Sound Check Audio Quality

Hi,
I have many CD's ripped in apple lossless encoding stored on my Apple TV. I use the optical output for optimum audio quality. Does anyone know how Sound Check actually works and does it affect the sound quality.
Thanks,
Paul.

No idea how it works, but I assume it reduces dynamic range.
Whatever it does it sounds awful.
AC

Similar Messages

"Disable" Sound Check

There has been much discussion about the pros and cons of Sound Check, and some excellent details are provided about how it works and how difficult a process it is to standardize volume. Generally, I'm happy with the feature with one exception: live concerts, especially with songs that segue, like a Dead or Zappa concert. If I want to listen to the contiguous show, sometimes there are significant swings in volume between tracks. Yes, joining tracks is one option, but that creates very long "songs." I could also go track by track and manually set each song's volume to some standard, but my ear ain't that good. So my questions:
(1) After tracks have been imported and Sound Checked, is there a way to reset a certain group of songs to the original, non-varying, un-Sound Checked volume level?
(2) If not, can I re-import the concerts and somehow maintain the consistent volume level for the tracks that make up each show? Would I have to turn off Sound Check in perpetuity to do this?
Thanks for any suggestions
Dell Inspiron 8200 Windows XP

Sound Check works well on an iPod when listening through the headphones. Works on all iPods, as far as I know.
Some iPods have their 'Line Out' audio (Dock Connector) affected by Sound Check, others do not.
If may be iPod 'Generational' differences &/or Firmware differences - I do not know. The only way to determine if the Sound Check feature works via the Dock is to perform some simple tests (if you have the appropriate connections).
I determined that my 2Gen iPod mini with Firmware v1.3 does not pass Sound Checked audio via the Dock. Makes it more work to manually adjust the volume in my car (via a Direct Interface) or my home speakers.
See this thread for more information: http://discussions.apple.com/message.jspa?messageID=1683429#1683429

RTP Audio quality problems

Hi all, I am trying to beat a problem and am running out of idea: poor audio quality. Here is the gis of the problem:
- Audio source: microphone on PC
- RTP format: G711 uLaw
- Audio quality is excellent when the two parties of a conversation are both PC running my JMF app
- Audio quality is poor when one party uses my JMF app (on PC), and the other a 3rd party IP phone. The audio played out on the PC (originated from the IP phone) is clear, the audio played out on the IP phone is scratchy and appeared to have a cyclical ticking sound.
- Audio quality between two IP phones is excellent.
Hypotheses:
- Codec mismatch - This can be ruled out since the audio sent from the IP phone to the PC sounded perfectly clear.
- Poor sound capture on the PC - This can be ruled out since the audio quality between two PC's was perfect.
- Data transmission rate problem - Possible: the IP phone ran an RTOS which generated an RTP packet more or less every 20ms. The IP phone has little to no jitter buffer. The RTP packets generated from the PC were bursty (I couldn't get a very accurate timer going in Java), JMF has a good jitter buffering algorithm (for incoming packets).
Has anyone else run into similar problem? Any suggestion as to ways to verify the cause of the problem, I am thinking of capturing the RTP stream using a packet sniffer and then play it back using a third party tool to rule out poor audio quality in the capturing phase on the PC.

Hello Hai.Vu!
I would like to use a pc-microphone (not usb and not microphone of my webcam). You've wrote that the quality were excellent.
Really? How you doing that?
I'm using the AVTRansmit2 code which I've found on this plattform.
Thanks for feedback!
Nahya

Who is suppose to Fix the Poor Streaming Audio quality?

Just a quick question
Who is suppose to fix the bad sounding streaming audio quality?
This this something Google / Verizon / Motorola will fix or is this left for the developers to fix?
I can not stand telling my phone not to update but I cant said the poor audio quality more!!!!
Someone fix this please

I installed 2.2 on the 1st Droid replacement they gave me- no apps, wallpapers, etc were installed since the phone was updated to 2.2 straight out of the box. The battery level was almost full before install. Upon installing 2.2, the battery could not hold a charge within 10 minutes. On the 2nd Droid replacement, I took the same battery that had indicated a 5% battery level and put it into the new replacement (which was on 2.1), and it immediately read as 70%.
I agree that some apps may cause a conflict, however in my case Froyo was clearly the culprit....so to assume that all these problems are self-inflicted is **bleep**.
johnM356 wrote:
wfooffroad wrote:
Its amazing how so many of the same phones get the same update and each phone takes the update differently causing different problems for each phone.
Exactly, and since the phones are physically identical, that tells me all these problems being reported are self-inflicted - ie; almost surely a result of an installed app, and not the phone itself. That's the only variable, right?

