No audio output - An error occured while using the portaudio output stream

[Lhotse]

Hi I'm unable to get any audio output. I'm using the following version of dsd on Ubuntu 22.04.

Digital Speech Decoder 1.7.0-dev (build:v1.6.0-96-g59423fa)
mbelib version 1.3.0

I used the following command to start dsd.

socat stdout udp-listen:7355 | padsp dsd -o pa:6 -i -

It decodes the packets but as soon as it starts to stream the audio output there is an error.

Sync:  +DMR       mod: GFSK inlvl: 16% [SLOT0]  slot1   VOICE e:
Syncing voice output stream
An error occured while using the portaudio output stream
Error number: -9983
Error message: Stream is stopped

I get the same result with default device (Bluetooth headphones) and also when default device is the soundcard output. I've also tried another pair of wireless headphones. None work and all get the same error.

--------------------------------------- device #6
Name = sysdefault
Host API = ALSA
Max inputs = 128, Max outputs = 128
Default sample rate = 48000.00

--------------------------------------- device #1
Name = Logitech G933 Gaming Wireless H: USB Audio (hw:1,0)
Host API = ALSA
Max inputs = 1, Max outputs = 2
Default sample rate = 44100.00

Am I doing something wrong? Any idea how I could fix this problem. Thanks for your time.

[stefan-kuepper]

Hi,
I think you should remove the "-o pa:6" part so dsd will use the default OSS output which padsp emulates.
Thanks to your issue I learned about padsp and it works for me while any of the pa: outputs failed exactly like yours. Maybe our systems can not play the audio sample rate dsd uses (8kHz).

[kala13x]

@stefan-kuepper removing the output device argument as you suggested causes dsd to use default audio device /dev/audio which is no longer supported on modern Linux distributions and causes an error "Error, couldn't open /dev/audio"