No audio during test.speaker.js about tjbot HOT 18 CLOSED

Hi Guys, I faced with the same issue and now it is working property, however only with P2 audio out. I'm case, I realized a issue with PulseAudio and I need to run pulseaudio --start, prior to start TJBot tests

from tjbot.

@sshankarn and @jawetzel

I would recommend you try using the [bluealsa](https://github.com/Arkq/bluez-alsa) library for playing audio over bluetooth instead of pulseaudio. It already comes with the latest version of raspberry OS (Stretch) but can also be installed using sudo apt-get install bluealsa (note you will have to remove pulseaudio).
With bluealsa installed and your bluetooth device connnected, you do have a device id of the form
bluealsa:HCI=hci0,DEV=XX:XX:XX:XX:XX:XX,PROFILE=a2dp , where xx:xx .. is your bluetooth device mac address.
I wrote a short blog on how I got this running here. I tested this on a Raspberry Pi 3 running Stretch.

To get TJBot using this, you would update the device id as follows

var tjConfig = {
    log: {
        level: 'verbose'
    },
    speak: {
    speakerDeviceId: "bluealsa:HCI=hci0,DEV=XX:XX:XX:XX:XX:XX,PROFILE=a2dp" //  add your bluetooth device mac address
  }
};

Hope this helps.

from tjbot.

Hi @MacLEGO

One thing to confirm is if you are able to use aplay to play audio.

aplay -D plughw:0,0 /usr/share/sounds/alsa/Front_Center.wav

Another issue may be that you need to specify your audio device (the plughw:0,0 parameter) when playing audio ... See more about device id here

You can do this when initializing the tjbot library by specifying the speakerDeviceId parameter. For example in test.led.js you can update your tjbot line to

var tj = new TJBot(['led'], {log: {level: 'debug', speakerDeviceId: "plughw:0,0"}}, {});

It is also a known issue that bluetooth can be unstable on the Pi, I'd suggetst you try out using the 3.5mm to microusb audio cable that comes with the anker speaker.

-V.

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THanks for sharing!

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hi i'm new to Raspberry pi,I'm working on TJBOT the error which i always get odule.js:471
throw err;
^

Error: Cannot find module '/home/pi/Desktop/tjbot/bootstrap/test.speaker.js'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:389:7)
at startup (bootstrap_node.js:149:9)
at bootstrap_node.js:502:3
i has clone tjbot folder to my Desktop even the bluetooth speakers are not working plus RGB led gives me the above error.

from tjbot.

I am using a bluetooth speaker - Followed Instructables link for configuring bluetooth and as a result Speaker is working fine / plays music/sound from browser / youtube and other media. Also the, speaker test works fine, and aplay works on my bluetooth speaker as well using commands like speaker-test -t wav -c 6
aplay ~/sample.wav
aplay /usr/share/sounds/alsa/Front_Center.wav)
but not tjbot - is there a specific setting in TJBot library that needs to be tweaked for TTS and STT / conversation.js app

from tjbot.

@sshankarn ,

The right way to specify the speaker device used for playing audio is to set the speakerDeviceId parameter. Do you have your bluetooth speaker listed when you run aplay -l? You can use its device id as the speakerDeviceId parameter.

var tjConfig = {
    log: {
        level: 'verbose'
    },
    speak: {
    speakerDeviceId: "plughw:1,0" // if your bluetooth speaker is listed as card 1, device 0;  
  }
};

// instantiate our TJBot!
var tj = new TJBot(hardware, tjConfig, credentials);

from tjbot.

Thanks @victordibia for the input .

aplay -l does not list any blue tooth speakers in my raspberry pi.

And for bluetooth devices (following these steps for bluetooth speaker for tjbot : https://www.raspberrypi.org/magpi/bluetooth-audio-raspberry-pi-3/) the instructions also lead you to install pulse audio. That implies the PCM becomes pulseaudio.

