{"course":{"slug":"visual-storytelling","title":"Making It Say Something","url":"https://addaly.com/learn/visual-storytelling","level":"beginner","track":"create"},"lesson":{"slug":"sound-off-and-silent-meaning","title":"It has to work silent and reward being unmuted","url":"https://addaly.com/learn/visual-storytelling/sound-off-and-silent-meaning","position":53,"of":64,"minutes":9,"answer":"Autoplay is muted by policy, so sound-on is an earned state (the silent version must carry the whole meaning and the sound must add something different).","keyIdea":"Autoplay is muted by policy, so sound-on is an earned state (the silent version must carry the whole meaning and the sound must add something different), and a phone speaker reproduces almost nothing below about 300 Hz, so any effect you built from low frequencies is not there."},"body":{"format":"markdown","text":"## Why muted is the default, mechanically\n\nBrowsers and apps block audio that starts without a user action. This is not a stylistic preference of platform designers; it is a policy adopted after autoplaying sound became the most complained-about behaviour on the web, and it is now enforced at the level of the browser's media engine. Audio requires a gesture: a tap, a click, an unmute.\n\nThe consequence is structural. **Sound-on is an earned state, not a starting condition.** Your piece begins silent, for everybody, every time, and the sound arrives only if something in the silent version persuaded someone to reach for it.\n\nOn top of that, a large share of viewing happens where sound is socially impossible: an office, a class, a shared room, a bus, next to a sleeping child.\n\n## The double build\n\nThe design rule follows directly and it is not \"put captions on it\". It is:\n\n1. **The silent version must carry the whole meaning.** Not a hint of it: the whole thing. If the piece is unintelligible without audio, it is unintelligible.\n2. **The sound version must add something**, or being unmuted was a waste of the viewer's decision.\n\nMost work fails one or the other. A narration-driven film with subtitles bolted on fails the first: it is readable rather than watchable, because the meaning lives in words the viewer is now having to read while also looking at a picture. A silent-first piece built entirely from on-screen text fails the second: unmuting adds a music bed and nothing else, and the viewer has learned there is no reason to do it again.\n\nThe pieces that work put **different information in each channel**. The picture and on-screen text carry the argument. The sound carries texture, presence, rhythm, and the moments that only exist as sound: the machine starting, the room's noise stopping, somebody laughing mid-sentence.\n\n## The phone speaker throws away your bass\n\nHere is the specific technical fact that ruins more mixes than any other. A phone's built-in speaker is a few millimetres across, and a driver that small cannot move enough air to reproduce low frequencies. In practice, output falls away sharply below roughly 500 Hz to 1 kHz, and there is effectively nothing under about 300 Hz.\n\n> Figure: What a phone speaker returns of what you mixed. Bars (%): Below 200 Hz 2; Around 300 Hz 9; Around 500 Hz 35; At 1 kHz 100. A driver a few millimetres across cannot move enough air to carry low frequencies. The rumble, the heartbeat and the warmth in a close male voice are not quietly reduced on a phone; they are absent.\n\nSo:\n\n- A music bed whose weight is in the bass is, on a phone, a thin scratchy version of itself.\n- A male voice recorded warm and close, with the low end that makes it sound rich on headphones, loses that body entirely and can end up sounding weaker than a thinner recording would have.\n- A rumble, a heartbeat, a low drone: inaudible. The dramatic effect you mixed is not there.\n\nThe fix is not clever processing. It is **checking on a phone speaker**, held at arm's length, in a room with other noise in it. Free tools do the rest: Audacity for a high-pass filter to clear out energy nobody will hear anyway, and any editor's loudness meter to keep the level consistent.\n\n## Loudness, and why your piece is quieter than the next one\n\nPlatforms normalise loudness, measured in LUFS, so that one video is not dramatically louder than another. Targets vary and change, commonly landing somewhere around -14 LUFS for streaming. A piece mastered much louder gets turned down, and everything you crushed to make it loud stays crushed: you lose the dynamics and gain nothing.\n\nA piece mastered much quieter gets turned up, which is usually fine, but a piece with a quiet voice and loud music gets normalised as a whole and the voice stays buried.\n\nThe practical rule: **mix the voice to sit clearly above everything else, and leave the overall loudness alone.** The platform will handle the rest, and the one thing it cannot fix is a balance problem inside your mix.\n\n## The first second, silent\n\nThe opening has to answer *what is this and is it for me* with the sound off. That means motion, a face, a legible few words, or a striking frame: something that works as a picture.\n\nA common and avoidable failure is opening on a person starting to speak. Silent, that is a stranger moving their mouth: no information, and the viewer leaves before the sentence that would have hooked them finishes.\n\n## The limitation\n\nDesigning for silence pushes work towards on-screen text, and on-screen text competes with the picture for the same eyes. A viewer reading cannot simultaneously study the image, and a piece that solves silence by covering itself in text has traded one failure for another.