curl --request GET \
--url https://api.tella.com/v1/videos/{id}/background-music/beats \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.tella.com/v1/videos/{id}/background-music/beats"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.tella.com/v1/videos/{id}/background-music/beats', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.tella.com/v1/videos/{id}/background-music/beats",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.tella.com/v1/videos/{id}/background-music/beats"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.tella.com/v1/videos/{id}/background-music/beats")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.tella.com/v1/videos/{id}/background-music/beats")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"beatsMs": [
512,
1012,
1512,
2012
],
"beatsPerBar": 4,
"bpm": 120,
"confidence": 0.86,
"downbeatsMs": [
512,
2512
],
"durationMs": 95200,
"trackDurationMs": 180036
}{
"docsUrl": "https://docs.tella.com/",
"error": "bad_request",
"message": "The request was malformed or contained invalid parameters."
}{
"docsUrl": "https://docs.tella.com/",
"error": "unauthorized",
"message": "Authentication is required. Provide a valid API key."
}{
"docsUrl": "https://docs.tella.com/",
"error": "forbidden",
"message": "You don't have permission to access this resource."
}{
"docsUrl": "https://docs.tella.com/",
"error": "not_found",
"message": "The requested resource was not found."
}{
"docsUrl": "https://docs.tella.com/",
"error": "conflict",
"message": "The request conflicts with the resource's current state, e.g. an Idempotency-Key whose first request is still in progress. Retry once it settles."
}{
"docsUrl": "https://docs.tella.com/",
"error": "rate_limited",
"message": "You have exceeded the rate limit. Please slow down."
}{
"docsUrl": "https://docs.tella.com/",
"error": "server_error",
"message": "An unexpected error occurred"
}{
"docsUrl": "https://docs.tella.com/",
"error": "not_implemented",
"message": "The requested operation is not implemented."
}{
"docsUrl": "https://docs.tella.com/",
"error": "unavailable",
"message": "A dependency was unavailable and the request was not executed. Safe to resend unchanged after the Retry-After delay."
}Get the beats of the background music
Returns the tempo, every beat and every bar’s first beat (downbeat) of the video’s background music, in ms on the video’s playback timeline: the track starts at 0 and restarts every trackDurationMs until the video ends, so the beats repeat with it. Use them to cut, start overlays or animate on the beat. Each track is analyzed once and cached; the first request for a new track can take a few seconds, and answers 503 unavailable if the analysis is still running, so retry.
curl --request GET \
--url https://api.tella.com/v1/videos/{id}/background-music/beats \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.tella.com/v1/videos/{id}/background-music/beats"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.tella.com/v1/videos/{id}/background-music/beats', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.tella.com/v1/videos/{id}/background-music/beats",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.tella.com/v1/videos/{id}/background-music/beats"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.tella.com/v1/videos/{id}/background-music/beats")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.tella.com/v1/videos/{id}/background-music/beats")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"beatsMs": [
512,
1012,
1512,
2012
],
"beatsPerBar": 4,
"bpm": 120,
"confidence": 0.86,
"downbeatsMs": [
512,
2512
],
"durationMs": 95200,
"trackDurationMs": 180036
}{
"docsUrl": "https://docs.tella.com/",
"error": "bad_request",
"message": "The request was malformed or contained invalid parameters."
}{
"docsUrl": "https://docs.tella.com/",
"error": "unauthorized",
"message": "Authentication is required. Provide a valid API key."
}{
"docsUrl": "https://docs.tella.com/",
"error": "forbidden",
"message": "You don't have permission to access this resource."
}{
"docsUrl": "https://docs.tella.com/",
"error": "not_found",
"message": "The requested resource was not found."
}{
"docsUrl": "https://docs.tella.com/",
"error": "conflict",
"message": "The request conflicts with the resource's current state, e.g. an Idempotency-Key whose first request is still in progress. Retry once it settles."
}{
"docsUrl": "https://docs.tella.com/",
"error": "rate_limited",
"message": "You have exceeded the rate limit. Please slow down."
}{
"docsUrl": "https://docs.tella.com/",
"error": "server_error",
"message": "An unexpected error occurred"
}{
"docsUrl": "https://docs.tella.com/",
"error": "not_implemented",
"message": "The requested operation is not implemented."
}{
"docsUrl": "https://docs.tella.com/",
"error": "unavailable",
"message": "A dependency was unavailable and the request was not executed. Safe to resend unchanged after the Retry-After delay."
}Authorizations
API key obtained from your Tella account settings
Path Parameters
Unique video identifier
"vid_abc123def456"
Response
OK
Tempo, beats and bars of a music track, analyzed once per track and cached
Every beat, in ms: on the video's playback timeline for background music (the same times as get_timeline), in source time for a source
x >= 0[512, 1012, 1512, 2012]
Beats in each bar: 4, or 3 for a waltz-like meter
-9007199254740991 <= x <= 90071992547409914
Tempo in beats per minute. 0 when the track has no beat at all
x >= 0120
How clearly the track has a pulse, 0 to 1. Steady produced music is usually above 0.4; beatless ambient music below 0.1, where the beats are only a guess
0 <= x <= 10.86
The first beat of every bar, a subset of beatsMs. Cut or start a motion on these for the strongest musical accents
x >= 0[512, 2512]
Length of the timeline the beats are on: the video's playback duration for background music, the source's duration for a source
x >= 095200
Length of one pass of the track. Background music restarts after it, so its beat grid restarts too
x >= 0180036
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