Delay and reverb
Quarter notes per minute, 20 to 400.
| Note | Straight | Dotted | Triplet |
|---|
Tempo from a time
120 BPM
Reverb timed to the tempo
A common convention, not a rule: pre-delay and decay together last one note value, so the tail ends on the grid. Bars are bars of 4/4.
| Space | Pre-delay | Decay | Total |
|---|
Tempo and pitch
| Resample varispeed | Time-stretch pitch held | Pitch-shift tempo held | |
|---|---|---|---|
| Tempo | |||
| Pitch | |||
| Length |
Notes and frequency
415 to 466 Hz.
MIDI numbers middle C as 60; octave names vary between programs.
Notes as C4, F#3 or Bb2.
- Nearest note
- Offset
- Exact MIDI
- Period
- Wavelength
Note frequencies at A4 = 440 Hz
Samples and file size
1,000 to 768,000 Hz.
Samples and time
| Samples | Milliseconds |
|---|
File size and recording time
1 mono, 2 stereo, 6 for 5.1.
288,000 bytes per second
| Format | Size for 3:30 | Time in 64 GBh:mm:ss |
|---|
Audio data only; headers and metadata add a little. MB and GB are powers of 1000, MiB and GiB powers of 1024. Lossy bit rates count all channels.
Room modes
Reverb time, for the Schroeder frequency.
- Speed of sound
- Volume
- Ratio
- Lowest axial modes
- Schroeder frequency
- Axial
- Tangential
- Oblique
- Cluster
- Gap
Flags consider axial modes, which generally carry the most energy. Both limits are conventions: 20 Hz for gaps is a long-standing rule of thumb, and the cluster width is a judgment call.
Every mode up to 300 Hz
| Frequency | Mode | Type | Nearest note, cents | Flag |
|---|
Mode numbers count half-wavelengths along length, width and height. Notes use A4 = 440 Hz.
Keyboard
- T
- Tap tempo
- ↑ ↓
- Turn a focused knob
- Shift + ↑ ↓
- Turn it in bigger steps
- Home End
- Knob to its lowest or highest
- ← → ↑ ↓
- Move through the delay and note tables
- Enter
- Copy a delay time, pick a note
- ↑ ↓ in the mode list
- Mark a mode on the chart