Tascam DM-24 Effects Manual
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TASCAM DM-24 Effects 11 3 – Antares microphone modeling NOTE All names of microphone manufacturers and micro- phone model designations appearing in this manual and on the DM-24 are used solely to identify the micro- phones analyzed in the development of the digital models and do not in any way imply any association with or endorsement by any of the named manufactur- ers. This effect allows you to model the characteristics of a particular model of microphone and apply it to the microphone you are actually using. In addition to reproducing the sonic characteristics of the modeled microphones, this effect also allows for the reproduction of certain options on the modeled microphone (for example, low cut filters, etc.). Typically, you will want to “re-record” already recorded tracks with another microphone model at the mixdown stage, as this allows you to experiment with settings. When you use the modeler at the mixdown stage, though, it is important that you have clear and detailed notes of the microphone conditions which were used to make the original recording. Among other useful information which should be noted when the recording is made: Type of microphone Distance of source from microphone Any filter settings made on the microphone The response pattern used when recording Of course, it is also possible to record directly using one physical microphone and modelling another, but in this case, it is more difficult to experiment, and to make changes afterwards. Note that when we talk about the microphone mod- eler, we use the term source microphone to describe the actual physical device and the description of it in the modeler, and model to describe the target, virtual microphone. The diagram below gives an approximate idea of how the parameters available interact with each other (sig- nal flow may be taken as being from left to right). Limitations Be aware, though, that while the microphone model- ling will produce excellent effects, it is not capable of producing something from nothing. In other words, a poor recording made with a cheaper source micro- phone will not be magically transformed into a good recording, if an expensive microphone model is selected—it will still sound like a poor recording, but made with an expensive model.Nor can the microphone modeler magically restore missing parts of the signal which are missing because of the limitations of the source microphone. If a cheap microphone with limited bass response is used to record, using an expensive model with the micro- phone modeler will not put the missing bass back into the recording. Input levelSource mic type Preserve source (bass and treble) Model mic typeTube saturationOutput level Source mic proximityModel mic proximity Source mic low-cutModel mic low-cut Source mic response patternModel mic response pattern
3 – Antares microphone modeling—Overall settings 12 TASCAM DM-24 Effects Excessive frequency boosting can occur if processes intervening between the microphone and the modeler produce noise. This noise will be excessively boosted, especially if the filtering on the microphone and the recording process has accentuated this. Polar response patterns can be simulated, but cannot automatically change the pattern of the source micro- phone. For example, if a recording has been made using a microphone with a cardioid response pattern, setting the model’s pattern to omnidirectional will not automatically turn the source microphone into an omnidirectional microphone (and add the room ambience that would be present if the microphone actually was an omnidirectional one). Likewise, if a source microphone has a particular off-axis response, this individuality will be retained even if a different model is selected. NOTE The microphone modeler can only be used with the L input and output of either effect 1 or effect 2. It is not possible to use the microphone modeler to process two channels at the same time using one effect. The microphone modeler is not available in high sam- pling frequency mode. Selecting the microphone modeler Recall the preset library entry 1-100 in order to load the microphone modeler. See “Setting up the effects units” on page 7 for fur- ther details. Overall settings These settings apply to the overall effect (not to the source or model microphones individually). Input gain This (INPUT) allows you to set the rela- tive gain for the input source (top row, POD 2). Start at 0 dB, but you may want to increase the level slightly to increase the amount of saturation available to the processor. The signal may be cut by a value up to –30 dB and boosted by up to 12 dB. NOTE Increasing this input level to obtain the highest possible non-clipping meter level does not result in the improve-ment in dynamic range that would result if this