Add side stick sound (midi note 37)

[rileychou]

🎵 Summary of Changes

This PR adds the side stick to the UI and modifies the existing sound to sound more like a side stick hitting the side of the drum.

• Combines high pass filter and low pass filter because side stick doesn't have that wide of a frequency range
• Added a second clickEnvelope to add more roundness (? im not sure how to describe it) to the sound. The goal was to make it more echoey and less like 2 wooden blocks hitting each other

🏷️ Type of Change

• 🐛 Bug fix
• 🥁 New drum sound/instrument
• 🎚️ Improvement to existing sound/instrument
• ✨ Feature enhancement
• 📖 Documentation update
• 🔧 Code refactoring
• 🧪 Test improvements
• 🎨 UI/View improvements

💡 Motivation/Reason

After adding the electric snare sound, I wanted to try making a different sound, so I decided to work on the side stick. I also wanted to try adding a sound that isn't on the UI.

🧪 Testing Done

• 🏗️ Built view successfully (npm run build)
• 🎧 Tested with Cmajor: Run patch command
• ✅ No breaking changes to existing functionality
• 🔊 Audio output sounds correct (for audio changes)
• 📱 UI works as expected (for view changes)

🔗 Related Issues

Fixes #31

📝 Additional Notes

Screen.Recording.2025-10-21.at.9.47.20.PM.mov

📋 Checklist

• 📖 I have read the contributing guidelines
• 🌿 My code follows the project conventions
• 💬 I have written clear commit messages
• 🎯 This PR focuses on a single change

[rileychou]

Hi, so I saw that the side stick file was already existing, but it sounded more like a "pew" than what is in the videos I found (video for example), would this be the sound I'm going for?

[lilyvanoekel]

Hi, so I saw that the side stick file was already existing, but it sounded more like a "pew" than what is in the videos I found (video for example), would this be the sound I'm going for?

hi @rileychou ! Sorry for the confusion here! The side stick implementation currently in Percupuff is only a placeholder. I used it to document how to add a new sound to the synthesizer, but did not try to model it to sound after anything in particular.

The video you linked is probably what we would want the side stick sound in Percupuff to sound like as well. So feel free to use that as a reference!

[lilyvanoekel]

we have to be a little bit careful here, adding additional instruments kind of breaks the layout currently. My idea was for these PRs to only focus on adding the sound and parameters needed, and worry about how to add them in the instrument selector later when we have a few more sounds to add.

[lilyvanoekel]

I wonder if we might want this sound to be a bit more "realistic" one thing we could try is to start with the analog snare sound, and see if we can make it sound "lighter" somehow to more resemble the sound from the video.

[rileychou]

Hi, so I saw that the side stick file was already existing, but it sounded more like a "pew" than what is in the videos I found (video for example), would this be the sound I'm going for?

hi @rileychou ! Sorry for the confusion here! The side stick implementation currently in Percupuff is only a placeholder. I used it to document how to add a new sound to the synthesizer, but did not try to model it to sound after anything in particular.

The video you linked is probably what we would want the side stick sound in Percupuff to sound like as well. So feel free to use that as a reference!

Thanks, should I keep a copy of the original side stick if there's a copy in the readme?

[rileychou]

@lilyvanoekel I'm running into a problem where for some reason the notch filter isn't getting applied to my SideStick.cmajor file, even though the code is identical to the snare code i modified (as shown in the screen recording). The only differences are the input params names but those are set to the same numbers in Params.cmajor. As a result, it doesn't have the noise that i achieved when i tried playing around with the snare. Do you know why that might be happening? I pushed my latest code that's having this problem

I removed it from the top part of the UI btw, now I just access the sound from the keyboard

**EDIT: I realized it's because I forgot to update Percupuff.cmajor to connect noise to the side stick. This is no longer happening since I've updated my code.

freecompress-Screen.Recording.2025-10-22.at.9.39.20.PM.mp4

[lilyvanoekel]

@rileychou sorry for the delay, I'll have a look at this and your other PR over the weekend!

[lilyvanoekel]

Sounds great, thanks @rileychou !