What you can make
Music and sound
Three tools make sound, two get it onto a clip, and this is the newest and roughest corner of Plnty.
If a board review needs something under it, **sonilo-v1.1** writes a track from a description. Give it a line like "warm lo-fi piano, slow tempo, vinyl dust" and it returns 10 seconds to 3 minutes of it, instrumental, licensed for commercial use, priced by the second. **elevenlabs-sfx** does the same for single sounds. Describe one, get a clean mp3 between 1 and 22 seconds, and switch on Loop for a version that repeats without an audible join, made for ambience beds. Fire it and walk away: generation survives a refresh and the audio card appears on the canvas when it is ready. **ace-instrument** is the experimental one. It drives ACE-Step through a set of semantic pills, and its gear panel exposes the model's real synthesis knobs, guidance and granularity and scheduler among them. Instrumental only, 8 seconds to 3 minutes. ## Getting it onto a clip Two routes, and they solve different problems. **mmaudio-v2** watches a silent video and generates audio synced to what happens on screen. What comes back is your same clip with the track baked in, as one playable mp4, anywhere from 1 to 30 seconds. Leave the prompt blank and it scores the clip on its own; write a direction and it follows. **audio-video-merge** is a small edit suite you drive yourself. Drop a canvas video, drag audio cards onto timeline lanes, trim and slide them, pull the edge handles for fades, set per-track gain, export an MP4. It runs ffmpeg compiled into your browser, so when the source is already MP4 the video stream is copied rather than re-encoded. Nothing degrades and nothing waits on a provider. ## What is missing There is no speech. No text-to-speech, no voiceover, no dialogue: the sound tools make music and effects only. The generated audio is also the least developed part of Plnty. **ace-instrument** is openly experimental, and **mmaudio-v2** frequently returns something that is synchronised without being good. Both are being worked on. Use them for a scratch track and reach for a real composer when the piece matters.If a board review needs something under it, sonilo-v1.1 writes a track from a description. Give it a line like “warm lo-fi piano, slow tempo, vinyl dust” and it returns 10 seconds to 3 minutes of it, instrumental, licensed for commercial use, priced by the second.
elevenlabs-sfx does the same for single sounds. Describe one, get a clean mp3 between 1 and 22 seconds, and switch on Loop for a version that repeats without an audible join, made for ambience beds. Fire it and walk away: generation survives a refresh and the audio card appears on the canvas when it is ready.
ace-instrument is the experimental one. It drives ACE-Step through a set of semantic pills, and its gear panel exposes the model’s real synthesis knobs, guidance and granularity and scheduler among them. Instrumental only, 8 seconds to 3 minutes.
Getting it onto a clip
Section titled “Getting it onto a clip”Two routes, and they solve different problems.
mmaudio-v2 watches a silent video and generates audio synced to what happens on screen. What comes back is your same clip with the track baked in, as one playable mp4, anywhere from 1 to 30 seconds. Leave the prompt blank and it scores the clip on its own; write a direction and it follows.
audio-video-merge is a small edit suite you drive yourself. Drop a canvas video, drag audio cards onto timeline lanes, trim and slide them, pull the edge handles for fades, set per-track gain, export an MP4. It runs ffmpeg compiled into your browser, so when the source is already MP4 the video stream is copied rather than re-encoded. Nothing degrades and nothing waits on a provider.
What is missing
Section titled “What is missing”There is no speech. No text-to-speech, no voiceover, no dialogue: the sound tools make music and effects only.
The generated audio is also the least developed part of Plnty. ace-instrument is openly experimental, and mmaudio-v2 frequently returns something that is synchronised without being good. Both are being worked on. Use them for a scratch track and reach for a real composer when the piece matters.