> On Mon, Oct 28, 2013 at 12:53:34PM +0100, Clemens Ladisch wrote:
>Roger wrote:
>> Trying to reduce my left and right channels to 0.5, but am noticing ALSA is
>> only reading values specified as floating as "0".
>>
>> The below should reduce the volume slightly on channels left (0) and right 
>> (0),
>> but it's obvious I'm getting the channel set to zero (0) or off.
>>
>> pcm.myHDMI {
>>         type route slave {
>>             pcm "hw:1,7"
>>             format S32_LE
>>             channels 6 }
>>         ttable {
>>             0.0= 0.9
>>             1.1= 0.9
>>             2.4= 1
>>             3.5= 1
>>             4.2= 1
>>             5.3= 1
>>         }
>> }
>
>The ttable entries are floating-point numbers, except when alsa-lib was
>configured --with-softfloat.

I guess just what I needed to hear.

However...

--- Snip ---

configure:12281: checking for softfloat
configure:12299: result: no

configure:7609: checking for inttypes.h
configure:7609: x86_64-pc-linux-gnu-gcc -c -Ofast -march=corei7 -pipe 
-D_GNU_SOURCE  conftest.c >&5
configure:7609: $? = 0
configure:7609: result: yes

| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */

--- Snip ---

I don't see much else within config.log concerning int/float, except for 
floating relevant to stream types.

Looking over the Gentoo ebuild package script:
--disable-maintainer-mode --enable-shared --disable-resmgr --enable-rawmidi 
--enable-seq --enable-aload

This is =media-libs/alsa-lib-1.0.27.1. I'll try stepping down to 
media-libs/alsa-lib-1.0.26-r1.

-- 
Roger
http://rogerx.freeshell.org/

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