AAC family
AAC-LC (mono or stereo) plus stereo HE-AAC v1 (SBR) and HE-AAC v2 (SBR+PS) — as ADTS .aac or MPEG-4 .m4a. LC uses native WebCodecs with an fdk-aac (WASM) fallback; HE-AAC runs on fdk-aac (WASM).
Client-side audio · Browser & PWA · No upload farm
Live in browser
chainDRiVE
Effects-first transcoder with a real signal chain — not another Play Store junk converter.
Drop a folder of audio, dial LUFS and radio simulation, pick a codec like you mean it (AAC-LC / HE-AAC, LAME MP3, FLAC, Opus, Ogg Vorbis, WebM, AIFF, AU, AMR, and specialty WAV), then batch-export a ZIP — entirely in the browser.
Free to try in the browser. No install, no upload — your audio stays on your device. Store packaging is still in development.
Converters flood the store. Engineers starve.
Most “audio converter” apps are format laundry: one slider, muddy defaults, and zero respect for loudness, psychoacoustics, or batch workflow.
What junk converters do
Ship A→B and call it done
- Hide codec profiles behind “High / Medium / Low”
- Re-encode everything through a mystery pipeline
- Crumble on folders — or charge for “batch unlock”
- Phone-home uploads dressed up as “cloud convert”
What chainDRiVE does
Treat conversion as the last stage
- Visible signal chain — LUFS → FX → brick-wall → encode
- Real codec knobs — HE-AAC profiles, LAME psycho sets, Opus apps
- Strong batch — queue many files → one
(cDRV batch).zip - On-device — OfflineAudioContext + workers; your media stays local
Inside the workbench
Media queue, effects, codec drawer, chain map, CHAiNAMP preview, job log, batch ZIP — swipe the rail.
The chain, not the black box
Every stage is intentional. Loudness first, creative FX in the middle, encode last.
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1
Decode → trim → rate
Load common containers (MP3, M4A/AAC/MP4, FLAC, WAV, Opus/Ogg, WebM, AMR, AIFF, CAF…). Resample and channel-map before any FX.
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2
LUFS normalize
K-weighted integrated loudness with a target you set (broadcast-style −24…−6 LUFS range) and peak safety — not a dumb “normalize to 0 dBFS.”
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3
Reorderable FX
Compressor, Signal Strength makeup, AM/FM radio simulator (hum, multipath, sferics, pilot…), Ear Protect shelf — drag the order, persist it.
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4
Brick-wall → encode → ZIP
Limiter closes the chain, then the encoder you actually chose. Multi-file jobs land in one
(cDRV batch).zip.
Codec depth that belongs in a lab
If the UI only offers “High quality MP3,” it is not a transcoder — it is a toy.
MP3 via LAME
CBR/VBR, HQ toggle, and six psychoacoustic/stereo profiles (LAME Default, FHG Narrow, Music, Speech, Wide Stereo, MS Joint Only), with adjustable stereo width and Force-MS joint stereo — knobs for people who hear the difference.
Lossless
FLAC, AIFF, AU/SND (Sun Audio), and WAV PCM in 16- or 24-bit integer and 32-bit float — bit-exact when you do not want to throw anything away.
Opus, Ogg & WebM
Opus (.opus) with Audio / VoIP / Low-Delay application modes and complexity 0–10, plus Ogg Vorbis and WebM (Opus) for the open-web stack.
Voice & telephony
AMR-NB (8 kHz) and AMR-WB (16 kHz), WAV IMA & Microsoft ADPCM, G.711 A-law / μ-law, and GSM 6.10 — the low-bitrate and legacy codecs most converters skip.
Rates & channels
Sample rates from 8 kHz telephony up through 48 kHz; mono, stereo, or joint stereo where the codec allows; size estimates before you commit.
Capability probing
Formats appear when the device can actually encode them — no fake “Supported” badges for codecs the browser cannot ship.
Privacy by architecture
CSP locks the app to itself. Processing uses local OfflineAudioContext and workers — your stems are not a SaaS upload.
Radio simulation from the same lab as KAOS-FM
Terrestrial AM/FM character printed to a file — the same Dialer's Lab work behind KAOS-FM’s Audio Experience. Pick Off, AM, or FM, dial Signal Strength, and toggle each artifact on or off.
AM character
Eight switchable artifacts: mains hum, power-line buzz, background hiss, heterodyne whistle, crackle & pops, static crashes (sferics), selective fading, and carrier flutter.
FM character
Eight switchable artifacts: background hiss, multipath dips, crackle & rasp, power-tool RFI, stereo separation, ceiling whistle, stereo pilot tone, and program flutter.
Field note: Faking AM & FM in Web Audio.
Batch that respects operators
Queue a folder, set one chain + one encode profile, run once — get a ZIP, not twelve mystery downloads.
Multi-file queue
Drag-drop, select, process all. Same loudness and FX recipe across the set.
Cancelable jobs
Terminal-style process log so you can see decode → LUFS → FX → encode, and abort mid-run.
One ZIP out
(cDRV batch).zip packaging for the whole run — built for people who convert libraries, not single clips.
Where it's live
Browser-first PWA from Dialer's Apps — same studio as Global Chaos CB Radio and KAOS-FM.
Desktop browser
Full workbench layout for Chrome and friends — the serious encode station.
Mobile browser / PWA
Phone-first chrome with the same chain and codec depth — installable from your browser today.
Store packaging
Play packaging follows the live web build. This page updates when that opens.
From Dialer's Lab
Codec depth, honest convert, and where CHAiNAMP is headed.
Try it now
Free, on-device, no signup — open it in your browser and drop in a file.