3delite's MP4 Stream Editor

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* Sample display window
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Sample display - stream editor window

The sample display is where you can edit MP3 and the supported audio files graphically with the mouse on a 3D sample display.
MPEG and the decodelessly editable audio files are edited without decoding, this means there is no degradation of quality and it's also very fast, as there is no need to decode and re-encode the files.

Selection start position can be set with left mouse button click, end position with right mouse button click. Point to a position and roll the mousewheel up to zoom in and down to zoom out.
You can play the stream from the position where you click with the middle mouse button.
If the opened stream has subsongs, selecting a subsong on the stream list will adjust the selection on the sample display that matches the subsong.

Commands (above sample display)

Bit rates/Waveform/Sonogram button: Switch between sample waveform view, bit rates graph (MPEG only) and Sonogram display mode. The audio stream can be edited (cut/copy/paste etc.) in any mode.
Scroll check box: If checked and the sample display is zoomed in, playback position will scroll the sample to keep the current playback position in view.
Amplitude track bar: Adjust the sample amplitude. Useful for silent audio files.
+ Cut button: Adds the selection to the cut list. Useful if you want to create a new file from multiple parts of the opened audio file (or multiple audio files). Works decodelessly with MPEG (MP3), MP4, Ogg Vorbis, Opus and DSD audio files, other formats are decoded and can encoded to any of the supported formats.
Subsongs check box: Toggle visibility of subsongs.
+ Seek button: Add a new subsong from selection starting position. Optionally specify end position with selection end position. This will pop-up a dialog with options to set artist, title, etc. for the new subsong. Use the menu: File/Save Subsong Layout to save the subsong layout or menu: File/Generate .CUE Sheet. Subsongs are stored in ID3v2 tag, so only audio file formats support subsongs which can have ID3v2 tags like MP3, MP2, Flac (not recommended), WAV and DSD, .CUE file is generated aside the audio file with the same name but with .CUE extension. An exising subsong's position can be moved with left mouse clicking on a subsong and dragging it with the mouse. Right mouse button clicking on a subsongs deletes it.
Zoom sel button: Zoom to view selection 'full screen'.
Select all button: Select whole audio file. Sets selection starting position to 0 and selection end position to the end of the audio.
View all button: Zoom out to view audio file's whole sample.

Control panel (right to sample display)

Start frame: Selection start position in MPEG frames for MPEG files and sample number for other audio file formats. Below it you can see the converted values to time.
End frame: Selection end position in MPEG frames for MPEG files and sample number for other audio file formats. Below it you can see the converted values to time. You can use the 'Start frame' and 'End frame' lebels to click to quickly set the selection to beginning and at end.
With the channel control icons you can (in order from left to right): play all, pause/continue playing, stop playing, preview paste, play selection, preview cut. You can specify in settings: MP3 tab how long the preview should be (default is 6 seconds).
Selection's length display shows the selection length in time.
Selection's size display shows the selection's estimated size in bytes.
Mouse cursor position display shows the time value where the mouse is pointing on the sample dispaly when hovered with the mouse.

Main menu items

Menu items that appear when the sample display is displayed, for the main menu items see main window menu items.

File

Open: Same as clicking Sample above the stream list: Open a file for editing with sample display.
Close: Close the current loaded stream (close sample display).
Close All: Close all loaded streams.
Save As...: Save the current audio stream to a new file. You will be prompted for a file format. Use the preset 'MPEG frame copy' to save MPEG (MP3, MP2) files without re-encoding.
Save Subsong Layout: Save changes to the subsongs into the stream's ID3v2 tag. Subsongs are stored in ID3v2 tag, so only audio file formats support subsongs which can have ID3v2 tags like MP3, MP2, Flac (not recommended), WAV or DSD formats. Subsongs have the advantage of supporting basically any tag information supported by the ID3v2 specs, even different cover arts for every subsong. Subsongs are only supported by MP4 Stream Editor.
Generate .CUE Sheet: Build a .CUE sheet file from subsongs. File will be saved beside the audio file, file name will be the same as the stream's but with .CUE extension. .CUE sheets have the advantage that they are supported for any audio file format and also by other software. The limitation is that just a few information like artist, album and title are possible.

