TLM103D

With the development of the first digital recording equipment, the digitization of audio data began many years ago, at the end of the signal processing chain. By now, almost all audio signal processing components are available in digital form.

It is well-known that digital signals provide the necessary conditions for mathematically precise calculation and processing, allowing signals to be modified, copied, transmitted and stored as desired, with no loss of quality.

In contrast, analog signal processing is characterized by limited precision, error accumulation, a lack of redundant signal information, and no possibility to include error correction procedures. In the analog signal transmission chain, every processing step is thus associated with a deterioration of signal quality. This results in a progressive decrease in dynamic range, due to the introduction of noise voltages and nonlinear distortion.

Moreover, digital processing permits the performance of functions that are difficult or impossible to implement by means of analog signal processing. This is particularly the case with functions that require intermediate data storage.

With the Solution-D digital microphone system, Neumann has succeeded in bringing the dynamic range and signal fidelity of the best analog studio microphones into the digital domain, thus making possible an entirely digital signal chain for audio production.

Thanks to optimized A/D conversion, especially developed synchronization technology, and the capability of controlling standard microphone parameters and various integrated signal processing functions remotely, Solution-D meets the most demanding requirements of professional audio production. The fundamental principle of the technology permits recordings to be made with no „bottlenecks“ in the signal chain.

An extremely fast peak limiter integrated into the microphone provides constant protection from overloading. The Neumann A/D converter, which is likewise located in the microphone, eliminates the necessity of tedious experimentation with external converters and preamps. The Neumann sound, with optimal quality, is therefore captured directly on the hard drive. Users can rely onw this, and thus have more time for the essentials.

Acoustic transducer: Pressure gradient transducer
Directional characteristic: Cardioid

Frequency response: 20 Hz to 20 kHz
Free-field sensitivity¹⁾:–39 dBFS
Equivalent noise level, CCIR³⁾: 17.5 dB
Equivalent noise level, A-weighted³⁾: 7 dB-A
Signal-to-noise ratio²⁾, CCIR³⁾: 76.5 dB
Signal-to-noise ratio²⁾, A-weighted³⁾: 87 dB
Maximum SPL at 0 dBFS: 134 dBSPL
Dynamic range, A-weighted⁴⁾: 127 dB

Preset:
- Sampling rates: 44.1, 48 or 96 kHz
- Gain: 10 dB (variable with DMI-2)
- Compressor on, Attack time 100 ms, Release time 0.5 s,
Threshold –10 dBFS, Ratio 2:1

Supply voltage range: +6 V to +10.5 VCurrent consumption: max. 150 mA
Weight: approx. 460 g, Diameter: 60 mm, Length: 132 mm