Subject: [linux-audio-user] Recording from SPDIF with Audiophile
From: davidrclark_AT_earthlink.net
Date: Fri Jan 02 2004 - 23:57:08 EET
<lau_AT_hippie-online.de> HippiE wrote:
> Is this also true if you do not use the mixer? What a nonsense! :-(
If you use arecord in any way, this reduction to 8.3% of the level occurs
if you use ICE1712 for the envy24-based chips. Yes, it is very "nonsensical"
for a 2-channel card, but the envy24 chips were developed for multi-channel
(such as 12) inputs, so to be safe, they reduce the volume to 8.3% for
each input. There should be a way to modify the ttable settings --- and
I'm sure there is --- but I don't know where or how to do this myself.
This occurs with or without envy24control, and with or without amixer
settings. All mixer settings of 100% give you 8.3% AS RECORDED, even if
your input level is peaked (as loud as possible) with ICE1712 default
routings. So you're losing 4 bits (20 bit recording from a 24-bit card!).
As I mentioned previously, qarecord works fine. 100% is 100%. I'm not
sure about ecasound. I'll have to check that out. I am also interested
in command-line recording so that I can batch-process audio. I don't
want to have to point-click for each recording. (But qarecord is pretty
nice! I wish I could set it to "mono.")
This archive was generated by hypermail 2b28 : Sat Jan 03 2004 - 00:00:10 EET