So I tried the aplay -L and it lists pulse as the name. Here goes the output from aplay -L
pi@raspberrypi:~ $ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Playback/recording through the PulseAudio sound server
sysdefault:CARD=ALSA
bcm2835 ALSA, bcm2835 ALSA
Default Audio Device
dmix:CARD=ALSA,DEV=0
bcm2835 ALSA, bcm2835 ALSA
Direct sample mixing device
dmix:CARD=ALSA,DEV=1
bcm2835 ALSA, bcm2835 IEC958/HDMI
Direct sample mixing device

So I wasnt sure what to put in the place of speakerDeviceID : placeholder in the Tjbot code.

I tried "pulse" and 'pulse' and both did not work.

But fiddling around with aplay (which works / plays in my bluetooth speaker without any --device) - if I tried any other device id, it does not play but if I used
pi@raspberrypi:~ $ aplay --device=pulse ./sample.wav
Playing WAVE './sample.wav' : Unsigned 8 bit, Rate 11025 Hz, Mono

it played in my bluetooth speaker. So it seems like 'pulse' is the device id for aplay but it still does not work with tjbot code. Seem like bluetooth speaker does not follow the norms compared to direct or USB especially with this TJBot code. Any thoughts?

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I seccond sshankarn's issue.

Same exact issue here as well, I believe it is a permissions issue, the app is not allowed to access bluetooth

from tjbot.

  
install.log       Rear_Left.wav     test.led.js       
pi@rose:/Desktop/tjbot/bootstrap/tests $ aplay-D plughw:0,0 Front_Center.wav 
bash: aplay-D: command not found
pi@rose:/Desktop/tjbot/bootstrap/tests $ aplay -D plughw:0,0 Front_Center.wav 
ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card
aplay: main:788: audio open error: No such file or directory
pi@rose:/Desktop/tjbot/bootstrap/tests $ aplay -l
**** List of PLAYBACK Hardware Devices ****
pi@rose:/Desktop/tjbot/bootstrap/tests $ 
pi@rose:/Desktop/tjbot/bootstrap/tests $ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
default

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aplay file.wav worked. it seems this checking script is missing something

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worked here #69

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Hello Team,
I am using a Bluetooth speaker, using that I am able to successfully test the following code:

usr/share/sounds/alsa $ aplay Front_Center.wav 
Playing WAVE 'Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono

But the error while testing test.speaker.js

`sudo node test.speaker.js 
module.js:472
    throw err;
    ^

Error: Cannot find module 'readline-sync'
    at Function.Module._resolveFilename (module.js:470:15)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/pi/Desktop/tjbot/bootstrap/tests/test.speaker.js:19:12)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
    at Function.Module._load (module.js:439:3)
`

Please help to resolve the issue.

from tjbot.

Hi,

The error suggests there is a library that has not been installed - readline-sync.
To install libraries, usually you should run npm install in the current directory (test directory in this case).

-V.

from tjbot.

Hi @victordibia ,
Thank you for your prompt response.
I installed readline-sync and after that I didn't received any error, but no sound.
Then I tried usr/share/sounds/alsa $ aplay Front_Center.wav and no sound.
After few research I found that readline-sync install pulseaudio in the background, which cause the problem I believe. Then I uninstall the pulse audio.

Now usr/share/sounds/alsa $ aplay Front_Center.wav is generating sound and the readline-sync still persist. Please let me know if you have any other alternative solution.

from tjbot.

I can also do "aplay frontCeter.wav" and I hear the sound from my bluetooth speaker.
However, I can't get test.speaker.js to work.
additionally, "aplay -l " returns an empty list, so don't know how to check device id if that is needed.

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also tried the following command in config (for mac address using hciconfig) - still did not work :-( :
var tjConfig = {
log: {
level: 'verbose'
},
speak: {
speakerDeviceId: "bluealsa:HCI=hci0,DEV=XX:XX:XX:XX:XX:XX,PROFILE=a2dp" // add your bluetooth device mac address
}
};

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I had to connect speaker with a USB adaptor, can't get Bluetooth speaker to work. Apparently Bluetooth support of pi is not very robust.

Additionally, Bluetooth connected speaker will not show up in aplay list. But once connected to USB adaptor - it show up just fine.

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