OctiMax 5-band Compressor
choosePreset | preset-number [int] |
The word omx.4band~ object. These presets are to be considered "starting points" and should be tweaked for your particular purpose or desired sound. The preset options are: 0: Universal - Provides a general boost to the sound, with a 3-to-1 compression and no limiting. Bass enhancement is switched in for a bit of warmth. 1; Pop - Sets a 50:1 compression with hard driven limiting in the lowest two bands. The gives a solid bottom to the sound. 2: Hit Radio - Is a compromise between the Universal and Pop settings. You will note that the times are all about the same, with appropriately slower attack and release in the low bands. 3: FM Radio - Differs from the Pop and Hit radio settings primarily in the high end, which is compressed a bit tighter. |
, followed by a number in the range 0-2, selects a preset for the
bands_enum | 0/1 [int] |
The word 0: 4-band 1: 5-band |
, followed by a zero or one, sets the number of bands. The option are:
bassenhancement | low-frequency-emphasis-flag (0 or nonzero) [int] |
The word | followed by a non-zero number will enable the specialized enhancement of low frequencies by the multiband compressor; followed by 0, causes no low frequency enhancement to be applied.
bassenhancement_mixlevel | low-frequency-enhancement-level [int] |
The word | , followed by a number, sets the amount of low-frequency enhancement added into the audio signal before output.
bypass | bypass-flag (0 or nonzero) [int] |
The word omx.5band~. | followed by a non-zero number will output the dry unchanged input signal straight out the outlet without any processing; followed by a 0, will output the signal effected by
gating_threshold | release-gate-threshold (dB) [int] |
The word | , followed by a number, sets the release gate threshold (in dB below full scale). When the signal is below this threshold, the release time of the compressor will be slowed by a factor of 3.
freeze_threshold | freeze threshold (dB) [int] |
The word | , followed by a number, sets the freeze threshold (in dB below full scale). When the input signal drops below the freeze threshold, release will seize completely. Along with the gating threshold, this threshold is useful to prevent background hiss amplification.
inagc_atk | input-compressor-attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the attack rate for the input compressor. The attack rate determines how quickly the compressor applies gain reduction. The value range is 0-150 on a logarithmic scale, with larger values indicating faster attack.
inagc_progressive | progressive-release-mode-flag (0 or 1) [int] |
The word | , followed by a 1 or 0, enables or disables the Progressive Release mode, which causes the input compressor to release faster during heavy gain reduction.
inagc_range | maximum-input-compressor-gain (dB) [int] |
The word | , followed by a number, sets the maximum amount of gain in dB applied by the input compressor .
inagc_ratio | compressor-gain-reduction-ratio-numerator [int] |
The word | , followed by a number, sets the numerator of the compressor gain reduction ratio, from 1:1 to Infinite:1.
inagc_rel | input-compressor-release-rate (0 through 150) [int] |
The word | , followed by a number, sets the release rate for the input compressor. The release rate determines how quickly the compressor returns to unity gain. The value range is 0-150 on a logarithmic scale, with larger values indicating faster release.
inagc_threshold | compression-threshold-level (dB) [int] |
The word inagc_threshold, followed by a number, sets the compression threshold level (in dB below full scale) for the input compressor. |
inf_ratio_above_threshold_1 | 0/1 [int] |
The word | , followed by a zero or one, disables/enables Infinite ratio above threshold (sometimes called "soft clipping") for band 1. If enabled, the ratio in that band will be Infinite:1 any time there is gain reduction (i.e. the input signal is above the threshold), no matter what the Multiband Ratio is set to.
inf_ratio_above_threshold_2 | 0/1 [int] |
The word | , followed by a zero or one, disables/enables Infinite ratio above threshold (sometimes called "soft clipping") for band 2. If enabled, the ratio in that band will be Infinite:1 any time there is gain reduction (i.e. the input signal is above the threshold), no matter what the Multiband Ratio is set to.
