Audio Device Settings

Posted by: Kage on 05 August 2011

Hi. Thanks to all the help and advice I recieved in my previous posts.

 

Currently setting up my Mac Mini and I read in the dCS guide to make sure your audio device output was set to the same rate as the source ie 44.1. It doesn't say anything about changing the bit rating (16, 24 etc). In the guide it shows the bit set at 24 with 44.1. I'm burning my cd's into iTunes as AIFF files but aren't they still 16 bit copies? Should I change my output to 16 or leave it on 24 bit?

 

Thanks once again.

Posted on: 05 August 2011 by pcstockton
Originally Posted by Kage:
 Should I change my output to 16 or leave it on 24 bit?
 
No, you should use XLD.
Posted on: 05 August 2011 by garyi

If you are using itunes as your media player then use itunes. If you are just looking to rip for other applications then use XLD.

 

Setting audio output in this case has no bearing on what you are doing. XLD can be set to import anything to any bit rate but upsampling will occur in that case. If you feel there is a difference then fair enough. But typically what will happen for streaming is all you have really achieved is upping the pressure on the various appliences in use.

 

So in conclusion:

1. for ripping, check the settings in the application you are using.

2. Audio output settings have no bearing on ripping.

Posted on: 05 August 2011 by Kage
I'm using iTunes. Once copied and ready for playback, do I set the audio output to 44.1khz/16bit or leave it at 44.1khz/24bit as per setting already in place?

Before I rip well over 300 cd's, would I be better using something other than iTunes as my media player? Media Monkey covers all formats right? Does it auto adjust to kHz/bit rate?

What's xld? Sorry for all the question I am new to this and digesting as much as I can.

Thanks
Posted on: 05 August 2011 by ferenc

If you are on a Mac, you should have to try the app called BitPerfect. It runs under iTunes, using iTunes as a kind of media manager, but runs its own audio engine and it can change the sampling rate automatically as the tracks require. Quite clever app. You can download the beta version from the developer's Google documents site. It runs well with iTunes 10.4, Hiface, HiFace EVO and Lion (OS X 10.7).

 

https://docs.google.com/leaf?id=0B7_M4k2-u6z_M2NkYjIxZjUtZTA1ZS00NGYwLWFkOTgtMzA5ZjcyN2FiZGE2&hl=en_GB&authkey=CNin6YMK

Posted on: 06 August 2011 by Kage
XLD now downloaded.

Can anyone help with set up. It's a bit daunting for my analogue head!

Cheers
Posted on: 06 August 2011 by Kage
...found some online guidance. The problem now is, after a couple of rips, on the next album XLD just crashes! It's done it on a few different albums now. CDs ripping are all brand new by the way.

Any ideas?
Posted on: 06 August 2011 by totemphile
There is no need for xld, if you are using iTunes as your library and player, ripping with iTunes is just as good. Various here have checked this numerous times. You will save yourself a lot of time and hassle sticking with it.
Posted on: 07 August 2011 by Kage
Totemphile, that's the conclusion I came to yesterday. I've started again with just iTunes ripping cd's to .aiff format.

Thanks for your reply.
Posted on: 04 September 2011 by Richard Lord
Originally Posted by ferenc:
If you are on a Mac, you should have to try the app called BitPerfect. It runs under iTunes, using iTunes as a kind of media manager, but runs its own audio engine and it can change the sampling rate automatically as the tracks require. Quite clever app. You can download the beta version from the developer's Google documents site. It runs well with iTunes 10.4, Hiface, HiFace EVO and Lion (OS X 10.7).

https://docs.google.com/leaf?id=0B7_M4k2-u6z_M2NkYjIxZjUtZTA1ZS00NGYwLWFkOTgtMzA5ZjcyN2FiZGE2&hl=en_GB&authkey=CNin6YMK

Bitperfect is now available from the App store for just £2.99, a veritable bargain.  It is still in beta form, 0.29.  But an update is expected at any time. 

I have tried Audirvana, Amarra and Pure Music.  Truthfully I did not appreciate any sonic benefits with any of them.  That must be me, because many others claim to hear all sorts of benefits.  But I was able to hear a significant improvement when using Bitperfect.  Everything was improved!  But perhaps in my case, the most obvious was the imaging.  All my music benefited, even old mono.  An incredible effect and at just £2.99 the bargain of the decade.