opera- tion was to take place on an all-analog system. Output level This (OUTPUT) allows the overall output gain from the modeler to be adjusted from 0dB to –12dB. Bypass This allows the whole of the microphone modeler to be bypassed for A-B comparisons. It is not the same as selecting the bypass microphone model (“The bypass microphone model” on page 13), which is a “neutral” microphone model for either source or output (but it is the same as selecting it for source and output). Selecting the source microphone Move the cursor to the Source Microphone, selecting the model using POD 1.The manufacturer name is given at the top left of the box, and the model at the bottom right. There may be two listings for a particular source microphone model, one of them ending with a -w. This means that this is the model of microphone with a supplied windscreen (thereby affecting the acoustic characteristics of the microphone). There may also be a (m1) or (m2) following the microphone name. These refer to different examples of the same kind of microphone. Pick the one which is most appropriate for your particular microphone. If you do not have a microphone listed in the list of source microphones provided:
3 – Antares microphone modeling—Selecting a model for output TASCAM DM-24 Effects 13 Use a different microphone which is listed, if you have one. Select a similar model of microphone from the same manufacturer; that is, one with similar char- acteristics to the one in use. Select another microphone of the same type (for example, another large condenser microphone, etc.). Select Bypass (that is, no microphone) as the source. Note that if you do select a microphone of a different type to the actual microphone, though you will prob- ably obtain acceptable results, the resulting sound will not be 100% accurate. The bypass microphone model The bypass microphone model is equivalent to no microphone being used. This may be useful in the case of electric instruments which have been direct-injected (that is, with no microphone involved) and where the model microphone is to be used to provide a distinctive sound for these instruments. Although this may not produce an absolutely realistic model of the model microphone, it will almost cer- tainly produce an interesting sound. Source microphone settings In addition to the type of microphone used as the source microphone, the modeler needs to know a few more things before it can achieve the best results: Proximity This is the average distance of the sound source from the microphone when the recording is made. The distance is measured in inches (1 inch = 2.54 cm). If this is not set, then the “proximity effect” (an artificial boost in bass frequencies at close range) may not be properly compensated, and the sound will be unnatural. Note that microphones with an omnidi- rectional response do not exhibit this proximity effect, and any settings made here with an omni source microphone will have no effect. Use pod 2 on row 3 for this setting. NOTE As the source moves away from the microphone, an amount of ambient room tone is added to the record- ing. The microphone modeler cannot add the room tone, but a little reverb added to the signal may help here. Pattern The pattern of the source mic, if selectable, should be echoed in this setting. If the source mic is fixed-pattern, no selection is possible here, and the display shows None here. Use POD 3 on row 3. Low-cut filter Many microphones have a bass cut filter. If this filter has been set on the real physical source microphone, this setting should be made on the source microphone of the modeler as well. This is done using POD 4 on row 3. The actual name of this filter varies according to the actual name on the physical microphone, and will not exist at all if the mic does not actually have such a fil- ter fitted (the display shows None). NOTE The modeler assumes that the source was recorded on-axis. Since there is no way to tell the modeler about the actual position of the source relative to the micro- phone, the modeler cannot compensate for frequency differences, etc. caused by off-axis placement of the source. Selecting a model for output In the same way as you selected a microphone as the source mic, move the cursor to the Model Micro- phone field (POD 1, bottom row), and select the model of the microphone to be modeled. As with the source microphone, a -w indicates that a windscreen has been added to the model. There may also be variants of the base model, as described for the source microphone.If the Bypass “microphone” is selected here, and a source microphone is selected, the effect will be that of the source microphone’s characteristics. If Bypass is selected both for the source and the model, the final result of the modeler will be the input source, with the addition of any tube saturation added by the modeler (see below).
