Tag Archives: audio

apple, audio, gadgets, mobile

Boom time for audio?

The hi-fi industry is on its knees, or so I had thought. That may be true for traditional home stereos; but at a gadget briefing for UK press yesterday I saw more audio stands and stands highlighting audio products than I can recall. The themes: headgear (both headphones and earbuds) and wireless speakers.

As an example, Cygnett was highlighting its noise cancelling headphones and various earbuds, and told me that this is a fast-growing market.

I enjoyed the exotic things more of course, like the Edifier Spinnaker Bluetooth speakers – that little round thing is a wireless remote.

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Even more striking are the Opalum wall speakers, like this FLOW.4810 model, with an array of 48 1″ drivers in each active speaker.

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You can hang them on your wall like this:

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At the other end of the scale, BoomBotix showed its Boombot2 Bluetooth mini attached to the handlebars of a bike; a good way to make yourself unpopular, perhaps, but fun to see.

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Canadian speaker company PSB was showing its high-end M4U noise cancelling headphones

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I had a quick listen and they sounded good, though it is always hard to tell for sure in a crowded room. Neat feature: a press-button remote on the cable enables an external microphone so you can hear someone talking to you without removing the headphones.

Audyssey was there with its excellent powered speakers and docks; search this site for some reviews.

Another company with striking designs was Libratone, showing its Zipp AirPlay portable wireless speakers.

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One thing I did not see much of: old-style iPhone / iPod speaker docks that charge while you play. One exhibitor told me that users will think twice about buying docks with physical connectors now that Apple has changed the design and made everything incompatible without an adapter. In any case, wireless is more stylish. Bluetooth seems most favoured, since it is widely compatible; Android is making its mark and Apple-specific devices are becoming less attractive.

Also worth a mention is Urbanista, which showed its stylish headphones and earbuds, though the focus seems more on fashion than sound; like the London earbuds designed, I was told, to look like cuff links.

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The home stereo may be dead; but there is still innovation in audio. One factor is that almost any portable device – whether dedicated music player, smartphone or tablet – is capable of producing a high quality signal. Connect to the right headphones or active speakers and the magic begins.

apple, audio, music industry

Farewell to the Squeezebox

It looks as if Logitech has discontinued the Squeezebox, a range of devices for playing music streamed from the free Logitech Media Server. Logitech also runs a streaming service on the internet, Mysqueezebox.com, which supports internet radio, Spotify integration and more.

The Squeezebox devices are no longer on sale on Logitech’s web site, and a press release announces the Logitech UE range. This includes wireless speakers which play music via Bluetooth, a Smart Radio that connects to internet streaming radio and other services, earphones and headphones.

But what of Squeezebox? Here is the nearest I can find to an official announcement:

We’ve just announced our new brand, Logitech UE, and with it merging the design/engineering capability of Logitech and the Squeezebox product with the music know how of Ultimate Ears. We are positioning this new brand to serve music lovers across a wide range of music listening device, and amongst them the Logitech® UE Smart Radio.

Important for you to know, The UE Smart Radio can play alongside your Logitech Squeezebox products, but will operate and be controlled separately and will no longer receive updates. The team is working hard on releasing in a few weeks an optional software update for existing Squeezebox Radio users. This update will allow Squeezebox Radios to upgrade to the new Logitech UE Smart Radio experience.

Rest assured that the Squeezebox platform you’ve been enjoying over the years will continue to provide you access to a rich world of music and we’ll continue to address any questions or troubleshooting on our Logitech.com support page.

The news is sad but not surprising. Logitech is struggling with declining revenue and losses, and there are various reasons why the Squeezebox system no longer looks strategic. It works alongside iTunes but does not fit all that well with Apple products, it has always been a little bit too techie, and the era of filling huge hard drives at home with your music is probably in decline, thanks to internet streaming. I have been meaning to post about the good results I get from Google Music on the Nexus tablet, and of course there is Spotify.

I still love Squeezebox. If you want the uncompromised quality of lossless audio combined with multi-room support, where each player can play something different, it is a fantastic and cost-effective system. The Squeezebox Touch, reviewed here, is appreciated by audiophiles for its high quality audio.

