Adjusting output gain for Music Maker
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- ElbyM
- Posts: 24
- Joined: Sun Sep 08, 2019 8:53 am
Adjusting output gain for Music Maker
I have a Music Maker shield playing midi from a file. Output is through a pair of little (about 1 inch in dia) 8ohm 1W speakers. I can barely hear anything, although the output from the headphone jack (through headphone) is plenty loud. Is there any way I can up the gain? Thanks.
- dastels
- Posts: 15831
- Joined: Tue Oct 20, 2015 3:22 pm
Re: Adjusting output gain for Music Maker
Since you are using speakers I assume you have the amplified version of the shield.
You can use the +6dB or +12dB pads to increase amplification as described at the bottom of https://learn.adafruit.com/adafruit-mus ... er/pinouts, but read the caution there. You can also switch to 4 ohm speakers (lower resistance -> more current -> louder sound).
Dave
You can use the +6dB or +12dB pads to increase amplification as described at the bottom of https://learn.adafruit.com/adafruit-mus ... er/pinouts, but read the caution there. You can also switch to 4 ohm speakers (lower resistance -> more current -> louder sound).
Dave
- ElbyM
- Posts: 24
- Joined: Sun Sep 08, 2019 8:53 am
Re: Adjusting output gain for Music Maker
Thanks, Dave! I notice that the Adafruit_VS1053 library has an Adafruit_VS1053::setVolume method. Is this something that would be useful to me? If so, any tips on how I would use it (with SoftwareSerial, which I'm currently using to send MIDI). Thanks again.
Please be positive and constructive with your questions and comments.