I want to use the raspberry pi to play audio through the Bluetooth.I google a lot of ways but did not solve the problems I encountered.I use mplayer to play audio, encountered "audio device got stuck" error.
Did you try -ao option?
Perhaps changing audio output driver helps you.
Related
everybody!
I'm trying to connect my raspberry pi 3 bluetooth to my headset. However the sound bug. It's kind of intermittently cutting off quite randomly, which makes it sound terrible.
I'm using the Raspberry 3's built-in bluetooth with Pulseaudio on Raspberry Pi OS V4.19.
How do I fix it?
This sounds like the known issue. You might want to follow some of the issues that are open around this topic:
https://github.com/Arkq/bluez-alsa/issues/60
https://github.com/raspberrypi/linux/issues/1552
https://github.com/balenalabs/balena-sound/issues/62
Im working on project that implements speech recognition on #Raspberry_Pi
I use Bluetooth microphone for audio input and use pulseaudio as driver, but i get low quality sound that make me can't continue further step. Does anyone know how to solve this?
Today I've connected my bluetooth headphones(Ausdom M08) with PC(via bluetooth dongle).
When I open Skype or Discord I hear no sound on youtube, browser and so on. It only works on Skype and Discord - bad sound, not stereo.
I checked in Sounds Options and I have Ausdom M08 Stereo and Ausdom M08 Hands-Free. First one is default device and second one is default communication device.
When I try to force Skype and Discord to use that default device for sound output I hear no sound then, too!
What I tried:
-Disabling Hands Free Telephony, but I lose microphone function then.
-Tried to uninstall drivers and install again. Still the same.
-Disabling enhancements and exclusive controls of devices.
Literally I tried everything I found on internet or that I thought it can be.
Nothing works.
So the question is: How to make my PC output Stereo Sound from my headphones and still to be able to use microphone from it?
Thanks
There are a lot of missing information here: What PC dongle are you using? Which windows version?
From what I can see about the tech specs of Ausdom M08, it supports few basic profile (HSP/HFP/A2DP/AVRCP). A2DP profile lets you hear stereo audio (Ausdom M08 Stereo). HSP/HFP lets you use the microphone to Skype, but audio is limited to 8K-16K Hz sampling rate (Ausdom M08 Hands-Free). You can't use both Bluetooth profiles at the same time.
So to answer you question: You can't have stereo audio from your headphone while having microphone input.
There are proprietary codec developed by Qualcomm called aptX, which may support microphone over A2DP. But, you'll have to make sure both transmitter and receiver supports this codec.
I am building a Bluetooth audio receiver as an embedded system with the CHIP sbc (single board computer) from getchip.com. Pretty similar to Raspberry Pi, runs Debian Jessie, too.
I am using the onboard 3.5mm jack as an audio output. I configured PulseAudio to receive the Bluetooth audio and redirect it to the ALSA sound driver.
Everything works flawlessly except for static noise on the output.
Directly after boot there is a medium loud sum in the few hundred Hz region.
It´s always in the background, even if I play something via bluetooth or locally via CLI.
The interesting part is that it disappears after exactly 10min and 10sec after powerup, so I think exactly 10min after the startup of PulseAudio or ALSA.
I couldn´t find a reason for it.
I tried the tsched=0 fix in /etc/pulse/system.pa
I unloaded the module suspend-on-idle in /etc/pulse/system.pa
And by the way, I´m running PulseAudio in system-mode, as I´m using it as an embedded system and not a multi-user configuration. I hope I get help from you anyway ;-)
Maybe you have an idea where this noise could come from?
It has to be some sort of software configuration issue, otherwise it wouldn´t disappear after exactly 10mins.
I´ll add the PulseAudio and ALSA configuration files later this day.
Thanks in advance!
Fortunately I solved the problem on my own:
The C.H.I.P. from NextThing has a 3.5mm TRRS jack, which does not only output stereo audio but component video as well.
Now if you plug in a standard 3.5mm jack, the ground pin does does interfere with the component video connector.
Thats why there was this humming noise on the audio output. And thats why it disappeared exactly after 10mins, because the screen idle time is 10min, I think.
So I have to admit, that it was indeed not a programming question as it was a connection issue. Thanks anyway for the quick answer!
This has been a plaguing issue for the Raspberry Pi install of Raspbian (Debian Wheezy) since it was first built. Talking directly to the Raspberry Pi foundation and the Raspbian team has given me no luck.
The issue itself is that the DAC doesn't initialize until it starts playing a song. It then will turn itself off when done, causing another pop. When using this for a pure music player it is infuriating to say the least, especially when the pop is loud.
I have heard this on VLC, MOCP and MPD. This has been covered in the Pi forums, but no answers are found: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=38&t=8783
I turn to you at Stack Overflow to see if there is a way to solve this issue. My idea is to initialize it at start-up so the pop only happens when it boots up, though I don't know how to control the ALSA to do that.
Hopefully a solution can be found.
Thanks!
I've experienced the same crackling and popping noises on the Raspberry Pi's analog output when using mpd. The problem is also discussed here: https://github.com/raspberrypi/linux/issues/128
Your idea of configuring the audio hardware to be initialized only once at boot time is exactly what I did to solve the problem. It's possible to do this using the PulseAudio sound system, which works as a proxy between the audio hardware and programs that want to output sound. For example, audio players like mpd can be configured to use PulseAudio as audio backend.
PulseAudio has a configuration option (module-suspend-on-idle) that configures audio hardware sleep. Disabling audio hardware sleep fixed all crackling and popping noises for me.
I've outlined the necessary steps in closer detail on my blog: http://dbader.org/blog/crackle-free-audio-on-the-raspberry-pi-with-mpd-and-pulseaudio
I have the same problem and resolution is to use either USB audio or HDMI audio output (however converting hdmi audio to analog audio is not easy, converter >40$). It is caused by broadcom firmware. They were saying on rpi forum that it is on the list, but no one knows when it will be really fixed ...
Update: I have tried Creative Play! USB audio, it is the same, however the "click" is not that loud. So it is not 100% solution, we have to wait for the fix.
By using the Aureon Dual USB sound card I got zero popping from my raspi. Before I had popping at every song.
I have read that using the Aureon is impossible without limiting the usb ports to version 1.1, but this was not the case for me. It worked out of the box. One slight problem remains, I cannot insert the sound card when the raspi is on, it will reboot. But that's not a problem for me, I never remove the sound card.
My raspi runs raspbian wheezy and plays music via mpd and an nfs share.