Squeezebox might still be a viable for a company like Slim Devices, the original creator of the system, but makes less sense for a mass market company like Logitech, which acquired Slim Devices in 2006.

My thanks to the Squeezebox team for transforming audio at home for me and thousands of others.

Update: if you are wondering what is the future for Logitech Media Server (LMS) see this thread which has comment from a Logitech engineer. There is a new media server called UE Music Library (UEML) which is simplified compared to LMS and has no player control: the UE Radio can simply select music from the library and play it. No random play in UEML. UE Radio will not play music from LMS as far as I can tell. LMS is not going to receive major updates but will be supported with maintenance fixes for the time being.

audio, comment, gadgets, tablets, video

Nexus Q streaming device: you will use Cloud, you will use Android, says Google

Google’s Nexus Q is a streaming device. It is a spherical object with the following connections: optical S/PDIF digital output to connect to a hi-fi, wired ethernet, USB connection for “service and support”, and speaker outputs.

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The top half of the Nexus Q twists to control the volume. Tap the top LED to mute the sound.

The built-in class D stereo amplifier is 12.5 watts per channel.

There are also 32 multi-colour LEDs on the unit which blink in time to the music. This could be annoying but presumably there is a way to disable it.

You can stream music and video apparently, only from Google. This can be your own songs uploaded to Google, or purchased from the Play store.

Why would you want to stream music from the cloud, when it is already stored locally in iTunes, say, or in FLAC for a Squeezebox system? Cloud streaming can be high quality, but playing uncompressed audio over the local network is better still.

Why does not Nexus support standards like DLNA (Digital Living Network Alliance) streaming, so that you could stream to it from a variety of media servers?

Most seriously, Google says:

Requirements: Phone or Tablet running Android 2.3 (Gingerbread) or higher with access to Google Play

Is Google really saying that you cannot control streaming to a Nexus Q with a PC, Mac, iPad or any other non-Android device? For example, I am sitting here working at a PC. Do I have to pick up my phone in order to control Nexus Q? Or run the Android emulator, I guess?

One mitigating factor: developers can install stuff on the Nexus Q via that USB connector. I am guessing then what we may see these missing features plugged by third-party efforts.

The Nexus Q has the concept of “social streaming”. What this means is that if you enable guest mode, anyone else on the network who has an Android device can also stream their music. That could be fun, or could be chaos, but it is an interesting feature.

Music shared on the device is transient, according to this Wired article:

The queue is a transient song list, and not an actual playlist. When you add a song to the queue, the Nexus Q owner can listen to the track for 24 hours, even after you’ve left.

The price is $299.

audio, general

Great sounding recordings

There was a discussion on a music form of which the best sounding recordings out there.

I am always amused by these discussions because I see stuff picked that is great music (at least to those who pick it) but cannot honestly be described as great-sounding in a technical sense.

Of course it is hard to separate; and maybe there are albums that sound deliberately “bad” as part of the artistic statement.

Conversely, if the music does not interest you, it is hard to appreciate the sonics.

Here were my picks though: six albums that I know will always sound good.

Kind of Blue by Miles Davis – great presence and realism, interesting bass lines to follow.

 
Carpenters by The Carpenters. Probably influenced by the great voice, but I find this a really natural sounding recording. CD you can get for pennies at any supermarket here in the UK.

New Blood by Peter Gabriel. Modern recording, just very nicely done. Probably helped by natural acoustic sound of orchestra etc.

The Freewheelin’ Bob Dylan. I like this for its simplicity and realism. If you want a recording where you can close your eyes and imagine a man there singing, this is excellent.

Electric Cafe by Kraftwerk. Great sounding electronica.

Stravinksky: Le sacre de Printemps/L’Oiseau de feu; Detroit Symphony Orchestra, Antal Dorati (Decca) No idea how this ranks in a list of fine-sounding classical recordings but I like it, beautifully conveys the drama of the music.

Always interested in hearing about other people’s favourites, from a sonic point of view.

audio

Wireless speakers from Dynaudio: the new Xeo

Want to declutter your hi-fi? Dynaudio has one of the tidiest designs yet with its new Xeo range. What you get is a pair of active speakers with built-in DAC and wireless transmitter. The only wires you need are mains cables to power the speakers. There is also a remote for selecting the source and controlling the volume.

