Decibels vs M

How loud is it, really? The neighbor's bass at 2 a.m. The workshop that leaves your ears ringing. Decibels gives you a number you can trust — and, when you need it, the evidence to back it up. Decibels is a precision sound level meter built like a real instrument: the IEC 61672 mathematics professionals use, per-device calibration verified against a laboratory-validated reference, and a design that shows what the noise is doing, not just how loud it is. A · C · Z WEIGHTING · FAST · SLOW · IMPULSE · Leq · LCpeak · SEL THE REAL MATHS, IN A REAL METER. MEASURE LIKE AN INSTRUMENT Every reading is a true IEC-weighted level. Choose A, C or Z weighting and Fast, Slow or Impulse response. Sessions record the energy-averaged Leq, the loudest moment, the C-weighted peak, sound exposure level (SEL) and the L10, L50 and L90 statistical levels used in environmental noise reports. An overload lamp shows when the microphone is clipping, and readings below the microphone's own floor are flagged, not faked. Fine-tune against any reference meter with the built-in guide. SEE WHAT THE NOISE IS A number says it's loud; the spectrum says it's a fridge compressor, a bass line or a siren. Switch the meter to a live FFT spectrum analyzer, 1/3-octave bands, or a scrolling spectrogram waterfall that paints frequency against time and identifies a sound by its shape. NIGHT MODE Start it at bedtime, set your wake-up time, and put the phone down. In the morning a quiet-hours report shows your night hour by hour: how quiet it was, when the loud moments happened, and how loud they were. Light on battery. KEEP THE EVIDENCE Set a threshold and get notified when noise crosses it. Turn on Evidence Clips and Decibels saves a 30-second recording around each event — 10 seconds before, 20 after — stored only on your phone, playable from the session, and shared only when you choose. Built for noise complaints. PROTECT YOUR HEARING An exposure dosimeter tracks your daily noise dose against NIOSH, OSHA and EU 2003/10/EC limits: dose percentage, time-weighted average and safe time remaining at the current level. Export sessions to Apple Health as environmental audio exposure. ALWAYS WITHIN REACH A Live Activity keeps the meter on your Lock Screen and in the Dynamic Island while you record, Stop button included. Widgets show your last reading and today's dose. Share a session card in one tap, or export CSV data and PDF reports. PRIVATE BY DESIGN No ads. No tracking. No analytics. Audio is analysed on your device and never leaves it unless you share a clip or card yourself. Evidence Clips are off by default and require explicit consent. FREE - Live meter with A/C/Z weighting, Fast/Slow/Impulse response - Leq, Max, Min, C-weighted peak and overload indicator - Calibration trim and reference-meter guide - Sessions with chart, notes, tags and location (last 10) - One threshold alert - Live Activity, widgets, light and dark themes DECIBELS PRO - Unlimited session history - Spectrum analyzer, 1/3-octave bands and spectrogram waterfall - Night mode with quiet-hours reports - Evidence Clips - Exposure dosimeter (NIOSH · OSHA · EU) and Apple Health export - CSV and PDF export, share cards Decibels Pro is available as a yearly subscription or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel subscriptions in your Apple ID account settings. Any unused portion of a free trial period will be forfeited when purchasing a subscription. Privacy Policy: https://realvision.app/privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

专门为效果器的用户打造，我们提供了对效果器的全面控制，包括以下参数： IR：利用我们的应用，您可以轻松切换不同的IR，模拟各种音箱和空间，使您的音乐在任何场景中都表现卓越。 REVERB（混响）：探索各种混响效果，从清晰的室内吉他声音到宏大的音响效果，让您的音乐充满深度和氛围。 DELAY（延迟）：定制音乐中的延迟效果，创造从微妙的回声到令人着迷的空间声音。 MOD（调制效果）：创造令人难忘的声音，包括和声、混音和更多令人惊叹的声音效果。 AMP（放大器）：模拟各种放大器声音，从温暖的管子声音到坚实的晶体声音。 GATE（噪声门控）：消除不必要的噪音，使您的音乐保持干净而清晰。