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[Platform][Audio-Server][PortAudio] Cannot play sound ...
https://github.com/snipsco/snips-issues/issues/148
#The IPC key of dmix or dsnoop plugin must be unique # If 555555 or 666666 is used by other processes, use another one # use samplerate to resample as speexdsp resample is bad defaults.pcm.rate_converter " samplerate " pcm.! default { type asym playback.pcm " playback " capture.pcm " capture "} pcm.playback { type plug slave.pcm " dmixed "} pcm ...
dsnoop/dmix for respeaker hardware · Issue #165 · …
https://github.com/snipsco/snips-issues/issues/165
Pyaudio is also based on portaudio, so I think it could encounters the same issues as the audio-server (I did some tests few weeks ago) ... The dmix plugin supports only playback stream ALSA lib pcm_dsnoop.c:556:(snd_pcm_dsnoop_open) The dsnoop plugin supports only capture stream ALSA lib pcm_dmix.c:990:(snd_pcm_dmix_open) The dmix plugin ...
c - Continuous recording in PortAudio (from mic or output ...
https://stackoverflow.com/questions/15690668/continuous-recording-in-portaudio-from-mic-or-output
To interact with the data stream real-time you'll need a mechanism that either sleeps (busy waits on Windows) for the frame period (sample rate / samples per frame) or uses a thread synchronization primitive to trigger your thread int main that there is audio ready to be processed. This will give you access to each frame of data that PortAudio delivers during its …
[Portaudio] portaudio not working on raspberry pi with usb ...
https://portaudio.music.columbia.narkive.com/dLGeEoe0/not-working-on-raspberry-pi-with-usb-soundcard
Portaudio is probing the Alsa configuration in /usr/share/alsa/alsa.conf. There are entries for all sorts of possible pcms, such as 'rear' or 'modem'. If the particular soundcard that is being opened does not have one of them when Portaudio tries, then Alsa-lib reports it as unknown. To demonstrate, find the line pcm.rear cards.pcm.rear
PortAudio: Opening a Stream Using Defaults
http://www.portaudio.com/docs/v19-doxydocs/open_default_stream.html
PortAudio. The next step is to open a stream, which is similar to opening a file. You can specify whether you want audio input and/or output, how many channels, the data format, sample rate, etc. Opening a ''default'' stream means opening the default input and output devices, which saves you the trouble of getting a list of devices and choosing ...
[MuseScore] crash on launch / Multimedia and ... - Arch Linux
https://bbs.archlinux.org/viewtopic.php?id=156582
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream using PortAudio Version: PortAudio V19-devel (built Feb 24 2012 11:56:24) connect to midi input <Midi Through Port-0> connect to midi input <MPU-401 UART MIDI> load soundfont </usr/share/mscore-1.2/sound/TimGM6mb.sf2>
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