YYサイレンアラート vs Sign Motion

■「YYサイレンアラート」はこんな方にオススメです ・「サイレン音」が聞き取りづらい方 ・周囲の音の大きさが気になる方 ・周囲の音の情報を可視化したい方 ■検出できる音 ・表示と振動でお知らせする音 　サイレン、救急車、消防車、パトカー、車のクラクション、自転車のベル、火災報知器、インターフォン ・表示のみでお知らせする音 　話し声、歌声、音楽、悲鳴、叫び声、ガラスなどが割れる音、楽器（ギター、ドラム、ピアノ） ※本アプリは、端末のマイクを使って「サイレン音」などを判別します。 　検出できない場合があったり、誤って検出する場合があります。 　周囲の環境を目視確認するようにしてください。

Sign Motion displays your face, upper body and fingers as a 2D avatar with clear expressions on a gray background. • Choose a cat, tiger, rabbit, chimpanzee, dog or either of two portrait avatars above Record • See blinks, winks, gaze, eyebrows, cheeks and mouth movements on the avatar face • See shaded hands and arms, clear finger boundaries and a white T-shirt • Start in Skeleton only, or choose Camera + Skeleton in Settings • Record the rendered avatar as an MP4, then save to Photos or share • Import a video you select from Photos, add multiple captions and trim it • Set each caption's start and end times, text color, size and position Caption times refer to the original video. Trimming retains only overlapping caption intervals. Editing exports a copy and preserves the original video and its audio. Imported videos keep their original footage; the app does not turn them into avatars. Tracking runs on your iPhone or iPad without an account. Camera images and tracking results are not sent to a server. Avatar recordings contain no camera footage. Microphone recording is off by default; enable it in Settings to include audio. Permissions are requested when needed. Saved videos remain in the app until you delete them; exported copies must be deleted separately. Choose 30 fps or 60 fps camera capture. Face, upper-body and hand positions in the image and facial expressions are estimated on your device. Avatar recordings use 720 × 1280 and a 60 fps setting; capture, tracking and display run at separate rates, and videos may reuse the previous pose. Use good lighting and keep your face, shoulders and both hands visible. Fast movement, occlusion and low light can reduce accuracy. Facial movements are estimates, not emotion recognition. The app visualizes movement. It does not classify or translate sign language or perform medical measurements. Requires iOS or iPadOS 18 or later.