SPL Reference

Utility

Solo per iPhone

Gratis · Acquisti in‑app

iPhone

Hear your system. See your room. SPL Reference combines sound-level measurement with Room Map, a new way for Hi-Fi enthusiasts to explore how bass changes across a listening room. Measure at several positions and see areas of relatively high and low sound pressure at the selected frequency, helping you investigate uneven bass and make more informed speaker and listening-position choices. EXPLORE YOUR LISTENING ROOM • Create a rectangular room and follow a guided 9- or 12-point survey, or customise your measurement positions. • Explore frequency-selectable heatmaps with 1/12- or 1/3-octave bands. • Use generated bass pink noise through your playback system, or a stable external pink-noise source. • Review individual points, capture-quality notes and a repeat measurement at the reference position. • Save maps in Sessions, organise them in projects and export the survey data. A COMPANION TO ROOM REFERENCE Use SPL Reference alongside the separately available Room Reference app to add measured spatial bass comparisons to your room investigation. We are working to integrate the two apps; direct integration is not included in this release. MEASURE WITH CONTEXT • Live A-, C- and Z-weighted measurements • Fast, Slow and Impulse time responses • LAeq, LAFmax, LCpeak and time-history views • Pause, resume, event markers and integrity evidence • Clear distinction between indicative readings and reference-calibrated chains ANALYSE AND DOCUMENT • 1/1- and 1/3-octave frequency analysis, spectrum and spectrogram history • Statistical exceedance levels from L1 to L99 • Noise-exposure assessment using NIOSH, OSHA and configurable models • Projects, notes, photographs and optional location evidence • Microphone profiles, acoustic calibration records and drift checks • Professional PDF reports for ordinary sound-level measurements Browse the public measurement archive from inside the app. Measurements are never uploaded automatically. START FREE. UPGRADE ONCE. The free tier includes the built-in microphone, five active measurement minutes per calendar month, two saved measurements and one project. Room Map and advanced features require Lifetime Professional Unlock, which removes the free limits with one purchase and no subscription. Room Map is included for existing Lifetime Professional owners. ABOUT YOUR RESULTS Room maps show the combined response of your speakers and room at one microphone height. Colours compare the selected frequency across measured positions. Uncalibrated maps display relative levels in dBFS. Results depend on the microphone, calibration, playback setup and measurement conditions. SPL Reference distinguishes indicative and calibrated workflows and does not claim that an unvalidated device is a certified sound-level meter. Occupational-noise results support assessment and documentation; they do not replace professional judgement or applicable legal requirements.

Valutazioni e recensioni

  • L’app non ha ricevuto un numero sufficiente di valutazioni o recensioni per poter mostrare una panoramica.

Introducing Room Map for Hi-Fi listening rooms. • Map relative bass levels across your room to reveal areas of higher and lower sound pressure. • Explore frequency-selectable heatmaps with 1/12- and 1/3-octave bands. • Follow guided measurement points, review captures and recheck your reference position. • Save room maps in Sessions, organise them in projects and export survey data. Room Map is included with Lifetime Professional, including existing purchases. Use it alongside Room Reference today. Direct integration between the apps is in development and is not included in this release.

Versione 1.2

Lo sviluppatore, Direct Sound Records Ltd, ha indicato che le procedure per la tutela della privacy dell’app potrebbero includere il trattamento dei dati descritto di seguito. Per scoprire di più, consulta l’informativa sulla privacy dello sviluppatore .

  • Dati collegati a te

    I seguenti dati possono essere raccolti e collegati alla tua identità:

    • Posizione
    • Informazioni di contatto
    • Contenuti dell’utente
    • Altri dati

Le procedure per la tutela della privacy potrebbero variare, ad esempio in base alle funzionalità che utilizzi o alla tua età. Scopri di più

Accessibilità

Lo sviluppatore non ha ancora indicato le funzioni di accessibilità supportate dall’app. Scopri di più

Informazioni

Dimensioni
6,4 MB
Categoria
Utility
Compatibilità
Richiede iOS 17.0 o versioni successive.
  • iPhone
    Richiede iOS 17.0 o versioni successive.
Età
16+
  • 16+
  • Scopri di più
  • Frequente
    Informazioni sul trattamento medico

    Contiene
    Contenuto generato dagli utenti
Acquisti in-app
Sì
Fornitore
DIRECT SOUND RECORDS LTD
  • DIRECT SOUND RECORDS LTD si identificata come operatore commerciale per questa app e ha confermato che il prodotto o il servizio è conforme alla legge dell’Unione europea.
  • Numero DUNS
    233670100
  • Indirizzo
    28 Parry Road
    LONDON
    N/A
    SE25 6RJ
    Regno Unito
  • Numero di telefono
    +44 7831542056
  • Email
    info@directsoundrecords.com
Copyright
© 2026 DIRECT SOUND RECORDS LTD
  • Sito web sviluppatore
  • Informativa sulla privacy

    • Altro da Direct Sound Records Ltd

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