izebra_projects/rotary-phone-audio-guestbook
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update README.md (#6)

Browse Source 
Add Troubleshooting section
This commit is contained in:
Nick Pourazima 2023-08-15 10:55:01 -04:00 committed by GitHub
parent 2197e83725
commit 903ccb91e5
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 36 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
README.md
View File

@ -18,6 +18,7 @@
- [audioGuestBook systemctl service](#audioguestbook-systemctl-service) - [audioGuestBook systemctl service](#audioguestbook-systemctl-service)
- [Operation Mode 1: audioGuestBook](#operation-mode-1-audioguestbook) - [Operation Mode 1: audioGuestBook](#operation-mode-1-audioguestbook)
- [Operation Mode 2: audioGuestBookwithRotaryDialer](#operation-mode-2-audioguestbookwithrotarydialer) - [Operation Mode 2: audioGuestBookwithRotaryDialer](#operation-mode-2-audioguestbookwithrotarydialer)
- [Troubleshooting](#troubleshooting)
This project transforms a rotary phone into a voice recorder for use at special events (i.e. wedding audio guestbook, etc.). This project transforms a rotary phone into a voice recorder for use at special events (i.e. wedding audio guestbook, etc.).
@ -141,7 +142,7 @@ To replace:
### [Config](config.yaml) ### [Config](config.yaml)
- This file allows you to customize your own set up (edit rpi pins, audio reduction, alsa mapping, etc), modify the yaml as necessary. - This file allows you to customize your own set up (edit rpi pins, audio reduction, alsa mapping, etc), modify the yaml as necessary.
- Ensure the sample rate is supported by your audio interface (default = 44100 Hz (decimal not required))
- For GPIO mapping, refer to the wiring diagram specific to your rpi: - For GPIO mapping, refer to the wiring diagram specific to your rpi:
![image](images/rpi_GPIO.png) ![image](images/rpi_GPIO.png)
@ -179,3 +180,37 @@ systemctl start audioGuestBook.service
- The idea was to playback special messages when particular users dial a certain number combination (i.e. 909 would play back a message for certain guests who lived with the groom in that area code). - The idea was to playback special messages when particular users dial a certain number combination (i.e. 909 would play back a message for certain guests who lived with the groom in that area code).
- In this mode of operation the users will need to dial 0 on the rotary dialer in order to initiate the voicemail. - In this mode of operation the users will need to dial 0 on the rotary dialer in order to initiate the voicemail.
- The rotary dialer is a bit more complex to set up, you need a pull up resistor connected between the F screw terminal and 5V on the rpi and the other end on GPIO 23. #TODO: Diagram - The rotary dialer is a bit more complex to set up, you need a pull up resistor connected between the F screw terminal and 5V on the rpi and the other end on GPIO 23. #TODO: Diagram
## Troubleshooting
### Verify default audio interface
A few users had issues where audio I/O was defaulting to HDMI. To alleviate this, check the following:
#### Check the Sound Card Configuration:
Verify the available sound devices using the following command:
```bash
aplay -l
```
_Ensure that your USB audio interface is listed and note the card and device numbers._
#### Set the Default Sound Card:
If you want to route audio through your USB audio interface, you'll need to make it the default sound card.
Edit the ALSA configuration file (usually located at `/etc/asound.conf` or `~/.asoundrc`) and add the following:
```bash
defaults.pcm.card X
defaults.ctl.card X
```
_Replace X with the card number of your USB audio interface obtained from the previous step._
#### Restart ALSA
```bash
sudo /etc/init.d/alsa-utils restart
```