Prev Previous Post   Next Post Next
Old 10-03-2009, 10:25 AM
dfkt's Avatar
dfkt dfkt is offline
Ultra Senior Member
Join Date: May 2006
Location: Vienna, Austria
Posts: 15,330
Default Clip v1 vs. Clip+ - RMAA and Spectrum Analysis

EDIT: Here are the latest frequency response graphs with Rockbox, all is fine:

Here's the RMAA test, both Clip v1 and Clip+, loaded and unloaded:

Same as before - the Clip and Clip+ are very nicely performing players. The new Clip+ shows a tiny bit better results under load - at least on paper, probably not to anyone's ears.

Frequency response, perfect as ever:

Crosstalk, the weakest point of the Clip - and most other players under load:


And here's the Sound Forge 8.0 spectrum analysis results about the often mentioned "Clip and Clip+ playing too fast" issue. I've used a Blackman-Harris windowing function with a FFT size of 64k (best frequency resolution, least time resolution). All tests have been made with WAV, FLAC, Vorbis, and LAME. All codecs produced the same results. The soundcard used for recording the 1kHz sine wave from the players was an Echo AudioFire4.

Dark blue graph is the Cowon S9, playing perfectly at 1000Hz. Green is the Clip+ (FW 1.01.05P), playing at 1003Hz. Turquoise is the Clip v1 (FW 1.01.32A), playing at 1007Hz:

Here Rockbox on the v1 Clip is turquoise (999Hz), stock firmware x.32 is green (1007Hz):

Here's the same for 500Hz playback. Orange is Cowon S9 (exactly 500Hz), Green is the Clip+ (501Hz), Turquoise is the Clip v1 (503Hz):

Everyone should draw their own conclusions, but for me the whole "issue" appears to be very much negligible.
Reply With Quote

Advertisement [Remove Advertisement]


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 05:22 PM.