> On Tue, Oct 29, 2013 at 08:01:35AM +0100, Clemens Ladisch wrote:
>Roger wrote:
>> 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.
>>
>> configure:12281: checking for softfloat
>> configure:12299: result: no
>
>What is the output of "aplay -v -D myHDMI something.wav"?
$ aplay-hdmi -v -D myHDMIX Music/Mozart/Essential_Mozart-1/01._Allegro_\(from_Eine_kleine_Nachtmusik\,_K525\).wav
Playing WAVE 'Music/Mozart/Essential_Mozart-1/01._Allegro_(from_Eine_kleine_Nachtmusik,_K525).wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
Route conversion PCM (sformat=S32_LE)
Transformation table:
0 <- 0*0.9
1 <- 1*0.9
2 <- 4
3 <- 5
4 <- 2
5 <- 3
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S16_LE
subformat : STD
channels : 2
rate : 44100
exact rate : 44100 (44100/1)
msbits : 16
buffer_size : 22080
period_size : 5520
period_time : 125170
tstamp_mode : NONE
period_step : 1
avail_min : 5520
period_event : 0
start_threshold : 22080
stop_threshold : 22080
silence_threshold: 0
silence_size : 0
boundary : 6214967485771284480
Slave: Hardware PCM card 1 'HDA NVidia' device 7 subdevice 0
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S32_LE
subformat : STD
channels : 6
rate : 44100
exact rate : 44100 (44100/1)
msbits : 32
buffer_size : 22080
period_size : 5520
period_time : 125170
tstamp_mode : NONE
period_step : 1
avail_min : 5520
period_event : 0
start_threshold : 22080
stop_threshold : 22080
silence_threshold: 0
silence_size : 0
boundary : 6214967485771284480
appl_ptr : 0
hw_ptr : 0
--
Roger
http://rogerx.freeshell.org/
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