Xeo 5 is a floorstander with dual woofers.

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Xeo 3 is a standmount or bookshelf model measuring just 170 x 281 x 246mm.

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Both models have a 100w power rating (50w woofer and 50w tweeter).

You attach your sources to a transmitter box that accepts analog, digital or USB connections, though there is only one SP/DIF digital input which could be a nuisance, and it is optical only. Maximum digital resolution is 25 bit / 48 kHz.

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The range of the transmitter is (roughly) up to 50 meters through obstructions, or up to 100 meters in free space.

Price is around £1180 for the Xeo 3, or £2450 for the Xeo 5, plus £210 for the transmitter.

A neat solution; but for that kind of price you will want good sound and I hope to report on that soon.

apple, audio, reviews, smartphones, tablets

Audyssey Lower East Side speakers: remarkable sound quality in a compact package complete with DAC

Audyssey is a US company best known for its audio processing technology, as found in high-end home cinema receivers and the like. Recently the company has turned its attention to home audio, and now has a range with a couple of iPod/iPhone audio docks and these powered speakers, engagingly named “Lower East Side” (LSE), this being a tribute to a Manhattan neighbourhood which Audyssey says is “the stomping ground for bands propelling cutting-edge music at venues like CBGB, ABC No Rio and Arlene’s Grocery.”

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Audyssey is a company with attitude. You can expect that:

  • Audio quality will be high
  • Design will be individualistic but clean and uncomplicated
  • Products are for the modern listener equipped with Apple devices and the like, no CD player in sight
  • Prices will be at the premium end of the market

On that last point: do not write these off as too expensive until you have heard them. Yes, they are expensive compared to say a pair of Creative Inspire T10s (about 20% of the price) or Gigaworks T20 (about one third the price). Bear in mind though that the LESs have a built-in DAC and sound good enough than with something like a Mac Mini and nothing more you have a respectable and very compact home audio system.

What’s in the box

Inside the sturdy box you will find two powered speakers with integrated metal stands, each around 23cm (9 in) high and 12.4 cm (4.9in) wide including the stand. There is also a chunky power supply, a 3.5mm audio cable, a further cable that connects the two speakers, and a quick-start manual.

Connections are simple. The right-hand speaker has both optical and analogue audio inputs, plus a power socket. It also has a speaker output which you connect to the left-hand speaker with the supplied cable.

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Now attach a device with an audio output, and play.

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On the front of the right-hand speaker you will find a volume control which also switches the unit between standby and on. You do this by depressing the control, so when you turn it back on the volume remains as it was last set – a thoughtful detail.

Sound quality

The sound quality is remarkable. The aspect that is most surprising is the bass: put simply, these speakers sound much larger than they really are. The bass is not bloated or boomy though, especially if you use the digital input which I recommend.

I played Sade’s song By Your Side from Lover’s Rock. This song is characterised by deep bass which contrasts with Sade Adu’s silky clear vocals. On lesser systems the whole thing turns to mush, but this sounds great on the LESs. So does Prodigy’s Voodoo People, which depends on pounding bass for its potency.

The Miles Davis classic Kind of Blue is well conveyed, with piano that sounds like piano, the bass melodies easy to follow, and breathy trumpet that transports you back to the fifties studio where it was recorded (I seldom hear modern recordings that sound as good).

Any flaws? Well, you need to be realistic about the absolute volume level you can get from these things. They go loud enough for most listening, but you really want to rock out or party, look elsewhere. I would also worry about the longevity of the units if you max them out for long periods; though those fears may be unfounded.

The bass is prominent but not excessive in my view, unless you site them in a corner that further emphasises the bass, in which case you may find it too much.

I compared the LESs to a more expensive separates system with full-range floorstanding speakers. The LESs survived the comparison with credit; but you can hear how the vocals sound small and boxy relative to the large setup.

That said, when I was playing the LESs someone who came into the room was not sure whether the small or the large system was on; they are that good.

