Name: MIDI Synthesizer Unit (SAM2695)
Brand: m5stack-store
SKU: U178
Price: 12.95 USD
Availability: InStock

MIDI Synthesizer Unit (SAM2695)

SKU:U178

$12.95

10+ In Stock

Quantity

Shipping calculated at checkout.

Description

Synth Unit is an audio module designed specifically for MIDI sound systems. This unit features the built-in SAM2695 audio synthesizer and accepts standard MIDI signals through serial communication. It provides various audio synthesis and processing capabilities, including audio synthesis, mixing, and sound effects processing. It is suitable for applications such as live performances, music production studios, electronic music stages, and STEAM education.

Synth Unit offers many distinctive features, including multi-channel instrument sound output and parameter adjustments such as four-stage EQ and reverb. By configuring multi-channel instrument sound output, it allows the simultaneous generation of multiple tones, creating rich musical effects. The four-stage EQ and reverb parameters enable precise adjustment of audio timbre and spatial perception according to personal preferences and requirements.

To ensure clear and excellent audio output, the Synth Unit is equipped with the high-performance NS4150B Class D amplifier chip. Whether you need clear audio feedback during live performances or high-quality audio output in the music production process, the Synth Unit is capable of meeting these demands.

Features

SAM2695 audio synthesis chip
Serial port communication
Class D amplifier
MIDI Standard Protocol
Supports the configuration of multi-channel instrument source output
Support four EQ, reverberation and other parameters adjustment
Programming environment: Arduino, UIFlow, etc

Includes

1x Synth Unit
1x Grove Cable（20cm）

Applications

Improvisation
Music production studio
Electronic music stage
STEAM education

Specification

Resources	Parameters
Audio synthesizer chip	SAM2695
Power amplifier chip	NS4150B
Sound standard protocol	MIDI
Speaker	8Ω@1W
Operating temperature	0-40°C
Product Size	482416mm
Package Size	136* 92*13mm
Product Weight	10g
Package Weight	15.4g

LEARN AND DOCUMENTS

DOCUMENTS

Amazing MIDI Synth for the price

It's hard to believe you can buy a General MIDI synthesizer for just $12.50. The MicroBlocks team plans to use these for a music coding class at FOSDEM in Feb 2025. The built in speaker is quite audible although, of course, you don't get much bass. I wish there there was an audio output jack but for the price, I'm not compaining!

Excellent!

I bought three of these and have just ordered two more. Both the synth chip and the audio chip exceed my needs and expectations. The GM synth chip responds properly to all the sysex and MIDI messages I send it and the wave table voices are as good as any GM synth I have heard. The audio quality is excellent and more that sufficient for audiophile headsets and small practice speakers. The only limitation is the included piezo speaker which has extremely limited fidelity and volume. But it is connected with a 2mm pin header so it's easily eliminated and replaced with an audio jack for headphones, small speaker or connection to an external amp and speakers. The 4150B audio chip output is rated at 2 w @ 4 ohms, so is sufficient for any of these. I build and modify specialized MIDI controllers, particularly wind controllers and chromatic accordion button keyboards. These are useful for students learning and as practice instruments for musicians as well as useful for rehearsals. I was delighted to find these M5Stack available. Thanks, Aaron

Hi Aaron, thank you so much for your detailed feedback! It’s great to know that they’re fitting so well into your projects. We appreciate your insight about the piezo speaker—it's helpful for us and other customers. Thanks again for your support!

MIDI Synth Worked Great in my Laser Harp

I needed a module based on the SAM2695 so I decided to take a chance and buy the MIDI Synthesizer Unit from M5. It was the least expensive module I could find along with the most feature packed. I designed and built a Laser Harp which has the synth unit built in. You can check out the build at: http://craigandheather.net/celelaserharp.html
The module really works well and I would recommend it to everyone.

What I would like to see is a different version of this module without the amp and speaker with an 1/8" jax to route the output audio into an external amplifier.

Hi Craig, the piezo speaker is connected via a 2mm pin header and is easily replaced with an audio jack. And about the version with audio jack, you can have a check with our new product MIDI Unit (U187). Thanks!

Fantastic synthesizer unit

I was very surprised at the number of unique “instruments” and sounds that this unit provides. The documentation on M5Stack was somewhat lacking but the data sheet provided enough info to get this unit programmed. I found UIFlow wasn’t very helpful in programming this synthesizer and much more could be done by M5 to help basic “programmers” like myself, particularly as I am trying to introduce my grandson to graphical programming. All this said, this unit has a lot of potential.

Hi Steve, full MIDI implementation charts are included in the SAM2695 data sheet but unfortunately it is below many pages of physical and electrical data. And altho the SAM2695 implements the full range of GM MIDI messages and sysexes, the patches or voices are not editable. This is common in many GM synths. Thx!