IOS 5 Sound Quality and Sound Check issues

So since upgrading my iPod to iOS 5 the sound quality of my music has deteriorated massively and sound check no longer works as it should.
Tracks sound crackly and audio volume will remain balanced for a few tracks when sound check is on, then all of a sudden become completely unbalanced and all over the place. My iPod is only just about useable, it's a bit of a disaster that its main feature doesn't work as it should.
Everything else in my iOS5 works as it should.
Any help would be greatly appreciated.
Richard.

Since I bought iPhone4 and listened my songs with "Ipod app" and external speakears I was amazed how brilliant, sharp, intense, clear, perfect bass, perfect trebble the sound was, there was no distortions or saturations ever... The sound quality was just PERFECT with the equalization OFF!!! Not remember if I had SoundCheck ON before but now it doesn't make any difference. I installed iOS 5 over 4.3.1 or so and now sound is just more like noise compared to iOS 4, I have selected all presets or equalizations but ALL are poor, maybe some presets work better with some songs but still they are poor.... Songs did not have clarity!! The volume force was like degraded, now I have to set higher volume to produce same force than before with less volume... iOS 5 max volume (100%) is like iOS 4.2.1 85-90% of volume. Difference is that iOS 5 maximum volume starts slightly to distort or saturate audio quality... before with iOS 4 sound quality was Crystal Clear even with max volume!!! In short SOUND QUALITY is DEGRADED... or perhaps I'm a very critical and nonconformist guy in terms of audio quality... this kind of degradation is quite notorious when one loves music!! or is there some other configuration I'm missing here??
Totally agree with Richard!!
At first I thought it was a problem with my phone... I used to believe iOS 5 was engineered for new iPhone 4S hardware and since it is shipped with dual-core processor, I thought my phone was short in resources!!!
Why max volume is lower in intensity???
Why equalization with the EQ Off changed?? All my songs were stored on iTunes, they must have same sound quality properties as they were when first ripped..
I hope Apple enginneers did not sacrifice volume output force in favor of saving some battery, because normally we charge battery when listening music at home with our personal speakers equipment.
I would like to understand the reasons why the new "Music App" was "changed", and why these changes have to go backwards!! That is sad... because for iPhone or iPod lovers music was always important.
thanks

I recently got new mac air and transferred my old version garageband projects now when I open them in 10.0.2 I can add new tracks but then nothing can record, shows its receiving sound from software inst. but no sound. I checked audio preferences and

i recently got new mac air and transferred my old version garageband projects now when I open them in 10.0.2 I can add new tracks but then nothing can record, shows its receiving sound from software inst. but no sound. I checked audio preferences and they are set as they should be. I tried it in all the other older projects and same issue anyone have any experience like this very frustrating. Can one download old version still ? or can you run both versions on OS10.9.5 ?

Ok, either my question was too long or nobody seems to have an answer. Sad, either way
Here's something I found out in the meantime, maybe this is interesting for somebody or maybe - problem's not totally solved - enough info for any of you to give me further advice.
When I start Logic Core Audio driver de-activated, I can open old songs. Then I save them in a new folder with all audio files and a new name. And I remove all EXS24 instruments as well as the Space Designer. I quit Logic, re-open with Core Audio activated and I can open the song.
Problem no.1: EXS24 instruments don't find the appropriate samples, but EXSMananger Pro did help me with this. Same problem with Space Designer, which doesn't find the impulse responses, connected to a certain preset.
Two questions, every idea would be great!
- Is there any way to teach Space Designer Presets where to look for impulse respones. I can load IR samples directly and create a new preset, but I can't use my old ones.
- Is it possible to install Logic from scratch over an existing version? Or how should I de-install everything connected with Logic and then install a fresh version from CD?
Thank you again,
Joern