For those interested in its background and a few user comments on its effectiveness, go here:

http://www.computeraudiophile.com/content/BitPerfect

The above mentions Integer mode. For an explanation of what that is and why it is important for SQ, go here:

http://www.amr-audio.co.uk/lar...20Integer%20Mode.pdf

This article might help explain why digital SQ is a lot more complex than previously thought.  It is especially helpful in explaining why the USB is the preferred mode of connection.  The last sentence sums it up:

"Best results are achieved when feeding an Integer Mode, asynchronous USB DAC like the AMR DP-­‐777 that can take advantage of all these optimization features."


Posted on: 04 September 2011 by Guido Fawkes

> I have tried Audirvana, Amarra and Pure Music.  Truthfully I did not appreciate any sonic benefits with any of them.  That must be me, because many others claim to hear all sorts of benefits.

 

Not just you Richard - me too. I cannot hear any benefits from using these packages. Moreover, if you send a bitstream from PM to a Yamaha HD/CD Recorder and burn to CD and check the files they are the same as when you do it with iTunes. The only player I can hear an improvement with is Naim's (not tried Bitperfect though). The Naim player is, of course, integrated in to the Naim DAC (USB stick) or UQ (streaming) so I'm not really comparing like with like.


The Sonus renderer sounds like Apple's once you eliminate the jitter factor. My view is getting rid of jitter with a V-Link (Apple) or W4S (Sonus) makes more difference than the player.   


Currently playing from an Apple computer through a V-Link in to UQ driving some Eclipse computer speakers and thinking Joan Armatrading is sounding quite superb. So I'm using USB, but there is no getting away from it being as obsolete as firewire: if I bought a new Apple Airbook it would even have a USB interface. 


A PS Audio or Meridian transport feeding a Naim DAC still seems as good as any streaming solution I've heard.


I'm concluding there is no best way to play digital music; you can achieve very good results in all manner of ways. 


All the best, Guy


PS I created a CD-R gave it a bit of scratch and found that XLD and iTunes did not produce the same results, but I really couldn't tell the difference by listening to the rips.  

Posted on: 04 September 2011 by J.N.
Another vote for the bargain-price 'BitPerfect'. It integrates fully into iTunes and improves SQ.

Superb.

John.
Posted on: 04 September 2011 by Guido Fawkes

Sorry meant to say - So I'm using USB, but there is no getting away from it being as obsolete as firewire: if I bought a new Apple Airbook it would NOT even have a USB interface. 

Posted on: 04 September 2011 by NickSeattle
Hi, Guy,

I have no doubt you are just ahead of your time: I just bought the latest MBAir 11" and it has USB, but no FireWire (at least until there is a Thunderbolt converter brought to market.). I think the writing is on the wall re USB.

Nick
Posted on: 04 September 2011 by Simon-in-Suffolk
Richard, I read the links on bit perfect. To be honest most of the effort seems to go into bypassing the compromises introduced by Apple in their audio sub system. In short it's an attempt to get you closer if using Apple components to a more standardised approach of a high quality digital audio renderer, in essence they are focussing on precision rather than anything else. But interestingly they seem to refer all the demanding digital audio processing to the DAC and it's DSP and also seem to  acknowledge that despite this  RFI and earth loops from the Apple hardware can still be an issue
In short Bitperfect appears to be an app that gets rid of Apple's bloatware and enforced conversions  on it's audio subsystem and not surprisingly it's sounding better, just think of all those errors and related noise that is being bypassed. I wish it well. I just hope Apple recognise it's deficiencies in high qulaty audio  and don't stop Bitperfect from working with the next OSX upgrade.
Simon
Posted on: 05 September 2011 by Richard Lord

Hi Simon

 

I agree with you.  Apple ensure their products pass muster with 90% of their users.  We represent a tiny fraction of the total, not worth worrying about. Of course the same can be said for Microsoft.  

 

But what is the alternative?  Please do not suggest networking via a NAS.  I have been down that route.  At least Bitperfect does indeed avoid Apple's compromises and offers us a way to achieve superior sound, without any need to network.  

 

Richard

Posted on: 05 September 2011 by Guido Fawkes

Hi Richard 

 

What about a CD transport? The PS Audio Perfect Wave is quite splendid unless of course you want to listen to Internet radio: it's useless at that, but great otherwise. It buffers the CD in memory and plays from there and has magic software that ensures the CD read is perfect. It sounds great though with a Naim DAC. 


