Bar / measure duration
API · /tempo-api
Tempo & BPM API
Musical timing maths as an API — turn a tempo into exact times. The durations endpoint gives the length of every note value (whole down to sixty-fourth, plus dotted and triplet variants) at a given BPM, in milliseconds, in hertz, and in samples at your sample rate. The delay endpoint is the producer's note-to-millisecond tool: the delay and reverb times for 1/1 to 1/32 (straight, dotted and triplet) so time-based effects lock to the tempo. The bar endpoint gives the duration of a bar for any time signature. The convert endpoint turns BPM into milliseconds per beat (and back) and names the Italian tempo marking — Largo, Adagio, Andante, Moderato, Allegro, Presto and the rest. Everything is computed locally and deterministically, so it is instant and private. Ideal for DAWs and music-production tools, drum machines and sequencers, delay and echo plug-ins, metronomes, and audio apps. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 4 endpoints. This is tempo and rhythm timing; for notes, intervals, chords and scales use a music-theory API.
API salute
salutare- Tempo di attività
- 100.00%
- Sondaggi del server · 24 ore su 24
- Latenza media
- 84 ms
- Sondaggi del server · 24 ore su 24
- Abbonati
- 3,054
- attiva
- Chiamate totali
- 70
- ultimi 7 giorni
Prezzi
Scegli un livello: fatturazione mensile, annullamento in qualsiasi momento.
Free
Gratis
- 7,735 chiamate/mese
- 2 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 7,735 calls/month
- 2 req/sec
- Durations + delay + bar + convert
- No credit card
Starter
€9.25 /mese
- 17,250 chiamate/mese
- 8 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 17.25k calls/month
- 8 req/sec
- ms / Hz / samples
- Email support
Pro
€29.15 /mese
- 223,500 chiamate/mese
- 20 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 223.5k llamadas/mes
- 20 req/seg
- Cadenas de DAW / plug-in
- Soporte prioritario
Mega
€67.15 /mese
- 1,160,000 chiamate/mese
- 50 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 1.16M llamadas/mes
- 50 req/seg
- Escala de plataforma
- SLA dedicado
Costruito da
Correlato APIs
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Vinyl Record API
Vinyl-record geometry maths as an API, computed locally and deterministically — the playing-time, groove-length and groove-speed numbers a cutting engineer, pressing plant or audio hobbyist works a record out with. The playing-time endpoint gives a side's maximum time = the number of groove turns ÷ the turntable speed, where the turns = the recorded band's radial width ÷ the groove pitch (the spacing between adjacent grooves): a 12-inch LP with ~85 mm of band at a 100 µm pitch holds about 850 turns, so at 33⅓ rpm that is roughly 25 minutes a side — a tighter pitch fits more time but cuts groove amplitude and so loudness and bass, the classic time-versus-level trade. The groove-length endpoint unrolls the spiral: length ≈ turns × the mean circumference (π × the average of the outer and inner diameters), on the order of 400–500 metres for an LP side, the whole of which the stylus traces once. The groove-speed endpoint gives the linear speed under the stylus = 2π × rpm/60 × radius, so the outer grooves of an LP pass at about 50 cm/s but the inner ones only ~20 cm/s — the cause of inner-groove distortion and why engineers place quieter tracks last. Everything is computed locally and deterministically, so it is instant and private. Ideal for record-cutting and mastering tools, hi-fi and collector apps, and audio-engineering calculators. Pure local computation — no key, no third-party service, instant. 3 compute endpoints. For musical note and tempo maths use a music API.
api.oanor.com/vinyl-api
API de Resonador Helmholtz
Acústica de resonador Helmholtz como API, calculada local y determinísticamente. El endpoint de frecuencia calcula la frecuencia de resonancia de un resonador Helmholtz — una cavidad con un cuello, como una botella o una caja de altavoz portada — a partir del área del cuello (o diámetro), la longitud del cuello y el volumen de la cavidad, f = (c/2π)·√(A/(V·L_eff)), añadiendo la corrección acústica de extremo (aproximadamente 0.85·radio para un extremo con brida y 0.61·radio para un extremo libre) de modo que un cuello corto o abierto resuena más bajo de lo que sugiere su longitud física. El endpoint de diseño invierte la relación, V = A·c²/(L_eff·ω²), para dar el volumen de cavidad necesario para sintonizar un resonador o una cámara de silenciador a una frecuencia objetivo. El endpoint de sintonización de puerto dimensiona un puerto de caja bass-reflex (altavoz ventilado) en unidades de audio prácticas — a partir del volumen de la caja en litros y el diámetro del puerto en centímetros da la frecuencia de sintonización para una longitud de puerto dada, o la longitud de puerto requerida para una frecuencia de sintonización objetivo, usando la corrección de extremo de 0.732·diámetro. Los endpoints principales usan unidades SI; la velocidad del sonido por defecto es 343 m/s. Todo se calcula local y determinísticamente, por lo que es instantáneo y privado. Ideal para desarrolladores de aplicaciones de audio, diseño de altavoces, instrumentos musicales, silenciadores y tratamiento acústico, herramientas de bass-reflex y resonadores, y educación en acústica. Cálculo local puro — sin clave, sin servicio de terceros, instantáneo. En vivo, nada almacenado. 3 endpoints. Esto es resonancia Helmholtz; para reverberación de sala use una API de reverberación y para ondas estacionarias en cuerdas y tubos una API de ondas estacionarias.
api.oanor.com/helmholtz-api
Sound Level API
Acoustics and decibel maths as an API. The decibel endpoint converts between a linear ratio and decibels, in either the power convention (10·log₁₀) or the amplitude/pressure convention (20·log₁₀), in both directions. The combine endpoint adds sound levels the way real (incoherent) sources combine — by energy summation, so two equal 80 dB sources give 83 dB, not 160 — and can also subtract a known source from a measured total. The distance endpoint applies the inverse-square law to a point source in a free field (−6 dB per doubling of distance) to find the level at a new distance. The wavelength endpoint converts between frequency and wavelength for sound, deriving the speed of sound from the air temperature (or a value you provide). Everything is computed locally and deterministically, so it is instant and private. Ideal for audio engineering and live sound, room and architectural acoustics, noise assessment and environmental monitoring, and physics teaching. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 5 endpoints. This is acoustics maths; for electrical circuits use an Ohm's-law API and for general unit conversion use a unit API.
api.oanor.com/soundlevel-api
SoundCloud API
Read SoundCloud in real time — no login or key needed. Full-text search across everything or specifically tracks, users and playlists; resolve any soundcloud.com URL to its object; and fetch a track's detail and comments, a user's profile, their tracks, playlists, likes, followers and following, a playlist's detail, and the trending charts by genre. Tracks, users and playlists are addressed by numeric id (from search/resolve). The public web client_id is resolved automatically and refreshed on expiry; every call is live (no cache) and returns the upstream SoundCloud shape, paginated with limit + offset. 16 endpoints. Built for music discovery, artist and audience analytics and audio content aggregation. A SoundCloud (creator audio) data API — distinct from the Music API (Deezer commercial catalog). No upstream key, no cache.
api.oanor.com/soundcloud-api
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Tempo & BPM API è conforme al GDPR?
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Frammenti di codice
Iscriviti per ottenere una chiave API, quindi chiama qualsiasi percorso sotto il tuo slug.
curl https://api.oanor.com/tempo-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/tempo-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/tempo-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
"https://api.oanor.com/tempo-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())
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