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Old 05-02-2010, 10:28 AM
DampCookie DampCookie is offline
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Join Date: Apr 2010
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Default Zune HD SNR - Tested

About a month ago I picked up a ZuneHD 16gb of ebay (I live in Canada....) and decided to pit its SNR against that of my only other (good) Mp3 player; the Samsung Yp-z5. I've been trawling the internet in search of the ZuneHD's Signal to Noise Ratio, but haven't had any luck, so I used the z5 as control.
I generated an Mp3 clip of silence in Audacity, then played back the clip @ full volume from both players, and recorded it with my computer. Both from my subjective listening tests of both players, and also from the objective testing/freq analysis of the SNRs, both are almost exactly equal (from subjective testing, I would pick the ZHD by a hair...). In the analysis, both players have the same 7KHz spike, but the Zune has a lower high-pitched "buzz". The z5 has an SNR of anywhere from 85-89dB depending where you get your figures, so the Zune would probably be 86-90dB.
For you nit-pickers: Yes, I know that different music formats, the recording equipment and the difference in full output volume will all affect the SNR results. This is more of a preliminary test- feedback & more testing would be great.

Note: Picture 1 is of the recordings w/ the top being the computer, the second the yp-z5 and the third the zuneHD. Also, the next three pics are of the noise analysises (is that the plural??), in the same order.
Attached Images
File Type: jpg Yp-z5 Noise Analysis.jpg (20.4 KB, 38 views)
File Type: jpg Zune Noise Analysis.jpg (20.4 KB, 34 views)
File Type: jpg Recording Noise Analysis.jpg (23.4 KB, 35 views)
File Type: jpg SNR Test.jpg (58.2 KB, 49 views)
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signal to noise, snr, test, yp-z5, zunehd

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