Truly a multi functional unit, the msi-3300 television audio processor offers analog and digital inputs and outputs. MSI 3300 is a "smart" processor, designed for broadcasting.
Setup is a snap and the 3300 offers superb, wide, dynamic gain riding and limiting at affordable prices.
The MSI-3300 Conditions audio for transmission in any medium:
- Cable modulators
- Satellite uplinks
- Fiber modulators
- STL’s and other microwave channels
- Aural transmitters
- Cable stereo generators
- Perceptional coders, such as MPEG and Dolby AC3 and E.
- Telco lines
- Behaves like a human operator
The built-in automatic gain riding feature enhances as well as reduces gain in your audio, depending upon the program content. During consistent programming, 3300 levels out the varying audio levels, during silence the 3300 freezes the gain, it can also sense dramatic fades and allows them and doesn't track slow fades into the noise floor. It's like having an additional audio operator.
- TV Program Material Varies
The varieties of audio are endless. In order to process them all, an operator has to continually switch the audio or you can use an MSI-3300 and it will do the job for you.
- Cable and Satellite Feeds
- Ideal for a Digital/Analog Dual Mode Station
- Simple Set-up
- Front Panel Display
- Front Panel Controls
- Internal Controls
- AGC Gain Reductions and Enhancement
- High Frequency Limiting
- Left/Right Correlation
- Alarm - Input Polarity Reversal
- Left & Right Inputs
- Analog and Digital Inputs and Outputs
- Simultaneous Analog and Digital Outputs
AC MAINS
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22VA, 115 VAC
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108-122/216-244 VAC, 50/60 Hz
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INPUTS
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Nominal input level (APL): -24 dBu, minimum
Impedance: 600 Ohms as shipped, balanced 30K (internal option), balanced
Connectors: XL-3 Female
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Format: AES3-id, transformer coupled
Sample rate: 32-48 KSPS (auto sample rate converter)
Word length: 24 bit max (internal I2S)
Connector: BNC
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Selection:
Valid digital input is taken. Invalid or no digital input takes analog input. An internal jumper can force analog
selection.
OUTPUTS
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Nominal output level (peak, with control): +10 dBu, +10 dBm/600 Ohms
Maximum output level (peak): +18 dBu, +18 dBm/600 Ohms
Adjustment range: 20 dB
Source impedance: <50 Ohms, balanced & floating
Connectors: XL-3 Male
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Format: AES3-id, transformer coupled
Sample rate: 48 KSPS
Word length: 24 bit
Connector: BNC
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GAIN CONTROL
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Analog: Adjustable
Digital: 10.6 dB
Processing gain with respect to static gain: +10 dB max -10 dB min indicated approx -20dB possible
Assumed digital APL: -16.4 dBFS on input
Range of threshhold adjustment: 3dB
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ADAPTIVE PRE-EMPHASIS CONTROL
(This is an internally jumper selected control option.)
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75 microseconds
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Variable
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0-6dB above wideband
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FIXED OUTPUT DE-EMPHASIS (This is an internally jumper selected option.)
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75 microseconds
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METER INDICATIONS
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L only with 10dB peak marker R only with 10dB peak marker L&R together
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L only with +10dBu marker R only with +10dBu marker L&R together
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Log peak of Input (L-R) Log peak of Output (L-R)
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Operating gain over range of +10 to —10 dB
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High frequency gain (15kHz) From 0dB to approx —17 dB
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HFL not enabled Digital input selected Pre-emphasis enabled
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Input polarity reversed
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MECHANICAL
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EIA 19" rack, 1U high
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16"(406mm) plus connectors
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Approx 6 kg (13 lbs)
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ELECTRICAL PERFORMANCE
Frequency Response
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+/-0.5dB, 30Hz-14kHz
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+/-0.5dB, 50Hz-14kHz
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-3dB at 30 z/18dB/oct (The HPF can be bypassed)
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Notes: The unit incorporates a 15.7kHz notch filter and BTSC system alias protection
LPF. These filters are always present in both the analog and digital input paths
The same tolerance is met when the HFL is engaged along with the fixed output de-emphasis option, with control off. With
control on, the input level must be reduced below the HFL theshhold, in which case the tolerance is also met.
With HFL engaged and no output de-emphasis, the 75usec pre-emphasis is accurate to a smaller tolerance (typically +/-0.2
dB), with control off or at level below HFL threshold.
(THD+noise): Either input to Digital output at -1dBFS <0.1%,
30Hz-14kHz
Either input to Analog output at +10dBu <0.1%, 30Hz-14kHz
Crosstalk: Analog inputs to either outputs >50dB, <10kHz
Digital inputs to either outputs >55dB, <10kHz
Output noise: Either inputs to Digital out -83dBFS
Either inputs to Analog out -72dBu