I recently got new mac air and transfered my old version garageband projects now when I open them in 10.0.2 I can add new tracks but then nothing can record shows its recieving sound from software inst. but no sound. I checked audio preferences OK

i recently got new mac air and transferred my old version garageband projects now when I open them in 10.0.2 I can add new tracks but then nothing can record, shows its receiving sound from software inst. but no sound. I checked audio preferences and they are set as they should be. I tried it in all the other older projects and same issue anyone have any experience like this very frustrating. Can one download old version still ?
thanks,

Ok, either my question was too long or nobody seems to have an answer. Sad, either way
Here's something I found out in the meantime, maybe this is interesting for somebody or maybe - problem's not totally solved - enough info for any of you to give me further advice.
When I start Logic Core Audio driver de-activated, I can open old songs. Then I save them in a new folder with all audio files and a new name. And I remove all EXS24 instruments as well as the Space Designer. I quit Logic, re-open with Core Audio activated and I can open the song.
Problem no.1: EXS24 instruments don't find the appropriate samples, but EXSMananger Pro did help me with this. Same problem with Space Designer, which doesn't find the impulse responses, connected to a certain preset.
Two questions, every idea would be great!
- Is there any way to teach Space Designer Presets where to look for impulse respones. I can load IR samples directly and create a new preset, but I can't use my old ones.
- Is it possible to install Logic from scratch over an existing version? Or how should I de-install everything connected with Logic and then install a fresh version from CD?
Thank you again,
Joern

How do I fix the audio quality on my iTunes? It sounds very distorted.

How do I fix the audio quality on my iTunes? It sounds very distorted.When listening to audio from other websites or programs, it sounds absolutely fine. Only when listening to music on my itunes is when it sounds awful and distorted. Please help.

Artwork doesn't sync with music in ipod...: Apple Support Communities
next try
- Unsync all music and resync
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.

TS3623 I rented a movie and can watch preview perfectly with video and audio feed as signal strength is at top when I checked. However, when I purchased rental video is fine , but I get scratched sound for audio. Any thoughts to fix?

I rented a movie and can watch preview perfectly with video and audio feed as signal strength is at highest when I checked. However, when I purchased rental video is fine , but I get scratched sound for audio. Any thoughts to fix? I rented movie within week and it worked. All previews of movies and show also works.

I have a suspicion that the problem is not in the recording device itelf, but rather in the playback-software, which is struggling with an unfamiliar audio format/codec/whatever-it's-called... I opened the file in QuickTime Player 7 (7.6.6) and selected "Show Movie Properties" and it says:
"Video Track: H.264
Sound Track: Integer (Little Endian)"
All current Mac systems support Integer (both Big and Little Endian) audio natively. The fact you can hear anything at all proves that the audio is playing back. The most likely problem would be a malfunction associated with the mic pickup.

Sound Check and audio levels

My Ipod touch will not let me change the audio settings. Before I upgraded to the latest os for my ipod touch I used sound check and the levels of my music was mostly the same, now it is all over the place and I can't seem to fix it. I will gladly take any advice on this please.

I have the same problem when disconnecting my Cintiq Companion Hybrid but its very intermident as if you continue to connect and discount it you can get it working again. Also the keyboard and track pad and cut out when you first plug it in, but have found that by keeping the trackpad active (moving your finger on it) while it goes to mirrored screen mode, it can help keep both working.

Audio sounds horrible after installing iTunes vers 10.5. How do I restore the audio quality?

How do I restore audio quality after installing iTunes version 10.5? The audio is high-pitched and metallic.

I wish i knew, no feedback or help forthcoming from apple yet

After import to iTunes 11.1, audio file plays -6db quieter - sound check off

when importing any .aiff into my MBP running 10.8.5, any sound file plays correctly when played via Quicktime Pro or using the 10.8 (spacebar) preview function.
When imported into the new iTunes 11.1 application, sounds play (I would roughly estimate) -6db quieter than when not played via this app.
Sound Check / Sound Enhancer functions are NOT on....
Anybody else experience this glitch / know the reason why ?