OK so you not wanting to do that, So next suggestion is the Meridian Soloos with its super user interface. Delightful machine that provides a whole new listening experience.


Me, I'm happy with a W4S modified Sonus ZP90 to feed my Naim DAC. Works with both Apple and VB servers and most other things .... much easier to set up than any other network music player I've tried


And, of course, there is always the HDX though at its price point I'd be more than tempted by Bob Stuart's effort. 


All the best Guy 

Posted on: 05 September 2011 by Simon-in-Suffolk
Richard, I guess there are plenty of alternatives but each has pros and cons. I guess if I was to muse on this MS solutions offer a more open API, but at the cost of sometimes unduly complicated software and sometime poor reliability issues, but you can get closer to what you want to do. MS learnt that with DirectX sometime back. Apple perhaps have yet to go through that hurdle yet, but because their API appear more restrictive the software using these APIs  is often simpler, more consistent and reliable, at the expense of having less control. But as you say if that captures 90% of your users demands then that is perhaps good enough for Apple. But Bitperfect seems a great effort in taking Apple down the DirectX path.. If Apple recognise it as such per my previous post.
Simon
Posted on: 05 September 2011 by Richard Lord

@Guy:

 

A CD transport?  Interesting.  Would you believe I consider CD's as obsolescent?  I am finding it increasingly difficult to find what I want.  More and more I am being offered lo res downloads.

Anyway, like vinyl, CDs mean twisting my head sideways to search through racks to find what I want.  Whereas with my iPad Remote, I am sitting comfortably and I just flick through the hundreds and hundreds of albums.  I can immediately choose something I have not played for years.  Don't like it?  No problem, just instantly change to something else. 

 

Regarding other computer based systems that you mentioned, Meridian, etc.  Why?  Why would I change from something that works?  I am a firm believer in enjoying my music.  SQ is just one aspect.  I demand an easy to use interface.  True, there are many choices available.  I am not making claims that my choice is the best, just that it is my choice.  You and others may choose differently.

 

@Simon:

 

From the Well-Tempered Computer:

 

From mid-2010 on USB audio class 2 drivers are available in OSX 10.6.4 and Linux.
Both support sample rates up to 384 kHz.
It is unclear if Microsoft is going to support USB Audio 2.
You need a third party USB class 2 driver on Windows.

 

Full article here:  http://www.thewelltemperedcomputer.com/KB/USB.html

 

DirectX is no benefit here. DirectX is a set of API's mainly for video and gaming. In fact many Windows users are using iTunes in preference to MediaPlayer.

 

The good thing is that we now have an excellent means of obtaining not just a bit-perfect stream, but the means of ensuring this is handled in the most appropriate way to ensure best SQ.  As the article I cited previously stated, it is not enough to have a bit-perfect data stream.  It is its implementation that matters.

 

Isn't the future exciting?

 

Richard

Posted on: 05 September 2011 by Simon-in-Suffolk
I certainly disagree about DirectX/ActiveX mostly being used for video games and not applicable for quality subsystem control of IO for industrial apps,  it might have started there in the mid 90s to provide a virtual machine on top of the core drivers  but  we and many others  now use it extensively in MS desktop design for call centres around the world  where it has been important to control the codecs, jitter and delay using soft phones and voice over IP, where latency and delays caused by other software running on the client needs to be controlled so as to avoid distortion and quality loss. I am afraid OSX just does not give us the crucial control we need in this environment, even though many customers would prefer to use it...
Simon
Posted on: 05 September 2011 by Richard Lord

So DirectX has useful commercial applications.  Excellent.  But I and most audio enthusiasts are only interested in our hobby.  Whatever cleverness is available within the DirectX API's, Apple offers a superior user interface.  Forget all the rubbish that Apple include for their 90 percentile customer base, it can all be bypassed with Bitperfect.  What we are left with is a superbly easy user interface, one that offers (with Bitperfect or similar) superb SQ.  

 

To me, my first priority is enjoyment.   This is more than just SQ.  I want ease of use, simplicity of setup and stability of programs.  I get this with my MB and iPad.  Obviously others (maybe you) would disagree about these things.  Fine.  The beauty of freedom of choice.

 

No offence, Simon

 

Richard

 

 

 

Posted on: 05 September 2011 by Guido Fawkes

Hi Richard


Yes the iPAD is a wonderful thing. 

