Recording some samples from a real drum set was amazing and big. Great on hi hat and snare, not so on bass drum as yet.
But when singing to the track described in the following entry it sounded very bad (bass heavy) and it became very apparent that more low cut is needed than already provided by the iPad's internal low cut filter. When mic distance was increased to several inches singing voice was more natural.
Set up:
Large room - Pleiades wideband absorbers - Shure Unidyne III at 2in - Pleiades K117 - IPad
It seems that singing voice especially to a backing track needs much more low cut than speech.
More experiments were conducted as follows.
Using a Grampian ribbon mic at 2in with a Pleiades transformer of only about 3mH primary inductance! and the K117 JFET. Voice was much more natural and on the particular track voice gave a trumpet like effect. At some overload instant of high recording level the sound beame even more alive reminded of Miles Davies HF sound on trumpet. This may suggest that using electron tubes with there gentle and dynamic instantaneous clipping will do the trick artfully.
The Pleiades V5 was tried with vintage Electro Voice RE16 with great and smooth results, very low noise as expected but low recording level as there is a many dB pad on V5's output. (iPad needs to see about 600ohms otherwise the external analog signal supplying device is not recognized). So fader at mix was at max, any hiss still inaudible. The Pleiades V5 has a microphone transformer input inductance of 47mH making a deep low cut which worked great for singing voice on RE16 without its internal low cut filter.
The cheap microphone input transformer bought from eBay.co.uk with primary inductance of 100mH worked great too, amazing, driving either a Pleiades V4 or K117.
Many more experiments were performed with RE16 driving the Canford (400mH input transformer) connected to V4 or K117, which now sounded too bass heavy for singing voice. So various Pleiades filters on XLR adapters were connected in parallel with RE16. Even 25mH corresponding to 1.25KHz sounded great at less than 1 inch mouth mic distance.
A 500 to 50K 1/4 inch adaptor mic transformer sounded great too (300mH imput inductance) but mic had to be at 9in for correct subjective balance on the backing track.
It is time to use a 140mH transformer found in a Carol microphone (140mH - 20H) or making a Pleiades transformer with relatively low primary inductance and a fairly high step up ratio driving a Pleiades K117 pre preamplifier and everything then inside a Neutrik long module that would connect to mic as any normal female XLR connector with cable and other side to iPad's mic input which will supply power too as done on condensers.
It seems that singing voice especially to a backing track needs much more low cut than speech.
More experiments were conducted as follows.
Using a Grampian ribbon mic at 2in with a Pleiades transformer of only about 3mH primary inductance! and the K117 JFET. Voice was much more natural and on the particular track voice gave a trumpet like effect. At some overload instant of high recording level the sound beame even more alive reminded of Miles Davies HF sound on trumpet. This may suggest that using electron tubes with there gentle and dynamic instantaneous clipping will do the trick artfully.
The Pleiades V5 was tried with vintage Electro Voice RE16 with great and smooth results, very low noise as expected but low recording level as there is a many dB pad on V5's output. (iPad needs to see about 600ohms otherwise the external analog signal supplying device is not recognized). So fader at mix was at max, any hiss still inaudible. The Pleiades V5 has a microphone transformer input inductance of 47mH making a deep low cut which worked great for singing voice on RE16 without its internal low cut filter.
The cheap microphone input transformer bought from eBay.co.uk with primary inductance of 100mH worked great too, amazing, driving either a Pleiades V4 or K117.
Many more experiments were performed with RE16 driving the Canford (400mH input transformer) connected to V4 or K117, which now sounded too bass heavy for singing voice. So various Pleiades filters on XLR adapters were connected in parallel with RE16. Even 25mH corresponding to 1.25KHz sounded great at less than 1 inch mouth mic distance.
A 500 to 50K 1/4 inch adaptor mic transformer sounded great too (300mH imput inductance) but mic had to be at 9in for correct subjective balance on the backing track.
It is time to use a 140mH transformer found in a Carol microphone (140mH - 20H) or making a Pleiades transformer with relatively low primary inductance and a fairly high step up ratio driving a Pleiades K117 pre preamplifier and everything then inside a Neutrik long module that would connect to mic as any normal female XLR connector with cable and other side to iPad's mic input which will supply power too as done on condensers.
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