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Ripping and Computer Audio

These two subjects seem to be the most contentious around in the world of audio now. Both centre around sound quality and both somehow seem to bring out the most passionate views, often different to mine.

Theory one, is that it’s possible to get good sound from a computer feeding a DAC.  The debate tends to be as much around whether a Mac is better than a PC as a source as which DAC is ideal.  The general feeling seems to be that a Mac Book with a DAC costing around a £1k is cable of delivering better sound that a serious or very serious CD Player.  I agree a Mac and a DAC is cable of delivering a very good sound – but not a great one.  The Mac/DAC to my ears delivers a polished performance with poor dynamics downwards and little soul.  A great CD player adds back the soul, and reaches down into the quiet to somehow increase the space between the notes.  I’m sure it is possible to get a great sound from a ‘puter but it am sure it’s going to take a bit more effort than just plugging a DAC on to the output of a Mac.

Theory two, is that if a rip is perfect it should sound the same as another perfect rip of the same CD.  Seems pretty logical to me but somehow it doesn’t seem to be the case.  Listening blind and sighted to different rips which are identical, according to CRC and EAC’s file compare, they seem to sound different.  Consistency of results leads me to believe I’m not fooling myself.  Now, don’t expect these differences to be huge and obvious.  And don’t expect these to hear differences unless you have a revealing system and time.  If you have both and are willing to try a few rips then relax and let the tracks play through and observe your reaction to each track from an emotional level.  You need to be relaxed and not trying too hard – tension and stress are great ways of hearing less. When last trying this blind Malcolm Steward and I found differences in the rhythm of the track.

My conclusions are the same as usual with serious hi-fi.  The more I understand the more I realise I don’t know.

HDMI cable silences my listening room

Having a PC in my listening room was convenient as I have often been experimenting with different audio playback apps, sound cards, and all the various drivers like ASIO and Kernel Streaming.
The problem though was the noise of the PC. All that investment in a great hi-fi system and a signal to noise ratio destroyed by computer fans.
The solution came to me last week and it was simple.
OK, I have an advantage: a cable company as a client. Nigel at Chord was kind enough to send me a 5m HDMI Silver Plus cable and two DVI to HDMI adapters.
The experiment was to move the PC outside my listening room and then to use a 5m Chord HDMI and 5m USB cables to monitor and control the PC.
The worry was running a good monitor at 1920 by 1200 over a 5m HDMI cable. Would the image quality be reduced? The image was absolutely fine and so much so that I temporarily tried a 10 m cable which worked just as well.
Definitely a result. Noise removed from my listening room, the hi-fi sounds significantly better. The computer is no harder to use. I’ll use a USB DVD drive near the monitor for normal stuff but walk the few metres to use the Plextor Premium CD drive for serious ripping.

Ideal for dinner parties: the Wadia 170iTransport?

I was very lucky a few days ago to listen to a Wadia 170iTansport.
I knew I was going to be able to listen to it for a few hours so I chose a few wav rips of CDs and imported them into iTunes.

I restored my second generation 8Gb Nano so I would have “uncontaminated” storage. It’s now loaded with all the wav rips.

I listened to the digital output of the Wadia connected to the Behringer SRC2496 via a Chord Signature Digital Cable.

Performance using the Behringer was absolutely ideal for dinner parties and background music. There was absolutely no chance of anyone being dstracted by any emotion from the music. The best results were with the Behringer upsampling to 24Bit 88.2k before doing it’s D to A conversion.
I was a bit concerned that the results I heard were so far from what I have read in some magazines’ reviews so I connected the same digital cable to the Naim HDX as a source and using the same rips all the passion and feeling of the music was restored.

Well, what does that mean?  I guess it says that the 170iTransport works in some systems and not in others.

Chord SuperScreen Mains Cable

As designers will often say, designing a product with a strict budget in mind is very often far harder than designing something state of the art.

Chord set out to achieve superb performance at a very affordable price.  The SuperScreen mains cable delivers wonderful value for money at £65 for a one metre cable.

SuperScreen Mains

Chord Company HDMI Switching Matrix

In response to calls from frustrated customers, The Chord Company is supplying its first ever electronic component. Many owners of flat screens and projectors have benefited from connecting their components with Chord’s award winning HDMI Silver Plus cable but this hasn’t solved an increasing problem: the lack of available HDMI inputs. The solution is an HDMI Switching Matrix

HDMI Switching Matrix

Chord Signature AES/EBU Digital Cable

Chord has spent many months experimenting, with what has often been a frustratingly difficult connection, and believes that the new Chord Signature AES/EBU is the right answer.

One of the real challenges with the AES/EBU connection is that audiophiles have often found that, despite the technical advantages that the AES/EBU connection offers, a high quality S/PDIF connection will produce the better quality sound.

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