I'm having the same exact experience. It worked fine up until the 11.1 update, and then it just ceased to work.
I used to get a pop up window saying initializing or something of that sort, then if the video wasn't the right encoding, it would stop. If it was the right encoding, the video would then move to the top center of ribbon with a progress bar for the import. I've tried drag and drop, and also going to File -> Add File to Library. Neither methods work. I've even tried adding an entire folder to the library, and still nothing.
Is this an intentional act on behalf of Apple or a bug?

Audio Quality Poor in Windows, OK in MAC

I made a Quicktime movie from an iPhoto slideshow. It plays fine on the MAC, but in Windows the audio quality is poor. The high frequencies seem to be gone. (Perhaps the audio data are being undersampled?) Any ideas as to how I can improve the Windows performance?

Use the QuickTime Control Panel / Audio tab to check the settings used by the machine (sound out). You want to use 44100 Hz and 16 bit sample size.
Clicking on the "Devices" you can also edit other audio settings and properly configure them.
Updating audio drivers may also help and last resort is to use "Safe mode".

How Do I Improve Audio Quality on Face Time

Can anyone advise how I can improve the audio quality on Face Time?
Video is acceptable, but audio sounds like a long distance phone call back in the bad old days, lots of background noise and voices barely audible.
I don't think its my internet connection, currently ADSL2+, Line speed 4.9Mbps, download speed 617KB/s

Little Eddy wrote:
Can anyone advise how I can improve the audio quality on Face Time?
Video is acceptable, but audio sounds like a long distance phone call back in the bad old days, lots of background noise and voices barely audible.
I don't think its my internet connection, currently ADSL2+, Line speed 4.9Mbps, download speed 617KB/s
Welcome to Discussions, Little Eddy
Depending on whether you mean sound you hear or how you sound to others, here are some ideas for your consideration:
(1) Call from an area with less background noise.
(2) Use an iPhone. Its sound quality is superior to iPod touch.
(3) Try http://store.apple.com/us/product/MB770G/B It sounds better in my tests than internal mic.
(4) For FaceTime on your iMac, sit closer to the Mac's mic. Also test speaking louder.
(5) For FaceTime on your Mac, try a USB mic like http://store.apple.com/us/product/T6831LL/A
(6) Both you and your connection should test with other users to determine who has the problem.
(7) If sound you hear from other end, ask your contact to double check that his mic is not obstructed by a case, fingers, etc.
Mac Pro Quad Core (Early 2009) 2.93Ghz Mac OS X (10.6.5); MacBook Pro (13 inch, Mid 2009) 2.26GHz (10.6.5)
LED Cinema Display; G4 PowerBook 1.67GHz (10.4.11); iBookSE 366MHz (10.3.9); External iSight; iPod4touch4.2.1

I'm looking for a great sounding FireWire Audio/midi interface.....

Does anyone have experience with the
Mackie Onyx 400F FireWire Audio Interface and Logic 7 ?
I'm hoping to get the very best i can for around $700.
Some reviews i've read say that the sound is some of the best
around. (for the price) Namely, the mic pre.
I need simple but great/reliable midi... i simply need to send my midi controller into Logic, so the simple in/out seems fine for me.
Is it reliable and good with Logic ?

Hey man.
I've tested many of the mid range interfaces including the Onyx 400f. In terms of sound quality I would say the Onyx is the best and reprasents new standards in terms of audio quality at that price point. The pres smoke everything else i've tried (except outboard pres of course). The converters sound highly musical. I prefer them to the sound of higher specced units. BUT! Stability has been a major problem for this unit. Check the Mackie forums under Support on the Mackie website. Its full of horror stories. From high pitched whines, to clicks and pops to phantom power issues latency. Apparently some defective units were released.
I'm currently trying to get hold of one that works, cause I need that sound! But, it's not easy. I've hired two and both had issues, but sounded killer- dow! Anyway another problem is I don't think they have intel drivers yet.
Here are the ones I tested in my preffered order.
1. Onyx 400f
2. Metric Halo ULN-2
3. RME FF 400/800
4. Presonus firepod/ firebox
5. MOTU Traveler
Hope this helps. Cheers.

Sound Check Audio Quality

Similar Messages

Maybe you are looking for