I compared the sound of the digital versus the line-in input. It goes without saying: if you use the line-in, then the quality is constrained by the quality of the DAC and pre-amplifier which precedes it. Attach a smartphone or MP3 player, for example, and it will probably be less good than the DAC in the LESs. Then again, most of these devices do not have a digital output so you have to make the best of it.

I used the Squeezebox Touch, which has a high quality DAC of its own, for a fairer comparison. It is hard to be sure, but to my ears the line-in option was slightly less clear than the digital, and slightly more bass-strong. My preference is for the digital connection.

Technical details

The supplied leaflet does not tell you much about the specifications. There are more details on the box:

  • Two silk-dome tweeters
  • Two 3.5” woofers
  • Two 4” passive bass radiators

These bass radiators are the secret of the LES’s extended bass. They occupy a large part of the back panel on each speaker:

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Note that these are not active speakers; they are correctly described as powered speakers because they have a built-in amplifier but the crossovers are passive, and the left-hand speaker receives an amplified signal from the right.

That said, in the hands of audio engineers a design like this has some of the advantages associated with an active loudspeaker. In particular, the amplifier can be designed specifically for the transducers, whereas a separate amplifier has to be designed to work with whatever speakers happen to be connected. This is especially true if you use the built-in DAC, allowing the integrated electronics to handle the entire analogue chain.

Audyssey revealed a few further details on its web site:

The LES speakers have passive crossovers.  We don’t list the amplifier power because it is meaningless in a powered speaker–it only has meaning in stand-alone amplifier.  The speakers are rated to produce 95 dB SPL at 1 m listening distance.  The optical input accepts PCM signals up to 24 bits/48 kHz.  Audyssey Smart Speaker technology is used to design the speaker driver, enclosure, and amplifier in conjunction with Audyssey EQ, Dynamic EQ and BassXT technologies.

I was interested in the remarks about high resolution PCM input. What about the common 24/96 format? I tried a 24/96 signal and the good news is that it played fine. Whether that means that the DAC actually fully supports 24/96, or whether it is played at 24/48 resolution, I do not know. I doubt that the difference would be audible.

Worth noting: both inputs are active all the time. This can be a good thing, if for example you want two sources plugged in, but only if you are careful not to play them both at once!

Annoyances

There are a few. One is that the speakers have an auto-standby feature, which kicks in if you stop playing music for a while. There is no auto-on though, so you have to get up and turn them on: fine if they are on your desk, but irritating if you are sitting at the other end of the room.

A remote volume control would be nice (and would deal with the standby problem too). That said, in most cases you have a volume control on the input that you can adjust remotely, but this is not always the case.

The line-in needs a relatively high signal level in order to make use of the full volume of which the speakers are capable.

The power supply is not universal. This means you cannot buy these in the USA but use them in the UK, for example, unless you get a new power supply or step-down transformer. The power supply is also rather bulky, for which there may be good audio reasons, but it detracts from the compactness of the design.

Conclusions

Despite a few niggles, the sound quality on offer is extraordinary for the size of these speakers; they are the best speakers of this type which I have heard. If you want something to sit on your desk plugged into a Mac or PC, but without compromising sound quality, these are ideal. They also make a great companion to a Squeezebox Touch or similar: all your music, in good quality with little clutter.

 

audio, gadgets, mobile, reviews, Uncategorized

The best ear buds I have heard: Wolfson’s Digital Silence DS-421D with noise cancellation

At the Mobile World Congress in Barcelona last month I caught up with Wolfson Microelectronics, who make digital converter chips and other audio components. They do not sell many products to end users, but are making an exception for the Digital Silence range of noise-cancelling headsets.

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The origin of the technology here is in the company’s 2007 acquisition of Sonaptic Ltd, specialists in micro-acoustics, or in other words getting good sound from mobile devices.

The Digital Silence range is unusual among ear buds in including noise cancellation. In other words, microphones on the outside of the buds pick up external sounds, phase reverse them, and add them to the input signal so that you hear more of the music (or voice, if listening to a call) and less of the external sound.

The new Digital Silence range has three models, of which I have been testing the DS-421D, which is set for general availability shortly.