inf_ratio_above_threshold_3 | 0/1 [int] |
The word | , followed by a zero or one, disables/enables Infinite ratio above threshold (sometimes called "soft clipping") for band 3. If enabled, the ratio in that band will be Infinite:1 any time there is gain reduction (i.e. the input signal is above the threshold), no matter what the Multiband Ratio is set to.
inf_ratio_above_threshold_4 | 0/1 [int] |
The word | , followed by a zero or one, disables/enables Infinite ratio above threshold (sometimes called "soft clipping") for band 4. If enabled, the ratio in that band will be Infinite:1 any time there is gain reduction (i.e. the input signal is above the threshold), no matter what the Multiband Ratio is set to.
inf_ratio_above_threshold_5 | 0/1 [int] |
The word | , followed by a zero or one, disables/enables Infinite ratio above threshold (sometimes called "soft clipping") for band 5. If enabled, the ratio in that band will be Infinite:1 any time there is gain reduction (i.e. the input signal is above the threshold), no matter what the Multiband Ratio is set to.
mbagc_b1_atk | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the attack rate for band 1. The attack rate determines how quickly the compressor applies gain reduction. The value range is 0-150 on a logarithmic scale, with larger values indicating faster attack.
mbagc_b1_drv | pre-compressor-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 1 before compression. Increasing the drive for a particular band applies more compression to those frequencies.
mbagc_b1_rel | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the release rate for band 1. The release rate determines how quickly the compressor returns to unity gain. The value range is 0-150 on a logarithmic scale, with larger values indicating faster release.
mbagc_b1_threshold | compression-threshold (dB) [int] |
The word | , followed by a number, sets the compression threshold level (in dB below full scale) for band 1. A frequency band will be compressed if its signal level exceeds the threshold.
mbagc_b2_atk | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the attack rate for band 2. The attack rate determines how quickly the compressor applies gain reduction. The value range is 0-150 on a logarithmic scale, with larger values indicating faster attack.
mbagc_b2_drv | pre-compressor-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 2 before compression. Increasing the drive for a particular band applies more compression to those frequencies.
mbagc_b2_rel | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the release rate for band 2. The release rate determines how quickly the compressor returns to unity gain. The value range is 0-150 on a logarithmic scale, with larger values indicating faster release.
mbagc_b2_threshold | compression-threshold (dB) [int] |
The word | , followed by a number, sets the compression threshold level (in dB below full scale) for band 2. A frequency band will be compressed if its signal level exceeds the threshold.
mbagc_b3_atk | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the attack rate for band 3. The attack rate determines how quickly the compressor applies gain reduction. The value range is 0-150 on a logarithmic scale, with larger values indicating faster attack.
mbagc_b3_drv | pre-compressor-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 3 before compression. Increasing the drive for a particular band applies more compression to those frequencies.
mbagc_b3_rel | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the release rate for band 3. The release rate determines how quickly the compressor returns to unity gain. The value range is 0-150 on a logarithmic scale, with larger values indicating faster release.
mbagc_b3_threshold | compression-threshold (dB) [int] |
The word | , followed by a number, sets the compression threshold level (in dB below full scale) for band 3. A frequency band will be compressed if its signal level exceeds the threshold.
mbagc_b4_atk | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the attack rate for band 4. The attack rate determines how quickly the compressor applies gain reduction. The value range is 0-150 on a logarithmic scale, with larger values indicating faster attack.
mbagc_b4_drv | pre-compressor-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 4 before compression. Increasing the drive for a particular band applies more compression to those frequencies.
mbagc_b4_rel | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the release rate for band 4. The release rate determines how quickly the compressor returns to unity gain. The value range is 0-150 on a logarithmic scale, with larger values indicating faster release.
mbagc_b4_threshold | compression-threshold (dB) [int] |
The word | , followed by a number, sets the compression threshold level (in dB below full scale) for band 4. A frequency band will be compressed if its signal level exceeds the threshold.
mbagc_b5_atk | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the attack rate for band 5. The attack rate determines how quickly the compressor applies gain reduction. The value range is 0-150 on a logarithmic scale, with larger values indicating faster attack.