Edit

Undo: Undo last operation (unlimited level). Undo files are kept in the MP4 Stream Editor temporary folder, specified in settings and only deleted when you exit the application. So if your storage space runs out exit MP4 Stream Editor end start MP4 Stream Editor again or delete the temporary files manually.
Redo: Redo last operation (unlimited level).
Cut: Cut out selection and copy it onto the clipboard. MP3, MP2, MP4, Ogg Vorbis, Opus and DSD frame copy compatible. Other formats will be decoded to WAV for this operation.
Copy: Copy the selection onto the clipboard. MP3, MP2, MP4, Ogg Vorbis, Opus and DSD frame copy compatible. Other formats will be decoded to WAV for this operation.
Paste: Paste clipboard content (insert) from selection starting position. MP3, MP2, MP4, Ogg Vorbis, Opus and DSD frame copy compatible. Other formats will be decoded to WAV for this operation. If the source and destination audio formats are different the 'Paste With Convert...' dialog will appear.
Paste With Convert...: Paste clipboard content (insert) from selection starting position with optional audio format change. All formats will be decoded to WAV for this operation.
Paste Mix: Paste clipboard content (mix together source and destination) from selection starting position. All formats will be decoded to WAV for this operation. If the source and destination audio formats are different the 'Paste Mix With Convert...' dialog will appear.
Paste Mix With Convert...: Paste clipboard content (mix together source and destination) from selection starting position with optional audio format change. All formats will be decoded to WAV for this operation.
Paste As New: Paste clipboard content as a new file, open a new sample display window with the clipboard content.
Trim To Selection: Discard the part before and after the selection and keep only the selection. MP3, MP2, MP4, Ogg Vorbis, Opus and DSD frame copy compatible. All formats will be decoded to WAV for this operation.
Cut All Subsongs: Cut all subsongs out from the audio file (no clipboard support). MP3, MP2 frame copy compatible.
Append Clipboard Content: Append clipboard content at the end of the opened stream. MP3, MP2 frame copy compatible.
Append Stream...: Append an audio file at the end of the opened stream. MP3, MP2, MP4, Ogg Vorbis, Opus and DSD frame copy compatible. All formats will be decoded to WAV for this operation.
Insert Silence...: Insert silence, length specified, from selection starting position. All formats will be decoded to WAV for this operation.
Change Volume...: Change selection's volume. All formats will be decoded to WAV for this operation.
Normalize Volume...: Change selection's volume to a specified maximum. All formats will be decoded to WAV for this operation.
Fade Volume...: Change selection's volume to fade in or out by a specified amount. All formats will be decoded to WAV for this operation.
Fade Volume Shaped...: Change selection's volume to fade in or out by a custom specified shape. All formats will be decoded to WAV for this operation.
Reverse: Reverse selection. Selected audio part will play backwards.
Change Tempo...: Changes the sound to play at faster or slower speed than original, without affecting the sound pitch.
Change Pitch...: Changes the sound pitch or key, without affecting the sound tempo or speed.
Edit Channel: Set which channel is affected, which channel to edit.
Preview Cut: Preview the result of cut with current selection. Only works with MP3, MP2 files. Change the length of the preview in settings.
Preview Paste: Preview the result of paste with current selection's start position. Only works with MP3, MP2 files. Change the length of the preview in settings.
Apply DSP Effect Plugin...: Apply an MP4 Stream Editor DSP effect to selection. All formats will be decoded to WAV for this operation.
Apply VST DSP Effect Plugin...: Apply a VST DSP effect to selection. All formats will be decoded to WAV for this operation. You can download VST DSP plugins from internet. More info here: plugins.
View All: Zoom out to view whole sample.
Select All: Reset selection from start to end.
Shift Subsong Seekpoints...: Shift subsong system/.CUE subsong seekpoints. Note that it's not sliding the seekpoint, the more is the seekpoint in the stream, the more it will change it's position. n*%
Slide Subsong Seekpoints...: Slide subsong system/.CUE subsong seekpoints. n+%
Remove All Subsongs: Delete all subsongs. Use the 'Save Subsong Layout' menu item to save the changes.

Stream

Resample: Decode the audio stream and rebuild sample cache (refresh sample display to match stream's contents).
Deflash: Decode the audio stream and switch to WAV editing mode.
Change Format...: Re-sample, change resolution, re-order and re-mix channels, switches to WAV editing mode.
Refresh Display: Re-initialize Direct3D display.
Show Bit Rates: Show bit rates distribution when switching to 'Bit rates graph'.
Save As WAV...: Convert the stream and save as WAV file.
Save Selection As...: Convert the selection and save as a file.
Save Selection As WAV...: Convert the selection and save as a WAV file.
Save Selection As Stream Copy...: Copy selection as frames to a new file. MP3, MP2, MP4, Ogg Vorbis, Opus and DSD frame copy compatible.
Add To EncodeList...: Add stream to encode list.
Add Selection To EncodeList...: Add selection to encode list.
Add Selection to CutList: Add selection to cut list. Same as clicking '+Cut' above the sample display.
Add Subsongs To Cut List: Add all subsongs to cut list.
Change MPEG Frame Header Bits...: Change copyright/original/emphasis bits in MPEG streams. All MPEG frames will be processed. Supported for MP3 and MP2.
Sound Search...: Find occurances of an audio clip in the audio file. The search is not bit-by-bit type it's based on FFT processing. Found matches will appear as subsongs.
Scan Silence, Mark Loud Parts...: Scan audio and mark loud parts as subsongs.