\n\nThe resolution is a matter of sequencing rather than volume: put text where the picture is simple, and let the picture carry the moments that need looking at. That is an editing decision made at the structure stage, which is why sound-off design belongs at the planning table and not at the export dialogue."},"check":{"question":"A film-maker mixes a warm, bass-heavy voiceover that sounds rich on headphones. Why does it sound weak on a phone?","options":[{"text":"Platform loudness normalisation reduces the overall level, which removes the perceived weight of the low frequencies.","correct":false,"tempting":"Normalisation changes level uniformly, so it cannot selectively remove the low end that gives the voice its body."},{"text":"Compressed audio codecs discard low frequencies first because they carry less perceptual information.","correct":false,"tempting":"Reverses how perceptual codecs allocate bits; they generally preserve low frequencies, which are cheap to encode and perceptually prominent."},{"text":"Phone speakers are tuned to emphasise speech frequencies, so a deliberately deep voice sits outside the range they boost and is pushed behind the music.","correct":false,"tempting":"Identifies real speech-range tuning but treats the bass as merely de-emphasised, when the driver cannot produce those frequencies at all."},{"text":"A speaker a few millimetres across cannot move enough air to reproduce low frequencies, so the warmth is simply not produced.","correct":true}]},"prev":{"slug":"the-first-frame-is-a-still","title":"The still is what recruits the play","url":"https://addaly.com/learn/visual-storytelling/the-first-frame-is-a-still"},"next":{"slug":"the-feed-is-the-context","title":"Nothing is ever seen on a white wall","url":"https://addaly.com/learn/visual-storytelling/the-feed-is-the-context"},"authorship":"Founder and series editor: Dr Mustafa Mun. Written by AI models to a written standard. Exam keys checked blind by a second model: 3,665 of 3,666 agreed. Academic review invited.","review":{"status":"Draft, open for academic review"},"cite":"Addaly (2026) 'It has to work silent and reward being unmuted', in Making It Say Something. Edited by M. Mun. Addaly. Available at: https://addaly.com/learn/visual-storytelling/sound-off-and-silent-meaning (Accessed: 13 October 2026).","licence":{"name":"CC BY-NC-SA 4.0","url":"https://creativecommons.org/licenses/by-nc-sa/4.0/"},"reader":{"schema":1,"title":"It has to work silent and reward being unmuted","courseTitle":"Making It Say Something","module":{"index":7,"slug":"surface-and-distribution","title":"The surface and the system carrying it"},"answer":null,"keyIdea":"Autoplay is muted by policy, so sound-on is an earned state (the silent version must carry the whole meaning and the sound must add something different), and a phone speaker reproduces almost nothing below about 300 Hz, so any effect you built from low frequencies is not there.","hero":{"kind":"figure","figure":{"t":"figure","label":"Figure","figure":{"type":"bars","unit":"%","title":"What a phone speaker returns of what you mixed","series":[{"label":"Below 200 Hz","value":2,"highlight":true},{"label":"Around 300 Hz","value":9,"highlight":true},{"label":"Around 500 Hz","value":35},{"label":"At 1 kHz","value":100}],"caption":"A driver a few millimetres across cannot move enough air to carry low frequencies. The rumble, the heartbeat and the warmth in a close male voice are not quietly reduced on a phone; they are absent."},"alt":"Figure: What a phone speaker returns of what you mixed. Bars (%): Below 200 Hz 2; Around 300 Hz 9; Around 500 Hz 35; At 1 kHz 100. A driver a few millimetres across cannot move enough air to carry low frequencies. The rumble, the heartbeat and the warmth in a close male voice are not quietly reduced on a phone; they are absent."}},"blocks":[{"t":"h2","id":"why-muted-is-the-default-mechanically","runs":[{"text":"Why muted is the default, mechanically"}]},{"t":"p","runs":[{"text":"Browsers and apps block audio that starts without a user action. This is not a stylistic preference of platform designers; it is a policy adopted after autoplaying sound became the most complained-about behaviour on the web, and it is now enforced at the level of the browser’s media engine. Audio requires a gesture: a tap, a click, an unmute."}]},{"t":"p","runs":[{"text":"The consequence is structural. "},{"text":"Sound-on is an earned state, not a starting condition.","b":true},{"text":" Your piece begins silent, for everybody, every time, and the sound arrives only if something in the silent version persuaded someone to reach for it."}]},{"t":"p","runs":[{"text":"On top of that, a large share of viewing happens where sound is socially impossible: an office, a class, a shared room, a bus, next to a sleeping child."}]},{"t":"h2","id":"the-double-build","runs":[{"text":"The double build"}]},{"t":"p","runs":[{"text":"The design rule follows directly and it is not “put captions on it”. It is:"}]},{"t":"ol","start":1,"items":[[{"text":"The silent version must carry the whole meaning.","b":true},{"text":" Not a hint of it: the whole thing. If the piece is unintelligible without audio, it is unintelligible."}],[{"text":"The sound version must add something","b":true},{"text":", or being unmuted was a waste of the viewer’s decision."}]]},{"t":"p","runs":[{"text":"Most work fails one or the other. A narration-driven film with subtitles bolted on fails the first: it is readable rather than watchable, because the meaning lives in words the viewer is now having to read while also looking at a picture. A silent-first piece built entirely from on-screen text fails the second: unmuting adds a music bed and nothing else, and the viewer has learned there is no reason to do it again."