Subject: [linux-audio-dev] hdr disk throughput
From: Paul Barton-Davis (pbd_AT_Op.Net)
Date: Sun Mar 12 2000 - 20:29:35 EST
i am a little worried.
it seems to me that in order to offer "true professional level" HDR,
one has to sustain twice the apparent rate of disk i/o.
the feature that causes this is the ability to move instantly in and
out of record mode. when transitioning from record to play, people
expect no break in the audio stream. that means that you must have the
playback data (from the disk) already read into a memory buffer ready
for use. but since you have no idea when this transition may occur,
you actually have to do this *all the time* you are recording - punch
out could happen anywhere.
thus, in a record-all-tracks situation, to offer this feature, you
have to be able to stream the given data rate both to *and* from the
disk.
comments ?
--p
This archive was generated by hypermail 2b28 : Mon Mar 13 2000 - 04:02:10 EST