Audio Cutter

How can you trim voice memos and spoken recordings?

Open a voice memo and find the beginning of the useful speech in the waveform. Long quiet stretches often look smaller than spoken passages, but listen before deciding where to cut. Drag the start handle just before the first word and the end handle after the last word. Keep a small natural pause at each boundary so the clip does not sound rushed. Play selection checks only the chosen range, while Loop repeats the active playback range for closer listening.

For precise adjustments, enter seconds or a minutes-and-seconds value in the Start and End fields, then press Enter or Apply times. The start must precede the end, and both must fit inside the recording. Invalid values produce an inline explanation rather than changing the selection. Keyboard users can focus either waveform handle and adjust it with arrow keys. Press Space while the waveform is focused to play or pause.

How do you prepare ringtones and podcast clips?

A ringtone usually needs an immediately recognizable beginning and a clean ending. Choose a short phrase or musical passage, preview it repeatedly, and apply a fade out if the final note stops abruptly. A fade in can soften a sharp opening transient. Available fade durations are zero, half a second, one, two, or three seconds. On very short clips, each fade is limited to half the resulting duration so it stays within the available samples.

For podcast excerpts, leave enough context for the quotation to make sense. Avoid cutting through breaths or consonants unless you intend that sound. Keep selection extracts the highlighted portion into the result. Remove selection does the opposite: it discards the highlighted interval and joins the retained sides. This helps remove a long pause, repeated sentence, or interruption without reconstructing the whole episode. The original file remains unchanged, so you can choose another range and build a different clip.

Which audio and video formats can your browser open?

The file picker accepts MP3, WAV, M4A, AAC, OGG, Opus, FLAC, and WebM recordings, plus MP4 and MOV video containers. Acceptance in the picker does not guarantee successful decoding. Your browser and operating system supply the decoder, and a container can contain a codec they do not support. Safari commonly supports M4A and AAC; MP3 and WAV work across most browsers, while OGG support varies. Video inputs are handled for their audio track only, with no video preview or video export.

If a file fails, the error names its format and suggests trying a WAV copy. The compressed file size limit is 500 MB. Decoding expands compressed sound into floating-point samples, which can require substantially more memory than the source file. A phone may therefore reject a recording below that limit. Close unused applications or prepare a shorter source locally if memory is insufficient.

Why does Audio Cutter export uncompressed WAV?

The output encoder writes PCM samples into a WAV container. This makes the result suitable for continued audio editing and avoids an additional lossy compression stage. Choose 16-bit WAV for a smaller file or 24-bit WAV when your workflow requires that sample representation. Selecting a larger bit depth does not recover detail missing from the original source. MP3 export is not available in this editor.

The displayed estimate multiplies sample frames by output channels and bytes per sample. Stereo therefore uses twice the PCM space of mono at the same duration and bit depth. Mono averages the source channels; check the sound because recordings with opposing channel phases can lose material when mixed. WAV files can remain larger than the original compressed recording even after removing a substantial portion. The result duration also accounts for the short overlap applied when joining two retained sections.

How do you save and protect the finished recording?

Build the clip after choosing your edit settings. The filename starts with the source name followed by “-cut”; edit it before downloading if you need a descriptive label. Share appears only when your device supports sharing WAV files. Changing the selection or output settings clears the previously built result so you cannot accidentally download a stale edit. Preview playback refers to the source recording; inspect the downloaded file to review the final fades and mono mix.

Your recordings never leave the device during decoding, selection, or export preparation. The editor does not request microphone access. Loading another recording stops the previous player and releases its decoded channels. Downloading creates a local file, while sharing explicitly hands that result to your chosen destination. Use the File Hash Verifier if you need to compare a saved recording with an expected checksum. To create a different kind of audio signal from text, explore the Morse Code Translator.