mbagc_b5_drv | pre-compressor-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 5 before compression. Increasing the drive for a particular band applies more compression to those frequencies.
mbagc_b5_rel | attack-rate (0 through 150) [int] |
The word | , followed by a number, sets the release rate for band 5. The release rate determines how quickly the compressor returns to unity gain. The value range is 0-150 on a logarithmic scale, with larger values indicating faster release.
mbagc_b5_threshold | compression-threshold (dB) [int] |
The word | , followed by a number, sets the compression threshold level (in dB below full scale) for band 5. A frequency band will be compressed if its signal level exceeds the threshold.
mbagc_progressive | progressive-release-mode-flag (0 or 1) [int] |
The word | , followed by a 1 or 0, enables or disables the Progressive Release mode, which causes the multi-band compressor to release faster during heavy gain reduction.
mbclip_b1_threshold | clipping-threshold [int] |
The word | , followed by a number, sets the bass clipping threshold level (in dB below full scale).
mblim_b1_threshold | peak-limiter-threshold-level (dB) [int] |
The word | , followed by a number, sets the threshold signal level in dB for the peak limiter of band 1.
mblim_b2_threshold | peak-limiter-threshold-level (dB) [int] |
The word | , followed by a number, sets the threshold signal level in dB for the peak limiter of band 2.
mblim_b3_threshold | peak-limiter-threshold-level (dB) [int] |
The word | , followed by a number, sets the threshold signal level in dB for the peak limiter of band 3.
mblim_b4_threshold | peak-limiter-threshold-level (dB) [int] |
The word | , followed by a number, sets the threshold signal level in dB for the peak limiter of band 4.
mblim_b5_threshold | peak-limiter-threshold-level (dB) [int] |
The word | , followed by a number, sets the threshold signal level in dB for the peak limiter of band 5.
mbrange | maximum-compressor-gain (dB) [int] |
The word | , followed by a number, sets the maximum amount of gain in dB applied by the multiband compressor. This limits the gain that is applied when the signal is below the compression threshold. Note that this limiting takes place before the ratio is applied. For example, if the range is set to 24 dB, and the ratio is 2:1, the most gain amplification you can get (after the ratio is applied) is in fact 12 dB.
mbratio | compressor-gain-reduction-ratio-numerator [int] |
The word | , followed by a number, sets the numerator of the compressor gain reduction ratio, from 1:1 to Infinite:1.
meterData | The word | will cause output (by instantaneous command as opposed to metering-interval described by the message) of values which describe the current state of various internal levels of the compressor, and can be used to drive GUI objects to provide visual feedback.|
meterRate | data-output-interval (milliseconds) [int] |
The word | , followed by a number, specifies the interval (in milliseconds) at which the meter data described above will be sent.
meters | metering-output-flag (0 or 1) [int] |
The word | , followed by a 1 or 0, turns the metering output on or off. When metering is on, a list of values will be sent from the rightmost outlet at a rate specified by the message. These values describe the current state of various internal levels of the compressor, and can be used to drive GUI objects to provide visual feedback.
multiband_limiters | peak-limiting-flag (0 or 1) [int] |
The word | , followed by a 1 or 0, enables or disables the peak limiting function, which limits the signal level of each frequency band independently, so it does not exceed the threshold set for that band.
lim_drive | pre-peak-limiter-gain (dB) [int] |
The word | , followed by a number, sets the overall gain in dB before peak limiting is applied.
