A grand piano with no samples: hammer, strings and wood | Built from Physics 2

Try this lesson in your browser, free beta, nothing to install: https://synthmaker.com/app/learn/phys... It's a Pro lesson, free during the beta. Try SynthMaker free on iPhone and Mac (public beta): https://testflight.apple.com/join/BKE... No samples: in SynthMaker on Mac we build a grand piano from its physics, one idea at a time, hearing each one. A felt hammer is simulated hitting the string (its felt stiffens as it's squashed, so loud notes come out brighter by themselves). One flexible string, then stiff steel with its stretched, bell-like harmonics, then three slightly detuned strings per key that beat and leave a long aftersound. Then the spruce soundboard, hundreds of short wooden resonances, each key in its place across the stereo field, the knock of the frame and keybed, the sustain pedal's sympathetic strings, and a concert hall. It ends with the piano played by a small performer that shapes dynamics, voicing and timing the way pianists do. This episode is also a lesson inside the app (Help › Lessons on Mac): the app builds it live while you watch. Your piano is saved in the library as My Physics Piano; Concert Grand, Upright Piano and Felt Piano are there too. Chapters 0:00 Intro 0:19 The hammer 0:49 A string 1:14 Stiff steel 1:49 Three strings 2:21 The soundboard 2:50 Where the keys are 3:02 The knock 3:23 Touch 3:45 The pedal 3:55 A hall 3:58 Played 5:03 That's it Talk to us SynthMaker is a small, one-person project, and your feedback shapes it. • In the app: open Community (gear › Community on iPhone, the Community button on Mac). "Ask the developer" puts your question straight to me, with answers public for everyone, and there's a live chat with other SynthMaker users. Reading needs no account; to post, join with Sign in with Apple. • Discord, to share what you make and chat:   / discord   • Patreon, if you'd like to support the project:   / synthmaker   • X: https://x.com/SynthMakerApp • Subscribe for more Built from Physics episodes, Drums episodes, Generative episodes, Sound labs and Build-alongs:    / @synthmaker   More videos • Build-along 1: one sine wave to a squelchy acid bass:    • One sine wave to a squelchy acid bass: bui...   • Sound lab 2: two sine waves make an 80s electric piano:    • Two sine waves make an 80s electric piano:...   • Built from Physics 1: pluck a guitar string out of noise:    • Pluck a real guitar string out of noise | ...   • Drums 1: a 909 kit from scratch:    • Build a 909 drum kit from scratch, no samp...   • Generative 2: three loops that never line up:    • Three loops that never line up: melodic ho...   SynthMaker runs on iOS 26 and macOS 26 (the AI features need 27). Further reading: Chaigne & Askenfelt, "Numerical simulations of piano strings" (JASA, 1994); Weinreich, "Coupled piano strings" (JASA, 1977); Bank, Välimäki et al., "Physics-based sound synthesis of the piano" (2003); Friberg, Bresin & Sundberg, "Overview of the KTH rule system for musical performance" (2006). Narrated by an AI voice (ElevenLabs). Everything you hear from the synth is SynthMaker itself. SynthMaker is developed with the help of AI coding tools. #piano #physicalmodeling #sounddesign #synth #grandpiano