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Understanding Spectrograms

Understanding Spectrograms

A spectrogram is a detailed view of audio, able to represent time, frequency, and amplitude all on one graph. A spectrogram can visually reveal broadband, electrical, or intermittent noise in audio, and can allow you to easily isolate those audio problems by sight. Because of its profound level of detail, a spectrogram is particularly useful in post production—so it’s not surprising that you’ll find one in tools like RX 8
and
Insight 2
.

It is good to know how the spectrograms work. The overlay of the waveform is an added bonus.

Increment Current Edit Mode Values for Row — Logic Pro keyboard command of the day

  Increment Current Edit Mode Values for Row

Increases the value for every step in the row. You need to select the proper edit value for the row. Logic will complain if you try to increment something like ‘Chance’ or ‘Steps On/Off’.

Use Step Sequencer edit modes in Logic Pro — Apple Support

You can control different aspects of the event triggered by a step using edit modes. You can choose the edit mode for a pattern, and view multiple edit modes for each row using subrows. Some edit modes are common to both note rows and automation rows, while others are specific to one row type.

Command    Key Touch Bar


- Step Sequencer


Set Global Edit Mode to Steps On/Off ⌃⌥S


Set Global Edit Mode to Velocity/Value ⌃⌥V


Set Global Edit Mode to Gate ⌃⌥G


Set Global Edit Mode to Tie ⌃⌥T


Set Global Edit Mode to Note ⌃⌥N


Set Global Edit Mode to Octave ⌃⌥O


Set Global Edit Mode to Loop Start/End ⌃⌥L


Set Global Edit Mode to Note Repeat ⌃⌥R


Set Global Edit Mode to Chance ⌃⌥C


Set Global Edit Mode to Start Offset ⌃⌥F


Set Global Edit Mode to Step Rate ⌃⌥A


Set Global Edit Mode to Skip ⌃⌥K

Create Backup ⌃B — Logic Pro keyboard command of the day

  Create Backup ⌃B

Create a backup copy of the current audio file. The Audio File Editor performs destructive edits which cannot be “undone”. Reverting to the backup copy is the only way to undo the edits.

The Project Audio Browser has a command — Backup File(s) — which uses the same keyboard mapping. Files backed up have the same ‘.dup’ extension as they do when backed up in the Audio File Editor.

Backup audio files in the Audio File Editor in Logic Pro — Apple Support

In Logic Pro, choose Audio File > Create Backup from the Audio File Editor menu bar (or press Control-B).
A copy of the audio file (with the extension .dup) is created in the same folder as the source file.

The Project Audio Browser in Logic Pro — Apple Support

The Project Audio Browser shows all audio files and regions that have been added to or recorded in your project, whether or not they are used in the Tracks area. Regions shown in the Project Audio Browser that are not used in the Tracks area are indicated in red.