Native Instruments Battery 4 (ESD); virtual drum sampler; Battery 4 is a software sampler designed for drum and percussion sounds; it is aimed at electronic music producers, sound designers and beatmakers who want to work quickly and precisely with samples; the focus is on efficiency, flexibility and a modern workflow that enables creative real-time operation; Battery 4 offers a visually organized cell matrix, effects, and a modular architecture for spontaneous ideas and complex kit structures; its core is the color-coded cell matrix with drag-and-drop, sample editing and direct MIDI triggering; below the matrix, the waveform editor allows precise sample editing including tuning, panning and start/end point adjustment; frequently used functions such as reverse or key assignment are instantly accessible – even for multiple cells simultaneously; each cell has its own envelopes (AHDSR or AHD), filter and compressor for basic sound shaping; the modulation page allows up to eight modulation paths using LFOs, envelopes and velocity behavior; Effects & Routing: extensive effect section with LoFi, saturation, EQs, compressors, delay, algorithmic reverb and convolution reverb; effects can be applied per cell, bus or globally via the master section; four FX buses allow for parallel or serial routing chains; the setup page lets you configure MIDI inputs, voice groups, round robin modes, articulations, humanizer and MIDI echo; integrated browser with tag system for fast organization and previewing of factory or user samples; slices from REX, Apple or ACID files can be automatically assigned to cells; global functions like CPU meter, master volume, voice limit and tempo sync are located in the header; detailed preference settings for audio, MIDI, rendering, color schemes, kit templates and file locations; Sampler engines: standard, vintage and DFD mode; stretch mode (standard, pro); beat mode with slicing and tempo sync; Effects: Solid G-EQ, 3-band EQ, peak/notch, HP/LP/BP filters; Dynamics: compressor, Transient Master, limiter; FX: LoFi, saturation (Classic, Drums, Tape), delay, algorithmic reverb, convolution reverb; Routing: four FX buses plus master; Modulation: 2 LFOs, modulation envelope, 8 mod slots with invertible modulation depth; Operation & workflow: cell matrix with context menu, customizable layout, quick access to key parameters; Articulations: roll, flam, drag, speed roll, buzz etc.; Voice groups: kill modes, fade, exclusion; Import formats: .nbkt, .nbcl, .kt3, .cl3, .kt2, .cel; WAV (mono/stereo/multichannel), REX1/REX2, ACID WAV, Apple Loops (.aiff/.aif); Additional features: MIDI echo with tune, gravity, sync; Humanize for timing and tonal variation; Batch resave for compatibility with Battery 3 and Maschine