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What you get is a stereo headset with clip-on controller, spare ear foams, mini-jack adaptors to cope with the fact that some mobiles wire up their 4-pole mini-jacks differently, USB charging cable, and a black zip-up carrying case. As with most headsets, there is also a built-in microphone and answer button. By default they are iPhone-ready, but will work with pretty much any mobile or player with a standard 3.5mm mini-jack output.

The controller has a rechargeable battery, charged by a USB connection, and specified to last for 14 hours of playback. A switch on the controller enables ANC and lights a green LED to show that the battery is OK. The ear buds work without ANC as well, so if the battery gives out you still have music. In a quiet environment, you might also prefer not to use ANC in case it adds artefacts to the sound.

A button on the side of the controller marked Monitor has a dual purpose. Press it to mute the sound; or press and hold to change the ANC filter. There is no display, but the unit plays one, two or three beeps to indicate the selection:

General: 20dB cancellation across a wide frequency band

Aeroplane: Low frequency cancellation such as found in an aeroplane is emphasised.

Office: Speech frequency cancellation around 200Hz – 1kHz is emphasised

Other products in the range are the DS-101A (around £30.00) and the DS-321D (around £50). I do not have a price yet for the DS-421D itself but was told “Under £100”. The DS-101A does not have selectable filters or a call/answer button.

Sound quality

Enough of the technology, how is the sound? This is what counts, and I am impressed. The DS-421D headset sounds excellent even without ANC engaged. No amount of noise cancellation would make them good if they were poor to begin with, and I suspect this fundamental good design is actually more important than the clever processing.

I used a variety of ear-buds for comparison. My regular set are Shure SE210 noise-isolating (not cancelling) ear-buds which I find easily out-perform the ones that come free with smartphones and iPods. I was taken aback by how much better the 421D sounded. The biggest difference is in the bass extension, but the sound is also smoother but without loss of clarity. These are the first ear buds I have used where you do not feel you are compromising by not using over the ear headphones.

The noise cancelling works. Don’t have unrealistic expectations, these will not deliver “digital silence”, but they will substantially reduce the noise. It is a bit like shutting it behind a door. There is also a slight change in the quality of the sound, for the better in my opinion, being a little richer than before. I used the DS-421D on an aeroplane and on the London Underground and had worthwhile results in both cases. I could have the volume lower and still enjoy the music.

I also compared the DS-421D to a set of Sennheiser PXC 300 foldable noise-cancelling headphones. The PXC 300 was slightly more effective in killing background noise, but the reason I tend to leave these at home is that they are bulky and use two AAA batteries which give out if I forget to switch them off. The DS-421D is more convenient. As for sound quality, it is close and I might even give 421D the edge.

The DS-421D is mainly for music, but I found the headset functionality useful too. I used it for Skype on a Windows 8 tablet and it worked much better than using the built-in microphone.

Design

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The design of the DS-421D  is excellent in terms of technology, but I am not so sure about the ergonomics. The length of cable between the ear buds and the controller is short, so you cannot clip the controller to your belt. It must be on your collar or perhaps top pocket. You could leave it dangling, but it is heavy enough to be a nuisance if you do.

Visually, the design looks a bit geeky to me; not unattractive, but I can imagine the DS-421D losing out among the more fashion-conscious purchasers.

Conclusion

Regular traveller who likes music? I recommend you give these a try. Now you can have noise-cancellation and high quality sound and a small, light headset.

Technical addendum

Wolfson’s noise-cancelling system is called myZone ANC (Ambient Noise Cancellation) which the company says uses “feed-forward, rather than the usual feedback systems”.

What is that then? I hunted around and eventually found Wolfson’s white paper on the subject*. Here is an illustration of feedback versus feed-forward:

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The figure on the left is a feedback system where the microphone is placed between the loudspeaker and the ear. In the feed-forward system the microphone is external so that the external noise is detected, inverted and added to the input. An advantage is that this does not require a sealed enclosure around the ear.

The main problem with implementation is time-aligning the cancellation signal with the input signal. Wolfson’s solution:

By placing microphones at the rim of the headphone, the ambient noise signal can be acquired and driven to the loudspeaker in advance of its arrival at the eardrum, thus compensating for the intrinsic response time of the loudspeaker.

