yllus
Elite Member & Lifer
Having just bought a Creative Nomad II MP3 player that supports both MP3 and WMA I've been doing testing of the WMA format all day on my stock Creative headphones and Altec Lansing ACS56 Digital speakers to see what comparisons and losses/benefits there were in between encoders. Keep in mind I am using admittedly crappy speakers/headphones on admittedly undiscerning ears.
These are MS's claims with WMA 8:
Bit rate (Kbps) . . . . . . . Actual rate (Kbps) . . . . Description
28 . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . . . . . . FM radio mono
28 . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . . . . . . FM radio stereo
56 . . . . . . . . . . . . . . . . . . . 32 . . . . . . . . . . . . . Audio only, 56K modem
48 . . . . . . . . . . . . . . . . . . . 48 . . . . . . . . . . . . . Near CD quality
64 . . . . . . . . . . . . . . . . . . . 64 . . . . . . . . . . . . . CD quality
96 . . . . . . . . . . . . . . . . . . . 96 . . . . . . . . . . . . . CD audiophile quality
128 . . . . . . . . . . . . . . . . . . 128 . . . . . . . . . . . . CD audiophile quality
Tests:
A) Kenny G - The Moment (self-ripped)
1) LAME VBR, 32-256kbps.
2) WMA 8.00.00.343, 96kbps.
3) WMA 8.00.00.343, 64kbps.
#1 and #2 sounded identical, even through blind testing. #3 seemed to be less razor sharp than the other two. When you factor in file size, the win went to #2: WMA 96kbps.
B) Ja Rule - Always On Time (download)
1) Unknown encoder, CBR 192kbps.
2) WMA 8.00.00.343, 96kbps. Converted to a WAV from MP3, then to WMA.
3) WMA 8.00.00.343, 64kbps. Converted to a WAV from MP3, then to WMA.
#1 and #2 sound identical. Lyrics in #3 seem, again, less sharp. Huge filesize decrease in #2 makes WMA come out on top again.
C) Kajiura Yuki - Canta Per Me (download)
1) Unknown encoder, CBR 160kbps.
2) WMA 8.00.00.343, 96kbps. Converted to a WAV from MP3, then to WMA.
3) WMA 8.00.00.343, 64kbps. Converted to a WAV from MP3, then to WMA.
#2 was slightly noticeable during blind tests for a decrease in sharpness from #1, but nothing to claw at your own eyeballs about. #3 was pretty distinctly inferior.
So there you have it, my rather useless test cases that no real audiophile would base any conclusions upon. For me though, I'll for now on be expanding MP3s to WAVs, then encoding to WMA for playback on my Nomad II when I head out.
Night all. 🙂
These are MS's claims with WMA 8:
Bit rate (Kbps) . . . . . . . Actual rate (Kbps) . . . . Description
28 . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . . . . . . FM radio mono
28 . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . . . . . . FM radio stereo
56 . . . . . . . . . . . . . . . . . . . 32 . . . . . . . . . . . . . Audio only, 56K modem
48 . . . . . . . . . . . . . . . . . . . 48 . . . . . . . . . . . . . Near CD quality
64 . . . . . . . . . . . . . . . . . . . 64 . . . . . . . . . . . . . CD quality
96 . . . . . . . . . . . . . . . . . . . 96 . . . . . . . . . . . . . CD audiophile quality
128 . . . . . . . . . . . . . . . . . . 128 . . . . . . . . . . . . CD audiophile quality
Tests:
A) Kenny G - The Moment (self-ripped)
1) LAME VBR, 32-256kbps.
2) WMA 8.00.00.343, 96kbps.
3) WMA 8.00.00.343, 64kbps.
#1 and #2 sounded identical, even through blind testing. #3 seemed to be less razor sharp than the other two. When you factor in file size, the win went to #2: WMA 96kbps.
B) Ja Rule - Always On Time (download)
1) Unknown encoder, CBR 192kbps.
2) WMA 8.00.00.343, 96kbps. Converted to a WAV from MP3, then to WMA.
3) WMA 8.00.00.343, 64kbps. Converted to a WAV from MP3, then to WMA.
#1 and #2 sound identical. Lyrics in #3 seem, again, less sharp. Huge filesize decrease in #2 makes WMA come out on top again.
C) Kajiura Yuki - Canta Per Me (download)
1) Unknown encoder, CBR 160kbps.
2) WMA 8.00.00.343, 96kbps. Converted to a WAV from MP3, then to WMA.
3) WMA 8.00.00.343, 64kbps. Converted to a WAV from MP3, then to WMA.
#2 was slightly noticeable during blind tests for a decrease in sharpness from #1, but nothing to claw at your own eyeballs about. #3 was pretty distinctly inferior.
So there you have it, my rather useless test cases that no real audiophile would base any conclusions upon. For me though, I'll for now on be expanding MP3s to WAVs, then encoding to WMA for playback on my Nomad II when I head out.
Night all. 🙂