3 – Antares microphone modeling—Selecting a model for output 14 TASCAM DM-24 Effects Model microphone parameters As with the source microphone, there are a number of different additional parameters available which can be set. Proximity As with the source microphone, the model can also have a proximity value set (in inches again). Use POD 2, bottom row. When used with the model, it will affect the final character of the sound, as if the source was the speci- fied distance from the model microphone when the recording was made. Note that this setting cannot add “room tone” to a recording, even though the further away a real micro- phone is from a sound source, the more room tone is added to the final recording. NOTE Since omnidirectional microphones do not exhibit the proximity effect, if the model microphone is omnidirec- tional or has its pattern set to omnidirectional, this set- ting will have no effect. Low-cut filter If the modeled microphone is fitted with a low-cut filter, this is also available on the model (if there is no filter available on the actual microphone being modeled, the model does not have a filter available, and shows None). Note that this filter is not a straight low-cut filter—it is a representation of the actual filter incorporated on the physical microphone being modeled. NOTE Although it is not a hard and fast rule, it is a good idea to include the low-cut filter on the model if the filter has been used on the source microphone. Response pattern As with the source micro- phone, the model can also take different response patterns (if the actual physical microphone being modeled is capable of this kind of flexibility—other- wise None is displayed for this option). Pod 3, bottom row is used here. Remember that the modeler cannot spontaneously recreate missing data, so if a recording has been made with the source off-axis, this setting cannot be used to add the frequencies that were lost by the off-axis recording. Preserve source settings These settings allow you to make a hybrid micro- phone, dividing the microphones (both source and model) into their treble and bass components. In this way, the two halves of the microphones can be “sandwiched” together to produce unusual creative effects. Usually, however, you will want to keep the desirable characteristics of the source microphone (for exam- ple, a bass response) and eliminate the undesirable side (say, a poor treble response). First, make all the appropriate source microphone settings. Bypassing the system is not a good idea here, as it will not have any useful effects.Use the Preserve Source controls (PODs 1 and 2, sec- ond row) to select the portion of the source micro- phone that you want to keep (either the treble portion on the bass portion). Keeping the original shows PRESERVE, and sending the signal through the processor shows PROCESS. When a portion of the source microphone is pre- served in this way, it overrides the corresponding portion of the model microphone. Obviously preserving the source for both the bass and treble portions of the source is not terribly useful (though the proximity settings for both the source and the model remain effective). Tube saturation One of the more attractive aspects of older studio equipment is tube (valve) saturation. The microphone modeler provides you with a way to simulate this on the output side of the modeler. Pick a value of the GAIN which suits your ears. The maximum value which may be set here is +10 dB (0.1 dB steps). The signal to be recorded must there-fore be at a level which is at least greater than –10 dB for this to have any effect. Use POD 4, second row to set the amount of gain. However, you should take care that the input level is not increased to the point where digital distortion occurs.
3 – Antares microphone modeling—Microphone models TASCAM DM-24 Effects 15 You may need to “juggle” the values of the input level and the drive gain to achieve the most satisfac- tory results for this parameter. Microphone models The microphone models listed here are available for the DM-24 microphone modeler. In the display, typically parameters and names are shown as given here, but the spacing of words on screen may sometimes differ from those given in the table.The microphone response patterns are shown in uppercase, as follows: CARDIOID (cardioid), OMNI (omni-directional), HYPERCARDIOID (hyper-car- dioid), FIGURE 8 (figure-of-8), WIDE CARDIOID (wide cardioid), w A98SPM (w A98SPM) and MS (MONO SIM) (MS (mono sim)). Number Microphone Maker Microphone name Low cut Pattern 0bypass mic - none none 1 AKG C 1000S none none 2 C 12A none / -7 dB/oct / -12dB/oct cardioid / omni 3 C 3000 off / on cardioid / hypercardioid 4 C 4000 B 0 Hz / 100Hz cardioid / hypercardioid / omni 5 C414 0 Hz / 75Hz / 150Hz cardioid 6 C 414B-ULS (mod1) 0 Hz / 75Hz / 150Hzcardioid / hypercardioid /figure 8 / omni 7 C 414B-UHS (mod2) 0Hz / 75Hz / 150Hz cardioid / omni 8 C 414B-UHS Gold 0Hz / 75Hz / 150Hzcardioid / hypercardioid /figure 8 / omni 9 C 414B-ULS Gold (w) 0Hz / 75Hz / 150Hz cardioid / hypercardioid /figure 8 / omni 10 C 460 B, CK 61-ULS 0Hz / 50Hz / 70Hz / 150Hz none 11 D 122 (1) none none 12 D 122 (2) none none 13 D 790 none none 14 AlesisAM61 off / on none 15 Audio Technica 3525 off / on none 16 4033 off / on none 17 4047 sv off / on none 18 4050 off / on cardioid / fugire8 / omni 19 4055 none none 20 4060 none none 21 853Rx none none 22 AT M 1 1 none none 23 ATM31 none none 24 Audix D4 none none 25 OM2 none none 26 OM3-xb none none 27 OM5 none none 28 Beyer CK-703 off / on none 29 M-500 LE Classic none none 30 MC-834 LIN / 80Hz / 160Hz none 31 Brauner VM1 none cardioid / hypercardioid / wide cardioid / figure 8 / omni 32 B & K 4007 none none
