Den stora Thomann Online-Rådgivaren: Software Instruments

7. Latency

‘Latency’ is the term used to describe the amount of time it takes for the computer to generate a sound in response to a command. Practically speaking, it can be the delay between clicking ‘Play’ and playback actually starting, or the time between pressing a key on a keyboard and hearing a sound from the computer. In the days before ASIO, latencies of half a second or more were the norm, which meant that playing anything ‘live’ was impossible. These days, with the right soundcard or audio interface, latencies are commonly so low as to be unnoticeable, and playing sounds on a computer has become as responsive as any other instrument.

Latency is a natural function of computers, a built-in delay which allows the CPU to process information and get it out in an orderly fashion. The delay is caused by a ‘buffer’ which is a small piece of memory where information to be processed is temporarily stored and sorted. As data comes in - in this case representing sound - it fills the buffer, while the CPU processes it and then sends it to the outputs in a constant stream. The larger the buffer, the larger the delay/latency, and the smoother the output. For ‘real-time’ processing though, we want that buffer to be as small as possible, but this puts added pressure on the CPU as it has to work faster to maintain the same smooth output. If the data moves through the buffer too quickly then the CPU may not have time to process it all, and you end up with a glitch or crackle in the audio, so you can see that greater CPU power enables lower latencies, and happily, CPU power has kept on increasing!

When it comes to playing software instruments, a latency of 10ms or less is generally regarded as real-time. To benefit from such low latencies though, it’s essential that you have a soundcard or audio interface with ‘drivers’ designed for the job.

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Software Instruments översikt

Yamaha P-125 BK Boss GT-1000 Marshall Origin 50H Head Reloop RP 4000 MK2 Gator iMac 21" Tote Bag Yamaha L-125 BK Alto TS 315 XVive Wireless System U2 Red Aston Microphones SwiftShield Fender FB1225 bass guitar Gig Bag LD Systems U518 BPH2 Ibanez Classic Guitar Case FS40CL
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Yamaha P-125 BK

Stage Piano Graded Hammer Standard Keyboard (GHS) with 88 weighted keys, Pure CF Sound Engine, 24 Tones, Max. Polyphony: 192 votes, Dual, split and duo function, Two-track recording (one song), 20 Rhythms (drums + bass), Intelligent Acoustic Control, 21...

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555 €
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Boss GT-1000

Multi effect pedal 32-bit AD / DA, 32-bit floating-point processor and 96 kHz sampling rate, New BOSS DSP engine, specially developed for audio applications, AIRD (Augmented Impulse Response Dynamics) brings BOSS's Tube Logic concept to a digital guitar processor,...

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999 €
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Marshall Origin 50H Head

Tube Amp Head for Electric Guitar Gain boost function, Two voicings (Normal, High Treble), which can be mixed continuously via the tilt control, Switchable power reduction for full sound in any environment, 1 Channel, Power: 50 watts, Preamp tubes:...

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645 €
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Reloop RP 4000 MK2

Quartz-driven DJ turntable with high-torque direct drive Speeds (RPM): 33 1/3 - 45 - 78, Pitch with selectable range of +/- 8% and+/- 16%, Reverse function, Connections: 1 PHONO output (gold plated) and 1 GND ground connection, Incl. platter,...

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291 €
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Gator iMac 21" Tote Bag

Nylon Bag Fits 21" Apple iMac Water resistant, Good grip and protection with adjustable foam blocks and hard-panel reinforcement in the front flap, Foldable sun and dust protection, Double zipper, Strap and handle cutouts, Reinforced, detachable carrying handles, PVC...

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120 €
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Yamaha L-125 BK

Yamaha L-125 BK; stand for Yamaha P-125 BK; colour: Black

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127 €
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Alto TS 315

Active Full-range Loudspeaker Equipped with: 15"/ 1.5", Power: 1,000 W RMS/2,000 W peak, Class D power amplifier, Bi - Amp, Frequency response: 43 - 22,000 Hz, Maximum output level: 131 dB, Dispersion pattern: 90° x 60°, 2-channel mixer with...

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369 €
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XVive Wireless System U2 Red

2.4 GHz Wireless System Set with transmitter and receiver - both with battery and without power supply to operate, Built-in, rechargeable lithium battery, Range without obstacles: up to approx. 30 m, Frequency range 20 - 20,000 Hz, Latency: <6...

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130 €
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Aston Microphones SwiftShield

Aston Microphones SwiftShield; Universal Mic Mount and Pop-Filter; Mic Mount Features: without Rubber Bands; fits Mics from 30 to 50 mm Diameter; two quick release spring clips; made of Aluminium, grade glass-fill nylon polymer and medical grade latex ("ShockStar" suspension);...

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88 €
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Fender FB1225 bass guitar Gig Bag

Fender FB1225 bass guitar Gig Bag gig bag for bass guitar, 1200 Denier Polyester, 25mm padding protects your instrument from bumps and dings, Silky-smooth microfiber interior, 2 neck rests hold your instrument securely, Main accessory pocket conceals multiple additional pouches,...

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91 €
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LD Systems U518 BPH2

Dual UHF wireless system with 2 bodypack transmitters 2 Dynamic headset microphones MH1 in black, Directivity: Cardioid, 19" 1U True diversity receiver, Frequency band: 1785 - 1800 MHz, Audio transmission range: 30 - 16,000 Hz, 96 Channels in 8...

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569 €
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Ibanez Classic Guitar Case FS40CL

Ibanez Classic Guitar FS40CL Classic Guitar Case, Tweed cover, foam insert for optimal protection, easy to carry, backpack set, For AEG, PN, AVN, G (except G5TCE, GA35TCE)

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92 €
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