The illustration in the paper shows a ring array of 5 microphones around each headphone, but since the DS-421D is a small earbud I doubt it has such an array. There is only one visible microphone aperture. Still, this gives some indication of the technology used.

Wolfson did not invent feed-forward as far as I know, so its innovation is in the area of how to achieve accurate time-alignment of the cancellation signal.

*The paper is called Ambient Noise Cancellation for Headphones and Headsets. I cannot find a direct link, but if you go here and search for resources for the WM2002 you will find it.

audio

Squeezebox server gets DLNA support: play FLAC on iPad

Logitech has released an update to its Squeezebox server, now called Logitech Media Server (LMS), and now at version 7.7.

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One of its new features is DLNA support. DLNA is a standard for serving and playing media across devices. Note though that although LMS is now a DLNA server, it does not transcode, so if for example you store music in FLAC format, a Sony PlayStation 3 will not be able to play it. Many other DLNA servers do support transcoding, so for example Illustrate’s Asset UPnP will stream FLAC as MP3 so that a PS3 will play it correctly.

This is still an interesting new feature for LMS, particularly as you can store images and videos as well as music.

One thing I have been gently investigating for some time is the best way to get a Squeezebox FLAC library playing on an Apple iPad or iPhone. I have had success with Asset UPnP but only with transcoding. After installing LMS 7.7 I tried the 8player lite DLNA client and was pleased with the results.

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I selected the Logitech Media Server and was soon enjoying music through the remarkable-considering-the-size iPad speaker:

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8player lite has a working free version or you can purchase for a modest price and get full features. There are some other DLNA clients you can try, but they do not all support FLAC. SmartStor Fusion works well with Asset PnP.

apple, audio, mobile, reviews

Review: Audéo Perfect Fit earphones

Audéo Perfect Fit earphones are designed to replace the set you got bundled with your smartphone or music player. The earphone set includes a microphone and a standard multi-function button, so that on an iPhone or many other phones you can answer or decline calls, pause and resume music, or skip to the next track.

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There are a few unusual features. One is the shape of the earbuds, which have a distinctive “leg”. In order to fit them you first attach one of a range of silicone or foam ear tips. Then you place them in your ear with the legs pointing up and forward, and the cable draped over the back of the ears. It sounds fiddly, but it is easy enough in practice, and gets you a secure and comfortable fit.

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The supplied manual does an excellent job of explaining fitting. There is also an optional ear guide which adds a shaped cable clip that hooks over your ears. This was not supplied with my review package, the PFE 02x, but does come with the more expensive PFE 12x or can be purchased separately. I found the fit was fine even without the clip.

The extra accessories, including the audio filters described below, are a point of confusion, as the manual in the PFE 02x lists them under “Package contents” even though they are not supplied. No doubt some customers complain that parts are missing; I would have done the same, except that I checked the product web site and external packaging which correctly shows that the only accessories in the PFE 02x pack are the silicone ear tips.

The next special feature is that each earbud is fitted with a passive audio filter, which can be changed according to preference. The PFE 02x comes with a single green filter, which you can see in the picture above, while the PFE 12x comes with gray and black filters and fitting tool.

The colours are significant. The black filters are said to amplify bass and high frequencies (what audiophiles call boom and tizz). The gray filters are meant to emphasize mid-range frequencies, while green are described as offering “perfect bass”.

According to Audeo:

In-house studies have shown that, when headphones exactly reproduce the response curve of the unobstructed ear, most people hear the sound as being very aggressive.

The response curve of Audéo PFE in-ear earphones is a compromise between a frequency range that compensates for the curve of the unobstructed ear and one that emphasizes bass and high-frequency sounds. This is what most people prefer.

In order to cover the widest possible range of user preferences we offer three audio filters.

Unfortunately the only filter I have tried is the green one supplied with the PFE 02x. However I am a little doubtful about the above explanation. The goal of hi-fi reproduction is neutrality, so that you hear whatever the musicians and engineers who created the sound intended. I appreciate though that when it comes to earbuds used on the move in all sorts of noisy environments, it does not makes sense to be purist about such things. Further, it is not realistic to expect earbuds to deliver the kind of bass you can get from full-range loudspeakers or even from high quality over-the-ear headphones, and indeed this is not the case with the Audéo. Still, what you care about is not the theory but the sound. How is it?