3 – Antares microphone modeling—Microphone models 16 TASCAM DM-24 Effects 33 CAD 95Ni none none 34 C400S none none 35 Equitek E100 off / on none 36 Equitek E200 off / on cardioid / figiue8 / omni 37 Equitek E350 off / on cardioid / figure8 / omni 38 VSM1 (mod 1) off / on none 39 Coles 4038 none none 40 EarthworksTC-30K none none 41 Z30X none none 42 ElectroVoice N D 357 none none 43 PL20 off / on none 44 Gefell UMT 800 off / on cardioid / hypercardioid / wide cardioid / figure 8 / omni 45 Groove Tubes MD-1 none none 46 Lawson L47 none none 47 Manley Reference Gold none cardioid / figure 8 /omni 48 Neumann KM 184 none none 49 KM 184(w) none none 50 M 149 20Hz / 40Hz / 80Hz / 160Hzcardioid / hypercardioid/wide cardioid / figure 8 / omni 51 TLM 103 none none 52 TLM 193 none none 53 U 47 none cardioid / omni 54 U 87 GOLD off / on cardioid / figure 8 /omni 55 U 87 off / on cardioid / omni 56 OktavaMC 012 none cardioid / hypercardioid / omni 57 MK-319 off / on none 58 RCABK-5AM (music) / V1 (voice) / V2 (voice)none 59 RodeNT1 none none 60 NT2 off / on cardioid / omni 61 NT2(w) off / on cardioid / omni 62 NTV none none 63 Royer R-121 none none 64 Sennheiser E 609 none none 65 E 835S none none 66 MD 421 M (music) / 3 / 2 / 1 / S (speech)none 67 MD 441 M (music) / 3 / 2 / 1 / S (speech)none Number Microphone Maker Microphone name Low cut Pattern
3 – Antares microphone modeling—Microphone models TASCAM DM-24 Effects 17 Updating microphone models The modeler provides up to 100 models of micro- phone. More may be made available in the future through the TASCAM Web site.Consult your dealer for availability. 68 Shure Beta 52 none none 69 Beta 57A none none 70 Beta 87A none none 71 Beta 98D-S none none 72 KSM32 LC 0 / LC 1 / LC 2 none 73 SM57 none none 74 SM58 none none 75 SM7A LC off Mid off / LC off Mid on / LC on Mid off / LC on Mid onnone 76 SM81 LC 0 / LC 1 / LC 2 none 77 SM98A off / on w A98SPM 78 VP88 (mono sim)off / on MS (mono sim) 79 Sony C37P M / M1 / V1 / V2 none 80 C48 M (music) / V (voice) cardioid / figure 8 / omni 81 C800G none cardioid / omni 82 C800G(w) none cardioid / omni 83 Telefunken TELE U47 none cardioid / omni Number Microphone Maker Microphone name Low cut Pattern
18 TASCAM DM-24 Effects 4 – Antares speaker modeling In the same way that microphones can be modeled, the DM-24 allows for the modeling of speakers. Once again, it is important to remember that it is not possible to instantly transform a pair of low-end near-field monitors into a pair of expensive, top-of-the-line monster monitors (even modern tech- nology has its limits), but it can be useful for simulat- ing some of the speaker types on which your final project will be played, and for which you may not have space in your control room (or where it may be inconvenient to reproduce the sound—for example, not many people will wish to purchase a SUV merely for the acoustical properties of the interior!). The technique for using this is similar to the micro- phone modeler, but not so complex. Basically, you define a set of source speakers (the real speakers that you are listening to) and a set of target speakers (the ones that you wish to model).This speaker modeler can be inserted anywhere in the signal chain, but obviously it is more useful if it is selected as an insert in the main stereo outputs. NOTE Due to technical limitations, if the speaker modeler is selected as one effect, the reverb cannot be selected as the second effect. It is also not available in high sampling frequency mode. Selecting the speaker modeler Recall the preset library entry 1-101 in order to load the speaker modeler. See “Setting up the effects units” on page 7 for fur- ther details. General parameters There are three general settings which are all set using the top row of PODs. INTYPE stands for input type. There are four options here: Stereo, L mono, R mono and LR mono. The first three explain themselves, but the last refers to a mono signal comprised of the L and R output signals added together. INPUT the input level can be adjusted (in 1 dB steps) from –30 dB to +6 dB. BYPASS the whole of the speaker modeler effect can be turned on and off with this parameter. Source speaker types The source speakers which may be selected are generic types of speaker, not individual models. The different selections available (pod 2, bottom row) are: Bypass speaker (as if there was no output speaker connected to the DM-24) Cheap Near Field (for “cheap”, read “low-cost, but acceptable performance”, but that is too long to fit on the display!) Large Studio (dedicated studio monitors) • Mid Field Studio Near Field (better quality than the “cheap” model) Pro Near Field (more expensive than the other mod- els here) Choose the setting which you feel comes closest to your set of speakers. You can test the source model by selecting the Bypass type for the target speaker and changing between the different models, making A-B comparisons with the whole effect bypassed in order to achieve the closest match.
