Feature request: please support 32 bits_per_sample in PCMConverter about python-audio-tools HOT 4 OPEN

I've updated the ALSA output module to support 32-bit output for 24-bit input files and it appears to be working correctly on my system. Hopefully this will solve your playback issue.

from python-audio-tools.

I made 2 different approaches to use your library with 24bit files:

1.) using audiotools,player.Player gives:
File "/usr/lib/python3.4/site-packages/audiotools/player.py", line 992, in set_format
bits_per_sample)
OSError: unable to attach ALSA mixer to card

2.)
pcmReader = at.open(uri).to_pcm()
mask = pcmReader.channel_mask
pcmConverter = at.PCMConverter(pcmReader,96000,2, mask,32)#16 instead 32 works
self.__pcmreader = at.BufferedPCMReader(pcmConverter)

gives:
File "/usr/lib/python3.4/site-packages/audiotools/init.py", line 2965, in PCMConverter
raise ValueError(ERR_INVALID_BITS_PER_SAMPLE)
ValueError: invalid bits-per-sample

.asoundrc in my /home is:
pcm.!default {
type hw
card 0
device 8
}
ctl.!default {
type hw
card 0
device 8
}

from python-audio-tools.

Looks like your default ALSA device doesn't support mixers. I've updated my ALSA output module to work without them. This should hopefully enable proper playback, though volume control won't be accessible from within Python Audio Tools.

from python-audio-tools.

wow, that was fast, thank you very much
...proper playback enabled :-)
tested with 24bit/48000Hz, 24bit/88200Hz and 24bit/96000Hz
...volume control is not necessary
i'm one of those paranoid audiophils, looking for the shortest audiopath... no pulse, no mixer ;-)

although it's not vital anymore, would it be possible to support 32bit in PCMConverter ?

from python-audio-tools.