{"schemaVersion":1,"record":{"key":"mechanic/phone-microphone--family-device","type":"mechanic","id":"phone-microphone--family-device","lang":"en","title":"Contact with the phone and microphone","summary":"In a design scenario, tapping or touching the case creates a microphone impulse. A rule maps that signal to an action.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/phone-microphone--family-device/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-microphone--family-device.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/phone-microphone--family-device.md","aliases":[],"tags":["Phone microphone interactions","Mechanics catalog"],"sourceIds":["source-e660d296156bdfcf","source-3cd3d0111315b387","source-05406165a9082e0a"],"sources":[{"id":"source-e660d296156bdfcf","title":"CMU: TapSense","url":"https://hcii.cmu.edu/hcii-impacts/tapsense","verifiedAt":null},{"id":"source-3cd3d0111315b387","title":"CMU/Disney: Acoustruments","url":"https://www.cmu.edu/news/stories/archives/2015/april/acoustruments-for-handheld-devices.html","verifiedAt":null},{"id":"source-05406165a9082e0a","title":"Scream Go Hero","url":"https://apps.apple.com/us/app/scream-go-hero/id1212039074?uo=4","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"The case, grip, hole placement, and entry treatment make a big difference in the outcome. Special accessories are listed separately."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-device-variants\"></a>\n\n- Covering the microphone. Signal: Change in level and spectrum when overlapped. Application: Close the game “window”, hide the signal, turn on the silence mode. Access level: D. <a id=\"variant-mic-073\"></a>\n- Cover and release. Signal: Sequence of spectrum changes. Application: Operate an acoustic valve or transmit a code. Access level: D. <a id=\"variant-mic-074\"></a>\n- Touching near the microphone. Signal: Contact impulse through the housing. Application: Get an additional button on the edge of the device after calibration. Access level: D. <a id=\"variant-mic-075\"></a>\n- Knocking on different parts of the body. Signal: Difference in acoustic responses. Application: Divide the cover and side into two game actions. Access level: R. <a id=\"variant-mic-076\"></a>\n- Screen touch type. Signal: Distinction between pad, nail, knuckle. Application: Associate a light action with a finger, a heavy action with a knuckle; need touch input. Access level: D. <a id=\"variant-mic-077\"></a>\n- Body friction. Signal: Noise and its time profile. Application: “Stroke” a game creature or warm up a virtual object. Access level: D. <a id=\"variant-mic-078\"></a>\n- Phone on the surface. Signal: Change in transmitted vibrations and response. Application: Convert a table into a gaming surface after customizing a specific device. Access level: R. <a id=\"variant-mic-079\"></a>\n- Passive acoustic accessory. Signal: Channel response between speaker and microphone. Application: Add a tube, valve or nozzle with a game regulator. Access level: R. <a id=\"variant-mic-080\"></a>"},{"id":"context","title":"Context and limits","body":"Author's design map for mobile games and interactive applications. 144 techniques in 18 groups, including basic signals, rules and combinations. Applications are design ideas and not a list of released games."}],"relations":[],"placements":[{"catalogId":"phone-microphone","id":"family-device","title":"Phone microphone interactions","url":"https://gamemechanics.pro/en/mechanics/phone-microphone/#family-device","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Contact with the phone and microphone","description":"In a design scenario, tapping or touching the case creates a microphone impulse. A rule maps that signal to an action.","image":{"src":"images/mechanics/sensor-scream-go-0.webp","width":810,"height":1440,"game":"Scream Go Hero","sourceUrl":"https://apps.apple.com/us/app/scream-go-hero/id1212039074?uo=4","originalUrl":"https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/55/be/ca/55becae8-2635-2e86-cea6-491bb90c2418/mzl.erwphtle.jpg/1280x1440bb.jpg","credit":"Ketchapp","rights":"© Ketchapp. Developer-distributed App Store screenshot. All rights reserved; excluded from MIT and CC BY 4.0.","caption":"Scream Go Hero: an example of input-level control","alt":"Scream Go Hero: an example of input-level control","markers":[{"x":65,"y":50,"label":"Voice level controls the jump between platforms"}]},"tips":["Do not present contact noise as a precise force measurement."],"examples":[{"title":"Scream Go Hero","url":"https://apps.apple.com/us/app/scream-go-hero/id1212039074?uo=4"}]}},"endsAt":null,"provenance":"Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review.","license":"CC-BY-4.0","codeLicense":"MIT","attribution":"gamemechanics.pro contributors","catalogKey":"catalog/phone-microphone"}}