• L-Acoustics releases M1 Suite of measurement and monitoring tools

    In tandem with the recent release of LA Network Manager 3, L-Acoustics takes its sound reinforcement system control and monitoring software to a new level with the introduction of the M1 suite, a comprehensive set of measurement and monitoring tools. From data acquisition through system tuning to live monitoring, M1 harnesses the power of the manufacturer’s P1 processor and amplified controller to deliver a streamlined system calibration process as well as real-time performance monitoring.

    The M1 suite is an industry first, pairing system measurement and control software to work natively as one seamless solution. Providing an original, reliable, and more efficient method for calibration, M1 allows users to expand their capabilities and optimize their time.

    Ideal tuning of a venue requires both data capture and analysis. For most systems on the market, calibration processes typically involve estimating optimum EQ and alignment settings, measuring at a number of mic locations. For each setting, mic placement and capture must be performed multiple times to obtain measurements throughout an entire venue. Any adjustments made to EQ or alignment would naturally require the user to repeat the mic placement and capture process.

    M1 is a dual-channel FFT measurement platform that automates this process—sequentially muting and unmuting different parts of the system that need to be measured (using a fast sine sweep), capturing audio, labeling measurements, and storing data to the proper groups automatically. With M1, mic placement and capture throughout the venue is done only once. Data is acquired and compiled in the software, and measurements can be visualized individually, as spatial averages and sums of elements. If adjustments to EQ are needed, they can be done virtually, and subsequently analyzed and optimized within M1, meaning that the user attains the best calibration for the venue much faster. And once the measurements have been captured, the sound team can even leave the venue and finish the calibration offline, freeing up time and resources for the setup of other production elements.

    When proper calibration has been attained and a performance begins, M1 provides live system monitoring via a Real Time Analyzer (RTA), evaluating the behavior of the system and keeping it optimized at all times. During a show, atmospheric conditions like humidity and temperature can fluctuate; content can vary from pianissimo to forte; crowds ebb and swell, affecting room excitation. Each of these variables can lead to changes in system performance. To compensate, M1’s RTA gives the operator a graphical understanding of the behavior of the system, while LA Network Manager continually analyzes the new atmospheric conditions and proposes corrections accordingly.

    The measurement and control tools within M1 are natively integrated; any changes made to one tool are reproduced in the other and automatically optimized.

    “M1 with LA Network Manager is really the future of system calibration and monitoring,” says L-Acoustics Product and Technology Outreach Manager Scott Sugden. “By integrating a comprehensive measurement platform into our amplifier control software, we very effectively help sound professionals save time, decrease error, and concentrate their skills on creating amazing experiences for their artists and audiences.”

    A video on the new M1 suite can be found online at: https://youtu.be/0H-gWWMphW8
  • Ad

  • Recent articles

    Power amplifier modes : stereo, parallel and bridge mono

    In general, two-channel power amplifiers for professional use default to stereo mode. That is, each amplifier channel receives a signal from its input connector and its volume is controlled by... Read more

    Basic electricity formulas

    Although it not specific to sound, we include this document with some basic electricity formulas. They can be found in any electricity textbook, but we have added them to the DoPA Library for reference.

    Ohm's law

    The most basic formulas derive from Ohm's law, which specifies that the electric current between two points is proportional to the potential difference (voltage) between them and inversely proportional to the resistance between them. The formula is:
    I = ———

    where I is the current (intensity) in amps and V is the voltage in volts. Since we use alternating current in audio, we have replaced resistance with impedance (Z, and this could also be resistance R), measured in ohms. Clearing Z and V we have these other two formulas:

    Z = ———
    ... Read more

    Y-cables, looping audio signals through

    This article will explain loop-though connections and "y-cables" for analog audio signals.

    To obtain one or more copies of a signal (for example, to distribute the signal from a mixer to various self-powered speakers or power amplifiers) we use parallel connections. To do this we simply connect each terminal (pin) of the connectors in parallel. That is, 1 to 1, 2 to 2 and 3 to 3 (or tip to tip, ring to ring and sleeve to sleeve in a TRS connector). When we split a signal in two in this way, we refer to a "Y-cable" or "Y" connection, since the division of a signal in two looks like letter "y". Contrary to what it may seem, a y-cable is not a technically incorrect solution, but a correct way of splitting the audio signal. In fact, when a self-powered loudspeaker system or one channel of... Read more
  • PAcalculate app