BytePlus Voice and Background Audio Separation

docs.byteplus.com

From $0.01/mo WebmacOSLinuxAPISelf-hosted

Spec score 8.8 #4 of 23 in AI Voice Isolators

What it is

BytePlus Voice and Background Audio Separation is an API service that processes audio or video files into vocal and background tracks. Drama and Narrate scenes can further separate vocals, music and sound effects. BytePlus lists video editing, vocal enhancement, video translation and voice cloning, and ASR optimization as use cases. Requests create asynchronous separation tasks, checked through polling or event notifications. Inputs must be publicly accessible HTTP or HTTPS URLs, with MP4, FLV, TS, AVI, MOV, WMV, MKV, MP3, M4A and WAV supported. Outputs can be AAC, MP3, WAV, M4A or FLAC, with AAC as the default; result URLs remain valid for 24 hours. The listed plan costs $0.01 as a one-time purchase, billed per minute of input source duration. Storage and VOD CDN distribution may add fees. The service is available through API, Linux, macOS and web, with Console, CLI and OpenAPI deployment methods.

Spec sheet

What it does: Separates an uploaded audio or video file into independent vocal and background-audio tracks using deep-learning and spectral-analysis processing.Read 15 Oct 2026 · docs.byteplus.com
Security: BytePlus says uploaded data is encrypted in transit using TLS and describes encryption options for data at rest.Read 5 Oct 2026 · byteplus.com
Compliance: BytePlus lists certifications including ISO 27001, ISO 27017, ISO 27701, ISO 27018, CSA STAR, SOC 2, and PCI DSS.Read 5 Oct 2026 · byteplus.com
Support: The documentation links to BytePlus contact support and contact sales.Read 5 Oct 2026 · docs.byteplus.com
Headquarters: SingaporeRead 28 Sep 2026 · docs.byteplus.com
Founded: 2021Read 28 Sep 2026 · docs.byteplus.com
Accepted audio formats: Documented audio inputs include MP3, M4A, WAV, AAC, WMA, AMR, OGG, and FLAC; the MediaKit quickstart highlights MP3, M4A, and WAV.Read 15 Oct 2026 · docs.byteplus.com
Accepted video formats: Documented video inputs include MP4, FLV, TS, AVI, MOV, WMV, and MKV, with a broader VOD list also including formats such as RMVB, MPEGTS, WEBM, and MXF.Read 15 Oct 2026 · docs.byteplus.com
Additional VOD fees: BytePlus VOD says storage charges may apply to source and generated files, and CDN distribution fees may apply when using VOD CDN acceleration.Read 5 Oct 2026 · docs.byteplus.com
API workflow: The AI MediaKit workflow submits an asynchronous separation task that can be checked by polling or event notification.Read 5 Oct 2026 · docs.byteplus.com
Asynchronous workflow: Clients submit a task, receive a task identifier, then poll task status or subscribe to completion events.Read 15 Oct 2026 · docs.byteplus.com
Developer documentation: BytePlus supplies step-by-step quickstarts, cURL examples, request and response schemas, limits, related APIs, and event-notification guidance.Read 15 Oct 2026 · docs.byteplus.com
Download URL lifetime: MediaKit result URLs for separated tracks are documented as valid for 24 hours.Read 15 Oct 2026 · docs.byteplus.com
Event integration: Completion callbacks use the ExecutionComplete event after an event-notification endpoint is configured.Read 15 Oct 2026 · docs.byteplus.com
Independent review: platform positioning: Review Beans characterizes BytePlus as an enterprise AI and cloud platform launched in 2021 with models, cloud infrastructure, vector databases, analytics, security, and developer tools.Read 15 Oct 2026 · reviewbeans.com
Independent review: product scope: Dupple describes BytePlus as a broad ByteDance cloud and AI platform covering cloud infrastructure, media services, analytics, recommendation, and generative models.Read 15 Oct 2026 · dupple.com
Input access requirement: The MediaKit endpoint requires a publicly reachable HTTP or HTTPS media URL.Read 15 Oct 2026 · docs.byteplus.com
Input requirement: The AI MediaKit guide supports publicly accessible HTTP or HTTPS URLs and lists MP4, FLV, TS, AVI, MOV, WMV, MKV, MP3, M4A, and WAV input formats.Read 5 Oct 2026 · docs.byteplus.com
Licence and ownership: The terms assign service intellectual property to BytePlus or third-party owners and prohibit actions that would place the service or related materials in the public domain or make them open source.Read 15 Oct 2026 · docs.byteplus.com
Limit: engineering effort: Dupple says recommendation products require customer-built user, product, event, and impression data pipelines rather than a drop-in widget.Read 15 Oct 2026 · dupple.com
Limit: pricing transparency: Dupple reports that some BytePlus products are sales-led and that pricing can be difficult to compare without contacting sales or using the console.Read 15 Oct 2026 · dupple.com
Limit: quota and access complaints: Trustpilot reviewers report quota being consumed faster than expected, gated features or verification requirements, and paid generation attempts failing.Read 15 Oct 2026 · trustpilot.com
Limit: refunds and billing complaints: Trustpilot reviewers repeatedly report unexpected charges, difficult cancellation, non-refundable credits, and trouble obtaining refunds or support.Read 15 Oct 2026 · trustpilot.com