}]},{"t":"p","runs":[{"text":"The pieces that work put "},{"text":"different information in each channel","b":true},{"text":". The picture and on-screen text carry the argument. The sound carries texture, presence, rhythm, and the moments that only exist as sound: the machine starting, the room’s noise stopping, somebody laughing mid-sentence."}]},{"t":"h2","id":"the-phone-speaker-throws-away-your-bass","runs":[{"text":"The phone speaker throws away your bass"}]},{"t":"p","runs":[{"text":"Here is the specific technical fact that ruins more mixes than any other. A phone’s built-in speaker is a few millimetres across, and a driver that small cannot move enough air to reproduce low frequencies. In practice, output falls away sharply below roughly 500 Hz to 1 kHz, and there is effectively nothing under about 300 Hz."}]},{"t":"p","runs":[{"text":"So:"}]},{"t":"ul","items":[[{"text":"A music bed whose weight is in the bass is, on a phone, a thin scratchy version of itself."}],[{"text":"A male voice recorded warm and close, with the low end that makes it sound rich on headphones, loses that body entirely and can end up sounding weaker than a thinner recording would have."}],[{"text":"A rumble, a heartbeat, a low drone: inaudible. The dramatic effect you mixed is not there."}]]},{"t":"p","runs":[{"text":"The fix is not clever processing. It is "},{"text":"checking on a phone speaker","b":true},{"text":", held at arm’s length, in a room with other noise in it. Free tools do the rest: Audacity for a high-pass filter to clear out energy nobody will hear anyway, and any editor’s loudness meter to keep the level consistent."}]},{"t":"h2","id":"loudness-and-why-your-piece-is-quieter-than-the-next-one","runs":[{"text":"Loudness, and why your piece is quieter than the next one"}]},{"t":"p","runs":[{"text":"Platforms normalise loudness, measured in LUFS, so that one video is not dramatically louder than another. Targets vary and change, commonly landing somewhere around -14 LUFS for streaming. A piece mastered much louder gets turned down, and everything you crushed to make it loud stays crushed: you lose the dynamics and gain nothing."}]},{"t":"p","runs":[{"text":"A piece mastered much quieter gets turned up, which is usually fine, but a piece with a quiet voice and loud music gets normalised as a whole and the voice stays buried."}]},{"t":"p","runs":[{"text":"The practical rule: "},{"text":"mix the voice to sit clearly above everything else, and leave the overall loudness alone.","b":true},{"text":" The platform will handle the rest, and the one thing it cannot fix is a balance problem inside your mix."}]},{"t":"h2","id":"the-first-second-silent","runs":[{"text":"The first second, silent"}]},{"t":"p","runs":[{"text":"The opening has to answer "},{"text":"what is this and is it for me","i":true},{"text":" with the sound off. That means motion, a face, a legible few words, or a striking frame: something that works as a picture."}]},{"t":"p","runs":[{"text":"A common and avoidable failure is opening on a person starting to speak. Silent, that is a stranger moving their mouth: no information, and the viewer leaves before the sentence that would have hooked them finishes."}]},{"t":"h2","id":"the-limitation","runs":[{"text":"The limitation"}],"role":"limit"},{"t":"p","runs":[{"text":"Designing for silence pushes work towards on-screen text, and on-screen text competes with the picture for the same eyes. A viewer reading cannot simultaneously study the image, and a piece that solves silence by covering itself in text has traded one failure for another."}]},{"t":"p","runs":[{"text":"The resolution is a matter of sequencing rather than volume: put text where the picture is simple, and let the picture carry the moments that need looking at. That is an editing decision made at the structure stage, which is why sound-off design belongs at the planning table and not at the export dialogue."}]}],"check":{"question":[{"text":"A film-maker mixes a warm, bass-heavy voiceover that sounds rich on headphones. Why does it sound weak on a phone?"}],"options":[{"text":[{"text":"Platform loudness normalisation reduces the overall level, which removes the perceived weight of the low frequencies."}],"correct":false,"tempting":[{"text":"Normalisation changes level uniformly, so it cannot selectively remove the low end that gives the voice its body."}]},{"text":[{"text":"Compressed audio codecs discard low frequencies first because they carry less perceptual information."}],"correct":false,"tempting":[{"text":"Reverses how perceptual codecs allocate bits; they generally preserve low frequencies, which are cheap to encode and perceptually prominent."}]},{"text":[{"text":"Phone speakers are tuned to emphasise speech frequencies, so a deliberately deep voice sits outside the range they boost and is pushed behind the music."}],"correct":false,"tempting":[{"text":"Identifies real speech-range tuning but treats the bass as merely de-emphasised, when the driver cannot produce those frequencies at all."}]},{"text":[{"text":"A speaker a few millimetres across cannot move enough air to reproduce low frequencies, so the warmth is simply not produced."}],"correct":true,"tempting":null}],"order":[1,0,3,2],"why":null},"prev":{"slug":"the-first-frame-is-a-still","title":"The still is what recruits the play","minutes":8},"next":{"slug":"the-feed-is-the-context","title":"Nothing is ever seen on a white wall","minutes":8}}}