QAudioEditor vs jd.Edit

QAudioEditor is a lossless audio editor for iPhone (including iPhone Duo) and iPad. Open an MP3, AAC (.aac), M4A (.m4a), Apple Lossless, FLAC, or WAV file - or a video (MP4, MOV, M4V) to edit just its audio - see its waveform, and cut, crop, fade, normalize, copy/paste, or append audio - then save without re-encoding. Untouched audio is preserved byte-for-byte; only faded or normalized regions are adjusted, and always losslessly - MP3 and AAC by rewriting the codec's gain fields, and WAV, ALAC and FLAC in the sample domain - so there is no generation loss. SUPPORTED FORMATS - MP3 (MPEG-1/2 Layer III, constant or variable bitrate) - AAC - AAC-LC, HE-AAC and HE-AAC v2 - in ADTS (.aac) - AAC in MP4 (.m4a) - Apple Lossless / ALAC in M4A (.m4a) - FLAC (.flac), 16- and 24-bit - WAV / PCM (.wav), 8- to 32-bit and 32-bit float - Video (.mp4, .mov, .m4v) - the audio track is extracted losslessly for editing FEATURES - Frame-accurate cut, crop, and trim - Split markers - drop markers anywhere, drag them to fine-tune, and name them; split a long recording into files in one step, each named and tagged after its marker (Pro) - Markers at Silences - finds the pauses between the tracks of a recording, such as an album saved as one file, and drops a marker in each, ready to split (Pro) - Chapters (Pro) - save markers as chapters in MP3 and M4A/M4B, for podcasts and audiobooks; chapters in a file you open become named markers - ReplayGain tags - measure the loudness and tag the file so players level the volume, with no change to the audio (MP3, M4A, FLAC) - CUE sheets - import a .cue file as markers, or export your markers as .cue - Loudness - LUFS, peak and loudness range in File Details - Trim Silence (Pro) - cut the silence at the start and end in one step - Export Selection - save just the selected part as a new file - Very large recordings - multi-gigabyte WAV and FLAC files open, edit and save smoothly; the audio is kept on disk instead of in memory - Lossless fades and one-tap normalize - Pull the audio out of a video (MP4, MOV, M4V) - open it, or insert it at the playhead; AAC and ALAC tracks are extracted with no re-encoding - Cut, copy, paste, and insert or append other files of the same format - Hardware-keyboard shortcuts on iPad - Playback follows the view - scroll to another part while playing and it plays from there - Rich waveform with peak + RMS view, zoom that stays centered on the playhead, and an overview navigator - Spectrogram view - see the frequency content over time on a log scale; toggle it with the waveform - File details, unlimited undo, and crash-safe session restore - Edit tags - title, artist, album and cover artwork - saved losslessly (MP3, M4A/AAC, FLAC) - Export raw AAC as a seekable .m4a - Record Stream (Pro) - record an internet audio stream (Icecast, SHOUTcast or HLS; MP3, AAC or FLAC) without re-encoding, until you stop it or for a set time, then edit the recording, with a marker named after each song - it keeps recording with the screen locked - Shortcuts actions - Normalize, Write ReplayGain Tags, Trim Silence, Split at Silences and Record Stream Free to edit and to save results up to 5 minutes long. QAudioEditor Pro (a one-time purchase) removes the length limit so you can save recordings of any length, and adds Split at Markers, Markers at Silences, Chapters, Trim Silence and Record Stream - and one purchase unlocks Pro on iPhone, iPad and Mac.

jd.Edit is a waveform editor for iPhone, iPad and Mac — cut audio like on a desktop, one purchase for every device. On top of that, the app records through USB audio interfaces in true stereo and remembers your input choice. And it writes MP3 with its own encoder, calibrated against the reference encoder LAME. FREE — INCLUDED FOR EVERYONE • Opens WAV, AIFF, CAF, MP3, M4A/AAC, Apple Lossless, FLAC and Opus (mono and stereo) • Waveform with two-finger zoom all the way down to individual wave cycles • Select, listen, delete, trim to selection, silence — non-destructive, with unlimited undo; the original file is never touched • Linear fade-in and fade-out • Zero-crossing snap and a micro-fade at every cut edge: no clicks • Recording with the built-in microphone as uncompressed WAV (44.1 kHz / 24-bit) • File shelf with folders, search, preview playback and mini player — visible in the iOS Files app • Get audio from videos – from Photos or Files • Export as WAV and AAC EFFECTS – LIKE PLUG-INS, WITH LIVE PREVIEW • Fourteen effects, each on its own page with knobs, toggles and meters: Normalize, Fade, Stereo to Mono, NoiseFloor, High-pass, Equalizer, Leveler, Compressor, De-Esser, SoundsBetter, Limiter, Pitch, BetterVoice and DeClick • Presets: built-in and your own, shareable as files • Live preview: the play button loops the change instantly and every knob is audible as you turn it – only Apply writes it to the file. With a selection an effect applies only there • BetterVoice: a complete voice channel strip in six modules – preamp, high-pass, compressor, de-esser, enhancer, gate • Pitch: shift the pitch with formant preservation or as a tape effect • NoiseFloor removes the noise floor, learned from a selected passage or taken from a preset saved in the Record tab • Leveler evens out level changes like an engineer riding the fader, Compressor catches peaks, De-Esser tames sibilance, the true-peak limiter keeps every peak under the ceiling • Video export: audio as a video with cover art, title and equalizer – or as a turntable scene with spinning disc and tonearm STUDIO • Arrange several tracks on one timeline and play them together – mono and stereo mixed, every file at its own rate • Track heads with mute, solo and fader, drag clips, export the mix as a stereo WAV (up to two tracks free) THE PRO UNLOCK — ONE-TIME PURCHASE, NO SUBSCRIPTION • MP3 export with jd.Codec: constant, variable (V0–V9) or average bitrate, joint stereo, gapless • Freely shapeable fade curves with seven presets • Normalize to peak, RMS or LUFS with true peak • DeClick: remove clicks and crackle, with an AI check • Equalizer with up to 24 bands, analyzer, dynamics per band, mid/side, linear phase, presets and EQ match • Studio with more than two tracks • Recording through USB audio interfaces and in stereo — with a real-time spectrum analyzer and level meters • Wi-Fi transfer: upload and download files in a browser on your computer, with QR code and access code • Export in 24-bit and 32-bit float, with dither • Edit ID tags on MP3s: title, artist, album, cover and more Every Pro feature can be used twenty times for free — only then does the app ask for the purchase. ABOUT JD.CODEC In-house MP3 encoder with zero third-party libraries, verified with 116 round-trip checks and benchmarked against LAME. WAV import → export without edits is bit-identical. CONTROLS One finger pans the view, two fingers zoom, a double tap toggles selection mode. Only in this mode does one finger draw a range — recognizable by the colored frame. Dedicated layouts for iPad, iPhone Duo and Mac. PRIVACY The app sends nothing. No analytics, no account, no servers, no ads. Wi-Fi transfer runs only on your own network and only while it is switched on. LANGUAGES English and German.