In article , Andy
Furniss spam@spam wrote:
Jim Lesurf wrote:

My assumption is that is so. However I'm hoping I could capture the
*decoded* audio LPCM on its way to the 'DAC' by using ALSA. (cf
below) That would do for my purposes as I want "the results you get
using the BBC recommended setup" to find out what users can expect to
get.

I've only ever capped stereo browser/flash once, some time ago. The path
of least resistance for me was to use jack + the alsa-jack plugin as
flash would only output to alsa. IIRC it was just a case of running
qjackctl then using patchbay to connect the sound to arecord. IIRC
arecord was a better choice than ffmpeg as the latter started
overwriting when the wav size limit was reached, but arecord spawned a
new file and continued.

Noted. May come in handy. :-)

As yet I've managed to get ALSA to do what I want for normal playout and
recording.

However for stereo from the iplayer (FF + Flash) I use the 'simple' method
of using a USB DAC as the (alsa) default output device. Then use a DAC that
has an spdif output I connect to a recorder. This is round-the-houses in
computing terms, but works perfectly and means I really do capture what any
ordinary user would get with their default DAC. Fine for my tests.

However I have no surround sound gear at all. Not really my interest.

The good news is that, because of that, I'm happy if I can simply define
the alsa output device as actually being an alsa plug to a file. Don't care
if there is no audible output at the time. Only worry is to know if it is
working if I can't hear anything. But I've no idea if that'll work in this
case as I know nothing about Chrome in addition to not having used
surround! 8-]

The main pest with all this is having to install a distro, etc, purely to
do it. And may mean the machine isn't useful for anything else until I
finish and wipe what I did. That said, I may try a dual boot. However the
laptop only has a 60GB hard disc (SSD), so not a lot of space to play with.
It does have an SD card slot, though, which would do for the data. Wonder
how small a disc is needed for xfce Mint + Chrome and nothing much else...

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html