4 – Antares speaker modeling—Target speaker types TASCAM DM-24 Effects 19 Target speaker types The speakers modeled here are generic, rather than reproducing a particular make or model of speaker. They represent a wide range of speaker types on which your material may eventually be played. Bypass speaker (no model for the output speaker) Boombox 1 (one type of “boombox”) Boombox 2 (another variation on the boombox theme) Car Sedan (an average car sound system) Car SUV (the kind of sound you might expect from an SUV sound system) Compact Stereo (domestic stereo system, but small speakers) Computer Speaker (useful for multimedia sound mixes) Large Home Studio (good quality domestic/semi-pro speakers) Mid Sound Reinforcement (not necessarily top-of-the-range, but good-quality sound reinforce- ment) Small Home Studio (smaller speakers intended for the musician/home recordist) TV (typical TV speaker sound) Use POD 4 on the bottom row to select the speaker type. A few limitations Once again, it is necessary to emphasize that you cannot turn a poor-quality set of speakers into an expensive pair of monitors.However, what you can do is to reproduce the tonal characteristics of a certain type of speaker and envi- ronment, allowing you to “field-test” your project for a particular purpose without even changing your speaker system.
20 TASCAM DM-24 Effects 5 – TC Works Reverb The TC Works reverberation built into the DM-24 is a sophisticated reverb system, allowing you to simu- late many different kinds of acoustic environment.Most common (and a few less common) parameters can be edited, allowing fine control of the whole sound. NOTE Due to technical limitations, if reverb is selected as one effect, the reverb or speaker modeler cannot be selected as the second effect.It is also not available in high sampling frequency mode. General parameters There are three general settings which are all set using the top row of PODs.INTYPE stands for input type. There are four options here: Stereo, L mono, R mono and LR mono. The first three explain themselves, but the last refers to a mono signal comprised of the L and R output signals added together. INPUT the input level can be adjusted from Off, and then (in 5 dB steps) from –140 dB to –60 dB, (in 1 dB steps) from –60 dB to –20 dB and (in 0.1 dB steps) from –20 dB to 0 dB. OUTPUT The output level can be adjusted from Off, and then (in 5 dB steps) from –140 dB to –60 dB, (in 1 dB steps) from –60 dB to –20 dB and (in 0.1 dB steps) from –20 dB to 0 dB. MIX Adjust the wet/dry mix from 0% (dry) to 100% only reverb) in 101 1% steps. Balance controls There are two balance controls on the second POD row ( BALANCE). I/R This stands for “Initial Reflections” (sometimes called Early Reflections”). POD 1 controls the left/right balance of these reflections from 50 through 0 to 50. TA I L This stands for “reverb tail”—the final decay of the reverb sound. POD 2 controls the left/right bal- ance of these sounds from 50 through 0 to 50. Maximum decay time HIGH MID LOWTail Early reflections Initial level INLEV) Pre-delay (PREDLY)Reverb feed Reverb level (REVLEV) (REVFEED)