Pocket sphinx wake word only works occasionally

aaron57 · February 13, 2021, 2:23pm

Sorry if this issue as been dealt with before, but I am having trouble with the wake word. I am on ubuntu 16.04 and 20.04 using pocket sphinx as the listener and Hey Mycroft as the wake word. Every thing else seems to be okay. It only works very occasionally and I am wondering if there is a way of changing the accuracy so that it accepts my voice better.
Thanks.
This is a great project, but quite tricky.
Aaron

goldyfruit · February 13, 2021, 3:57pm

You could try to adjust the threshold option: https://mycroft-ai.gitbook.io/docs/using-mycroft-ai/customizations/wake-word#other-settings

baconator · February 13, 2021, 8:16pm

You’re also far better off getting a custom precise word trained than suffering through with pocketsphinx in the long run.

aaron57 · February 15, 2021, 9:29am

Do you mean I should go back to precise and train the machine somehow?
Can you point me to instructions please,
And thank you

goldyfruit · February 15, 2021, 2:30pm

https://mycroft-ai.gitbook.io/docs/using-mycroft-ai/customizations/wake-word

aaron57 · February 16, 2021, 10:14am

I’m very lost here.
If I run ‘grep avx /proc/cpuinfo’ I get no response which means I cannot use precise for the wake word. is that right?
Here is the relevant section in my mycroct conf file (I think).

// Hotword configurations

“hotwords”: {*
“hey mycroft”: {*
```
   "module": "precise",*
```

   "phonemes": "HH EY . M AY K R AO F T",*

```
   "threshold": 1e-90,*
```
```
   "lang": "en-us"*
```
```
   // Specify custom model via:*
```

   // "local_model_file": "~/.mycroft/precise/models/something.pb"*

```
   // Precise options:*
```

   // "sensitivity": 0.5,  // Higher = more sensitive*

   // "trigger_level": 3   // Higher = more delay & less sensitive*

```
   },*
```
“wake up”: {*
```
   "module": "pocketsphinx",*
```

   "phonemes": "HH EY . M AY K R AO F T",*

```
   "threshold": 1e-10,*
```
```
   "lang": "en-us"*
```
```
   }*
```
},*
how do I edit it so it makes pocket sphinx more responsive?
Thanks

goldyfruit · February 16, 2021, 2:04pm

Do you have asimd instruction?
I’ve a RPi 4 which doesn’t have the avx instruction set and I’m using Precise.

Please use the code ( ) when you paste code

aaron57 · February 17, 2021, 6:57pm

Ooops, sorry about the code.
What is asmid instruction, how do I find out if I have it and how does it help?

goldyfruit · February 17, 2021, 7:08pm

Same as for the avx instruction.
asimd instruction is similar to avx but for ARM architecture.

aaron57 · February 18, 2021, 2:30pm

I run `grep asimd /proc/cpuinfo and I get nothing in return, so I assume I have to stick with pocket sphinx. Is there any way to get it to work better. I spend half my life saying ‘hey mycroft’ with no result
I tried to put the code in </> but I’m not sure it worked.
Thanks

goldyfruit · February 18, 2021, 2:31pm

What is your hardware?

aaron57 · February 18, 2021, 2:35pm

I’m on a Dell inspiron laptop running ubuntu 16.04

goldyfruit · February 18, 2021, 7:22pm

Which model, which CPU?

aaron57 · February 20, 2021, 8:32pm

Dell Inspiron 15
5000 series
Intel® Pentium® CPU 4415U @ 2.30GHz × 4
3.8 GiB
Thanks