lim_smoothrelease | limiter-response-flag (0 or 1) [int] |
The word 0: Punchy. Punchy response yields extremely short attack and release times, useful for transparent limiting, or to create loudness. However, if over-used, intermodulation distortion may result. 1: Smooth. Smooth release uses longer attack and release times. The result is still a fast look-ahead limiter, but with less intermodulation distortion and less punch. |
, followed by a number, sets the limiter response mode as follows:
outlevel_cc | level (dB) [int] |
This method is currently disabled. |
outlevel_lf | level (dB) [int] |
The word omx.5band~ object. | , followed by a number, sets the left channel output level in dB for the
outlevel_ls | level (dB) [int] |
This method is currently disabled. |
outlevel_rf | level (dB) [int] |
The word omx.5band~ object. | , followed by a number, sets the right channel output level in dB for the
outlevel_rs | level (dB) [int] |
This method is currently disabled. |
outlevel_sw | level (dB) [int] |
This method is currently disabled. |
ng_enabled_maxch | noise-gate-enable-flag (0 or 1) [int] |
The word | , followed by a 1 or 0, enables or disables noise gating for the multi-band compressor. The noise gating itself has multiple bands, separate from the compressor, allowing independent control via the messages.
ngenabled | noise-gate-enable-flag (0 or 1) [int] |
The word omx.4band~ features two noise gates: one that operates on the entire signal, and one that only affects higher frequencies, such as hiss. | , followed by a 1 or 0, turns the noise gate on or off. A noise gate is effective for reducing background hiss when no other signal is present.
ngthresh1 | threshold-level (dB) [int] |
The word | , followed by a number that specifies a threshold level (expressed as dB below full scale), sets the threshold level at which the noise gate for band 1 will be engaged.
ngthresh2 | threshold-level (dB) [int] |
The word | , followed by a number that specifies a threshold level (expressed as dB below full scale), sets the threshold level at which the noise gate for band 2 will be engaged.
ngthresh3 | threshold-level (dB) [int] |
The word | , followed by a number that specifies a threshold level (expressed as dB below full scale), sets the threshold level at which the noise gate for band 3 will be engaged.
ngthresh4 | threshold-level (dB) [int] |
The word | , followed by a number that specifies a threshold level (expressed as dB below full scale), sets the threshold level at which the noise gate for band 4 will be engaged.
ngthresh5 | threshold-level (dB) [int] |
The word | , followed by a number that specifies a threshold level (expressed as dB below full scale), sets the threshold level at which the noise gate for band 5 will be engaged.
outmix1 | post-compression-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 1 after compression.
outmix2 | post-compression-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 2 after compression.
outmix3 | post-compression-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 3 after compression.
outmix4 | post-compression-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 4 after compression.
outmix5 | post-compression-gain (dB) [int] |
The word | , followed by a number, sets the gain in dB applied to band 5 after compression.
output_level | output level [int] |
The word | , followed by a number, sets the output level. This setting is used for attenuating the output, but clipping will never occur even if you set it to gain. The gain for each channel will take both this control and the controls on the Global Settings page into account, but the gain for each channel will be clamped below 0 to prevent clipping.
saveSettings | The word | causes all parameter values to be sent out the third outlet.|
signal | Audio input, the signal or pair of signals to be compressed. | |
spatial_enabled | 0/1 [int] |
The word | , followed by a zero or one, disables/enables spatial enhancement.
spatial_desired | difference-between-signals (0-100) [int] |
The spatial enhancer separates the channels of mixes that are nearly (but not quite) mono by subtracting a bit of left from the right signal and vice versa, but only when the two are nearly the same. The word | , followed by a number, sets the difference between the side signal and the combined (mono) signal,
spatial_maximum | maximum-gain [int] |
The spatial enhancer separates the channels of mixes that are nearly (but not quite) mono by subtracting a bit of left from the right signal and vice versa, but only when the two are nearly the same. The word | , followed by a number, sets the maximum gain on the two difference signals.
spatial_speed | response speed [int] |
The spatial enhancer separates the channels of mixes that are nearly (but not quite) mono by subtracting a bit of left from the right signal and vice versa, but only when the two are nearly the same. The word | , followed by a number, sets the speed of response to changes in separation.
Name | Description |
---|---|
omx.4band~ | OctiMax 4-band Compressor |
omx.comp~ | OctiMax Compressor |
omx.peaklim~ | OctiMax Peak Limiter |
MSP Compression Tutorial 6: Multiband Compression 2 | MSP Compression Tutorial 6: Multiband Compression 2 |