Smartphone Audio Quality Testing
by Chris Heinonen on December 8, 2013 5:15 PM EST- Posted in
- Smartphones
- Audio
- Mobile
- Tablets
- Testing
Many readers have been asking for audio testing on phones and tablets, and we are happy to be able to deliver it now. Because I live far away from Brian and Anand, I can’t easily access units they are reviewing so audio data may not run the same day a review is published. I do hope to be able to add it on to everything in the future so that all of our reviews will be as in-depth as possible, from processor to software, display to audio.
I also have to thank Audio Precision for their loan of the APx582 and their access to their offices and support staff. Without that these tests would not be possible. I also wanted to use their equipment as it is the reference standard for the industry and there can be no doubt about its quality. As I do a lot of AV testing as well, I found that more generic sound card methods of testing are becoming limited as the capabilities of products exceeds what they can easily measure. There are no such worries with the Audio Precision.
I also look forward to feedback from readers on the information here, and what else you would like to see tested going forward. Hopefully this will provide another set of data to help you determine if a product will fit your needs, and which vendors are trying to push performance in all categories.
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JasonQG - Monday, December 9, 2013 - link
I'll be curious to see how the iPhone 5s compares to the iPhone 5. I noticed a definite improvement when I upgraded, at least to my ears' perception.ClockHound - Tuesday, December 10, 2013 - link
Nice to hear you're taking sound semi-seriously with devices that have a semi-important audio task. At least for those who use smartphones for aural communication and music playback.Nice to see the Audio Precision in action. Great unit. However, please, consider putting a little more thought into the scaling of your FR graphs. What appears visually as a huge peak in the htc Beats graph barely has a 3dB rise. That's not a huge peak.
A 1dB rise at 10k is not much of a rise and since it doesn't display enough data, we can't tell if it's a low Q event or not.
The Audio Precision can scale the vertical axis to make plots more informative rather than sensational.
pandemonium - Tuesday, December 10, 2013 - link
Awesome stuff. Keep it up AT!kreacher - Tuesday, December 10, 2013 - link
Great article, would it be possible to test audio input (the mic) in this much detail. Noise cancellation as well as how it does in speakerphone mode / video recording. I know earlier reviews / articles have mentioned this are but it would be great to have detailed numbers like this article.Cyleo - Tuesday, December 10, 2013 - link
This is awesome. I truly love this, please continue this work ;)Any change one of the more recent Sony models makes the test (Xperia z comes to mind)
Pastuch - Tuesday, December 10, 2013 - link
Chris, fantastic article, way to bring me back to Anand. Please include results of the Iphone 4s and any other phones you get your hands on. My girlfriend and I are phone whores, she's Apple, I'm Android. I'm constantly playing with all of our phones and cans trying to find the best audio combo.I run Sennheiser HD-25s, Sennheiser Momentums, V-Moda Crossfade M-80s, and Koss Porta Pros (Awesome since the 80s!).
Best sounding phone I've ever heard:
Iphone 4S sounds way better than the new Iphone 5. It's definitely louder and fuller. Too bad the 4s doesn't have APT-X codec for Bluetooth.
Runner up:
Samsung Galaxy S with Voodoo sound Rom (Note, you need to load a non-standard rom to make it sound great)
The rest:
SGS2 (International Model): Too quiet, poor quality, disappointing dynamic range.
SGS3 (North American Model): Poor quality, lots of cross talk, disappointing dynamic range.
HTC One (Beats Audio OFF): Sounds great, really no complaints. A step above most Android phones. Still miss the Wolfson DAC though.
IPhone 5: Still sounds great but it doesn't live up to the 4S. I'd say it sounds slightly better than the HTC One but the difference is really marginal.
Nexus 5: Sounds better than the SGS2 or 3. The V-Moda M80s sound good because they aren't hard to drive. The Sennheiser HD25 needs the top volumes and the clipping is obvious. The HTC One sounds a little better.
vision33r - Tuesday, December 10, 2013 - link
HTC One audio is a joke. Which features a software sound enhancer AKA Beats Audio which any custom rom can cook into their roms.I've had the S3 with the Beats Audio software and took it off flashed a better DAC amp app.
Traum - Tuesday, December 10, 2013 - link
As a head-fi audiophile, I want to THANK YOU for doing this!MWisBest - Tuesday, December 10, 2013 - link
Nice article, definitely curious as to how my Galaxy Nexus would fare in this, as I'm a bit of an audiophile.hrrmph - Wednesday, December 11, 2013 - link
Awesome topic and write-up :)Keep these coming, please.