 

No reason for you to change. I use Apple/Linux systems: won't have Microsoft products in the house if I can help it (yes I know it sneaks in on the UQ and Sonus). I have to use Windows 7 for work and the interface is quite dreadful compared with an iPAD or OSX IMHO of course. I'm not sure what OS Meridian uses; however its user interface is the best I've ever seen for a music server - much better than either Sonos or iTunes, which are both very good especially Sonus. 

 

The Meridian is an addictive toy in many ways, albeit a very expensive toy. I don't have one, but have played with one. If you play a Richard Thompson track from Industry and like the bass you can click to see who is playing the bass, it is Danny Thompson and another click lists other albums you have with him playing bass on them - you get all kinds of info including reviews though I can't agree Alice's School's Out album was better than his Killer album. I'm far from convinced it produces the best SQ, but that user interface is .... wonderful.  

 

There are lots of ways to enjoy music and as long as we enjoy what we hear then that is what counts. I had a look at Bit Perfect, but couldn't seem to download it without logging on to Google Docs, so I gave up on it. Not sure if would run on my old PowerPC Mac in any case. It sounded like it would attempt to optimise my Mac for music replay and so was going to try it. 

 

All the best, Guy 

Posted on: 05 September 2011 by Simon-in-Suffolk
Richard no offence taken.. :-) I was just trying dispel a few misconceptions whilst 'typing' on my iPad :-).

By the way I was looking at USB 3.0 which seems to be one of the new high speed consumer interfaces unto 5Gbps, but I notice Intel delayed their chip production to 2011, cynically perhaps to give a head start to it's own Thunderbolt:-) However briefly looking at USB3.0 it still appears asynchronous. I really wish that I2s was more widely adopted in consumer land other than for the ridiculously high end consumer digital audio equipment and industrial applications. To me it avoids so many of the issues we are wasting huge amounts of time on; ie transmission jitter and bandwidth limitations. It should make USB X, FireWire  and SPDIF obsolete for audiophile quality digital audio. ( I am afraid I don't know much about to Thunderbolt to comment).
Oh well, I am not holding my breath....
Posted on: 05 September 2011 by Richard Lord

@Guy:

 

I shall look out for Meridian at the Whittlebury Show (assuming they are there).  It certainly sounds very interesting.

 

@Simon:

 

Understood.

 

It looks like we are going to have a period non-compatibility soon.  Apple seem not interested USB 3.0 and Dell and others it seems, are not interested in Thunderbolt.  Ridiculous.  Why, I wonder?  Politics, I expect.  

 

Re. I2S.  I was told by somebody it will only work best with very short leads, meaning a few CM.  If true, not much practical use.  Whatever the choice, there is always going to be compromise, unfortunately.  I am lucky, I am very happy with what I have.  Not interested in upgrading for the foreseeable future. But I do still love visiting the Shows. 

 

Would love to meet anybody from the Forum at Whittlebury.  

 

Richard

Posted on: 05 September 2011 by Richard Lord
Originally Posted by Guido Fawkes:

Hi Richard


Yes the iPAD is a wonderful thing. 

 

No reason for you to change. I use Apple/Linux systems: won't have Microsoft products in the house if I can help it (yes I know it sneaks in on the UQ and Sonus). I have to use Windows 7 for work and the interface is quite dreadful compared with an iPAD or OSX IMHO of course. I'm not sure what OS Meridian uses; however its user interface is the best I've ever seen for a music server - much better than either Sonos or iTunes, which are both very good especially Sonus. 


(snippy, snippy) 

 

All the best, Guy 

The UQ, etc have no access to Apple, of course, because Apple will not licence their OS to anyone. Some say selfish, others sensible.  Depends on your point of view, I suppose.  But Naim could have used Linux.  I wonder why not?  They must have a reason.

 

But the UQ, together with the UnityServe nearly did my head in.  I suppose I could/should have persevered, but it was the awful culture shock at the loss of the lovely user friendliness of iTunes.  

Posted on: 06 September 2011 by tonym
Originally Posted by Guido Fawkes:


 I had a look at Bit Perfect, but couldn't seem to download it without logging on to Google Docs, so I gave up on it. 


 Bit Perfect's available for download from the "App. Store" at £2.99p Mr Fawkes.

 

After reading this thread last night I downloaded it and, by golly, it's rather good! I've been using Pure Music for a while because it worked with iTunes but Bit Perfect is rather nicer and does sound better; heaven knows why but I don't care really. A true bargain!