Maker headquarters: LinkedIn lists Singapore as BytePlus headquarters and gives 1 Wallich Street, Guoco Tower, Singapore as its primary location.Read 15 Oct 2026 · linkedin.com
Maker history: BytePlus says its idea originated in 2018 and that the brand officially launched in March 2021.Read 15 Oct 2026 · byteplus.com
Maker legal name: The corporate site identifies the company as BytePlus Pte Ltd.Read 15 Oct 2026 · byteplus.com
Maker size: LinkedIn places BytePlus in the 51–200 employee band and displays 206 discoverable employees.Read 15 Oct 2026 · linkedin.com
Output formats: The guide lists AAC, MP3, WAV, M4A, and FLAC as output formats, with AAC as the default.Read 5 Oct 2026 · docs.byteplus.com
Output tracks: The standard result contains separate vocal and background tracks, normally delivered as AAC files.Read 15 Oct 2026 · docs.byteplus.com
Output-format options: The API supports AAC, MP3, WAV, M4A, and FLAC output, with AAC as the default in the MediaKit documentation.Read 15 Oct 2026 · docs.byteplus.com
Praise: breadth: Dupple praises the breadth of first-party compute, databases, networking, CDN, media, analytics, recommendation, and model services.Read 15 Oct 2026 · dupple.com
Public API: The MediaKit exposes POST /api/v1/tools/separate-voice and GET /api/v1/tasks/{task_id} endpoints using a Bearer API key.Read 15 Oct 2026 · docs.byteplus.com
Rating on Trustpilot: 1.8 out of 5 from 20 reviews.Read 15 Oct 2026 · trustpilot.com
Regional API limitation: The documented StartExecution audio-separation API currently supports Asia Pacific (Johor) and excludes Asia Pacific (Singapore).Read 15 Oct 2026 · docs.byteplus.com
SDK availability: BytePlus provides an API SDK catalog with product-specific import instructions, including Java SDK repositories.Read 15 Oct 2026 · api.byteplus.com
Security certifications: BytePlus lists ISO 27001/27017/27018/27701, SOC 1/2/3, PCI DSS, CSA STAR, MTCS Level 3, DPTM, APEC CBPR, and APEC PRP coverage on its trust center.Read 15 Oct 2026 · byteplus.com
Security controls: The trust center states that data is encrypted in transit with TLS, customer data is isolated, access requires permission, and deletion follows customer instructions and BytePlus policies.Read 15 Oct 2026 · byteplus.com
Temporary result URLs: The AI MediaKit guide says the separated audio download URLs are valid for 24 hours.Read 5 Oct 2026 · docs.byteplus.com
Three-track scenes: Drama and Narrate scenes can output vocals, music, and sound effects as separate tracks.Read 5 Oct 2026 · docs.byteplus.com
Three-way separation: Drama and Narrate scenes can produce vocal, music, and sound-effects tracks instead of only two tracks.Read 15 Oct 2026 · docs.byteplus.com
Use case: ASR: BytePlus says cleaner extracted vocals can reduce interference and improve automatic-speech-recognition accuracy.Read 15 Oct 2026 · docs.byteplus.com
Use case: editing: Independent vocal and background tracks allow dialogue-level volume changes and background-music replacement during video editing or repurposing.Read 15 Oct 2026 · docs.byteplus.com
Use case: translation and cloning: The extracted original voice can be used for voice cloning in translated video workflows while retaining vocal timbre and intonation.Read 15 Oct 2026 · docs.byteplus.com
Use case: vocal enhancement: BytePlus positions separated vocals for volume improvement, quality enhancement, and noise reduction in recordings such as lectures and podcasts.Read 15 Oct 2026 · docs.byteplus.com
Use cases: BytePlus lists video editing, vocal enhancement, video translation and voice cloning, and ASR optimization as application scenarios.Read 5 Oct 2026 · docs.byteplus.com
VOD OpenAPI alternative: BytePlus VOD also documents StartExecution and GetExecution APIs, with AudioExtract and Voice=true task parameters.Read 15 Oct 2026 · docs.byteplus.com

Plans and prices

Voice and background audio separation $0.01, paid once Per minute of input source file duration Audio or video input · Separate charge; storage and distribution may incur additional fees Read 5 Oct 2026 · docs.byteplus.com

Voice and background audio separation pay-as-you-go $0.01 a month per input minute Audio/video duration billing · storage and CDN distribution billed separately Read 15 Oct 2026 · docs.byteplus.com

Every BytePlus Voice and Background Audio Separation plan and price →

Strong points and limits

Strong points

Separates audio and video sources
Drama and Narrate offer three tracks
Supports common media input formats
Provides five output formats
Asynchronous API with polling or events

Limits

Input URLs must be publicly accessible
Download links expire after 24 hours
Storage and distribution may add fees
No free plan is listed

Who it suits

It suits developers and media workflows that need separated vocal and background tracks. Listed scenarios include editing, enhancement, translation, voice cloning and speech-recognition optimization.

Verdict

BytePlus provides format-flexible, asynchronous track separation with specialized three-track scenes. Buyers should budget the per-minute charge and possible storage or distribution fees, while designing around temporary result URLs.