Without typing anything else, very quickly strike and release the Backspace key.
4. If you pressed the key all the way, the program should have caused a beep. However, if the audio circuitry goes to sleep, the beep should occur after you have moved your hand off the key. This is because the circuitry takes time to power itself on before playing the sound.
5. Now, quickly strike the Backspace key again. You should notice that the sound is produced immediately as you hit the key, without the delay you just witnessed.
6. Strike the Backspace key repeatedly, to confirm that there is no audio delay. Do this about once every second or two. If you press the key too rapidly, not all of the presses will produce sounds... this behavior is not related to the issue we are testing.
7. Wait another minute for the audio circuitry to shut down, and strike the Backspace key once more. You should again observe a delay between your strike and the sound production.
If you witness delays like this, your audio circuitry is also going to sleep, and you are having the same audio problems as the rest of us. However, either because you are using internal speakers, or because your external speakers don't have the appropriate response, you aren't hearing the same bursts and pops as the rest of us.
Please try this test, and report here. I want to build a list of people who previously couldn't hear the sounds, but still have the delay. This might give us a better picture of the scope of the problem.

Re: 10.4.10 Audio Popping Issues: Information Check with Internal Speakers
Your analysis of what is happening is right on.
The problem on my Intel Mac mini with external Klipsch speakers (two mid-range/high and a subwoofer) is REAL obvious as the system emits a hum like a Spinal Tap amplifier turned up to #11 when 10.4.10 powers down the audio circuitry
Then, if I play a song in iTunes, it first pops and the hum disappears right before playing.
Quite annoying.
Here's what I sent to Apple tech support:
Guys/Gals (OS X Engineers):
Concerning the Snap, Crackle Pop Audio problem in the 10.4.10 update:
Please. Just do the right thing and fix the audio.
There is no need to power cycle the audio subsystem to save .0005 amps on your laptops.
And then to make your Mac mini/iMac/other desktop users have to put up with it when using AC power is ridiculous.
Put the audio subsystem back like it was in 10.4.9 and let the laptop battery freaks looking for mini-amp savings get a "work-a-round".
Crikey!
Mac Mini 1.83 Ghz Intel Core Duo 1GB RAM Mac OS X (10.4.9) 20 Years of Microsoft-Induced Grey Hair

Distracting audio popping in T61, and no idea why!

Hey,
My laptop had been giving me trouble, so I recently did a restore to factory settings and started from scratch. Now, everything works pretty much perfectly, except the small audio popping issues I had before seem way, way worse now. I used a DPC latency checker and found out that mine is hovering around 3300 or so, with frequent spikes to 78000 (the popping is extremely noticable then), which from all my research is way too high.
Is there any easy fix for this?
Message Edited by Babylonian on 06-22-2009 01:02 AM

Yea at first I thought maybe after it was on for a While you could see something but it Sounds Like your Display is Shot) I was going to Ask how old it was but i found at the bottom of your post this phone is a Replacement phone Yikes somebody else's trouble that was sent in to Verizon then Sent on to you.
That's why I'm not in Favor of the there Replacement Phones Program) You may get a Phone that will go to the End of your Contract and then again you may get a piece of I can't say with out get Moderated..
Well what i would DW is I would take it to your Local Verizon and see if they can Replace it for ya ) I know it'll be for the same possible Model but they may Step you up a Model.. You Just have to Check with the Store an see Hopefully they'll Warrant it for the Display Good Luck.. b33

Audio pops/drop-outs with AU bandpass

Even after I render and do a audio mixdown, I occassionally get audio pops or drop-outs (one channel or completely) of audio files to which I've applied the AU bandpass filter. Is there a way to solve this?