I carried out extensive listening tests with the Audéo earphones, comparing them to a high quality Shure earbuds as well as to a standard Apple set. My first observation is that the Audéo earphones do fit more snugly and securely than either of the others I tried, when fitted correctly, and that this close fit goes a long way towards obtaining a better and more consistent sound.

Second, I soon identified a certain character to the Audéo sound. In comparison to the Shure, the Perfect Fit earphones are slightly softer and less bright. On some music this was a good thing. I played My Jamaican Guy by Grace Jones, which has a funky beat and bright percussion. On the Shure the track was a little harsh, whereas the Audéo tamed the brightness while still letting you hear every detail. With Love over Gold by Dire Straits though, which is already a mellow track, I preferred the Shure which delivered beautiful clarity and separation, whereas the Audéo (while still sounding good) was less crisp. Daniel Barenboim playing solo piano sounded delightful though with slightly rolled off treble.

I did feel that both the Audéo and the Shure improved substantially on the Apple-supplied earphones, as they should considering their price, though even the bundled earphones are not that bad.

The strength of the Perfect Fit earphones is that they never sound bright or harsh; I found them consistently smooth and enjoyable. The sound is also clean and well extended, considering that they are earbuds. Isolation from external sounds is excellent, which is important if you are a frequent traveller.

The weakness is that they do in my opinion slightly soften and recess the sound.

That said, it may be that the other filters give the earphones a different character, and if you have the pack with a choice of filters it would be worth trying the variations to see which you prefer.

I may have been imagining it, but I felt that the earphones sounded particularly good with Apple’s iPhone.

Conclusion: a good choice, especially if you like a slightly mellow and polite presentation. If possible I recommend that you get the more expensive packs that include a case as well as alternative filters and the optional ear clips.

   

audio, music industry

Now you can rip SACDs

Sony’s Super Audio CD (SACD) is an audiophile format featuring high resolution and multi-channel sound. The discs are are copy protected, and until now it has not been possible to create an exact copy. Of course you can capture the analogue output and re-digitise it, and certain players from manufacturers such as Oppo enable you to capture digital output converted from Sony’s DSD (Direct Stream Digital) format to high-resolution PCM (Pulse-Code Modulation); but still, it is not an exact copy.

Ripping an SACD is still not that easy. The crack depends on getting hold of an early model of the PlayStation 3 that has not been updated to the latest firmware. Recent PS3s do not play SACD at all, plus you need firmware of 3.55 or lower, before Sony removed the capability of running an alternative operating system. There is no downgrade path, so it is a matter of scouring eBay for one that has not been updated.

Once you have the right hardware you can follow the instructions here  to rip the SACD:

SACD-Ripper supports the following output formats:
– 2ch DSDIFF (DSD)
– 2ch DSDIFF (DST) (if already DST encoded)
– 2ch DSF (DSD)
– mch DSDIFF (DSD)
– mch DSDIFF (DST)
– mch DSF (DSD)
– ISO (due to the 4GB FAT32 size limit on the PS3, files will be splitted when larger)

There is some discussion of the procedure here from where I have grabbed this image:

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Is it worth it? Good question. There are SACD enthusiasts who swear that DSD reproduces sound with a natural fidelity that PCM cannot match. On the other hand, researchers conducted a test showing that listeners could not tell the difference if the output from SACD was converted to CD standard PCM. I have also seen papers suggesting that DSD is inferior to PCM and may colour the sound. Expect heated opinions if you enter this debate.

Nevertheless, there are many great sounding SACDs out there and the format is not completely dead. Universal Japan, for example, issues SACDs made of SHM (Super High Material) at premium prices, and whether it is thanks to the super super technology, or simply clean mastering from good tape sources, these are proving popular within the niche audiophile market.

The fact that these discs cannot be perfectly ripped is part of the appeal from the industry’s perspective. Now that is no longer the case, and the torrent sites will be able to offer DSD files with full SACD quality.