Len M.
09-21-2003, 02:25 AM
We're trying to compile benchmark results for CF and SD storage media to develop a list of recommended media for the folks who are using our PDAudio-CF card to record high resolution audio. I wondered if Pocket PC Thoughts' readers might contribute to the survey.
We're using SPB Benchmark (http://www.softspb.com/products/benchmark/); its results seem to be reliable and repeatable.
It turns out that to store 24-bit/96 KS/s digital audio we need to see benchmark results of more than approximately 600 KB/s for two of SPB Benchmark's tests, specifically: "Writing 1 MB file (KB/s)" and "Copying 1 MB file to storage card (KB/sec)".
The fastest CF flash memory card we've found to date is the RiDATA 256 MB card, at 683 and 942 KB/s for the two tests respectively, on a Toshiba e755 and HP iPAQ 3835 respectively. This card seems to record very reliably at 24/96.
In contrast, a Samsung 256 MB CF card tests at 447 and 556 KB/s. It records fine at narrower word widths and slower sample rates but will not record reliably at 24/96.
We're particularly interested in benchmark results for the larger storage cards including the new MagicStor 2.2 GB CF hard disk; the new IBM/Hitachi 4 GB CF hard disk; Pretec and Lexar 2, 4 and 6 GB CF memory cards; all of the 1 GB CF cards from SanDisk, Simpletech, PQI, Lexar, RiDATA and others; and the new large SD cards from all manufacturers but most especially Panasonic.
If anyone out there cares to run benchmarks and report the results here (or send them to us via email), it would help a world full of audio professionals and amateurs. We'll post the results on our Web site.
Len Moskowitz
Core Sound
[email protected]
www.core-sound.com
We're using SPB Benchmark (http://www.softspb.com/products/benchmark/); its results seem to be reliable and repeatable.
It turns out that to store 24-bit/96 KS/s digital audio we need to see benchmark results of more than approximately 600 KB/s for two of SPB Benchmark's tests, specifically: "Writing 1 MB file (KB/s)" and "Copying 1 MB file to storage card (KB/sec)".
The fastest CF flash memory card we've found to date is the RiDATA 256 MB card, at 683 and 942 KB/s for the two tests respectively, on a Toshiba e755 and HP iPAQ 3835 respectively. This card seems to record very reliably at 24/96.
In contrast, a Samsung 256 MB CF card tests at 447 and 556 KB/s. It records fine at narrower word widths and slower sample rates but will not record reliably at 24/96.
We're particularly interested in benchmark results for the larger storage cards including the new MagicStor 2.2 GB CF hard disk; the new IBM/Hitachi 4 GB CF hard disk; Pretec and Lexar 2, 4 and 6 GB CF memory cards; all of the 1 GB CF cards from SanDisk, Simpletech, PQI, Lexar, RiDATA and others; and the new large SD cards from all manufacturers but most especially Panasonic.
If anyone out there cares to run benchmarks and report the results here (or send them to us via email), it would help a world full of audio professionals and amateurs. We'll post the results on our Web site.
Len Moskowitz
Core Sound
[email protected]
www.core-sound.com