Make shure you sample rates and buffer sizes match. Check AMS or Sound in pref.> after application launch, sometimes it will flip automatically. Master then Slave i think > you might need more usb power

Audio pops in PPRO CC 2014

I am getting PAINFUL audio pop in Ppro with MP3 audio tracks. As I move the CTI, it will max out and blow my eardrums to pieces. Any idea as to what would cause this?
-gl

I made a post about this a little over a year ago it looks like (Loud Pop On Moving of Playhead). I've found that adding a simple single-band compressor effect to all my audio prevents the popping. Only trouble is, any compression effect (apart from Multiband (Legacy)) makes Premiere crash when trying to queue a sequence to Media Encoder (though you can still drag and drop from one app to the other).
I guess all we can do is keep filing bug reports.

Audio Pops in Windows XP

I was wondering if anyone knows why my macbook would be having audio pops in windows xp. It seems like its only when something is loading in windows. If anyone knows a solution please let me know, thank you.

Did you check the audio level at the control panel > sound and audio device?
How you run the XP, parallel or Boot Camp?
Also post this thread on boot camp forum for they might have better answer for you:
http://discussions.apple.com/forum.jspa?forumID=1165
Good Luck.

[solved] Strange Audio Issue

I am experiencing a strange audio issue with my Intel-HDA ICH7:
# lspci -v
00:1b.0 Class 0403: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
Subsystem: Hewlett-Packard Company Unknown device 30a5
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at d2400000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access>
when I installed Arch linux the first time a mounth ago on this computer, I had a sound problem that was solved in a very strange way.
Everything worked fine until a week or so (I believe from Alsa 1.0.12). Now sometimes sound works and sometimes it doesn't. For example sometime I boot the computer and have no sound, then I reboot it without doing anything, and then sound works.
I have tried messing with the modprobe.conf:
# /etc/modprobe.conf (for v2.6 kernels)
# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF version 1.0.11 ---
#alias snd-card-0 snd-hda-intel
#alias sound-slot-0 snd-hda-intel
# --- END: Generated by ALSACONF, do not edit. ---
#options snd-hda-intel model=F1734
options snd-hda-intel model=z71v
options snd-hda-intel position_fix=1
but it was useless. If I put back the modules in rc.conf everything is worse: sound doesn't work at all.
A diff between lsmod in a "working boot" and a "without sound boot" showed that the same modules where in kernel memory.
A diff between dmesg showed this difference:
< hda_intel: azx_get_response timeout, switching to single_cmd mode...
was present in the not working boot. This line is absent in a working boot dmesg.
The only way to make the sound card working everytime is to remove the snd* modules load from the boot sequence and load the modules "by hand" after the login.
Any ideas?
PS : If something is unclear due to my poor English please tell my and I'll try to explain it better.

phrakture wrote:snd-hda-intel is screwed up - on my thinkpad I had to go into the bios and enable the modem for sound to work. Oddly enough, the modem was off by default.
Also, mine has no PCM listed, I need to use "front" as my PCM level... not to mention the UI is way off with 'tpb' (if you have a thinkpad)
Yes it's not an Arch Linux related problem: I had problems with Debian (Etch and Sid based distros like ubuntu) too (but there I had no modprobe issue on the init sequence. Maybe is a problem of shared IRQs, but I have to study the existing documentation as I am a newbie). The difference is that Arch is simple enought for me to try something like modprobing "by hand" in the init sequence. PCM seems to work, however the volume is very low and I have found no way to make the mic work. Under Mepis I was able to make it work only if I plugged it in windows xp and then reboot into Linux. But I can't try it with Arch as I have erased the windows partition...
I will try the new kernel, study the documentation and then report. Hoping this will be usefull to others too.

When you sent your Macbook for service, did Apple fix the audio pop issue?

I'm experiencing the intermittent audio "pop" problem in my Santa Rose Macbook running 10.5.1. (There are numerous posts on this topic in this forum and elsewhere.)
I'm wondering if this can remedied by a a trip to the Apple repair shop.
For those who have experienced this problem, and who have sent their Macbooks back for repair -- was Apple able to solve the issue? Or is it unlikely to be remedied hardware, and instead be patched with a firmware fix via software update?

bump. anyone?
audio pop thump external speakers hiss crackle leopard

Strange audio pop thru AJA IoHD

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