Buzz: Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper. Voiso: Voiso is a cloud contact-center platform with AI speech analytics that transcribes calls into searchable text, scores conversations, and generates automatic call summaries. The right pick comes down to team size, budget, and the workflows you want to automate.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Buzz when transcribing recorded meetings, interviews, podcasts, or lectures offline matters most, and Voiso when sales and support managers scoring agent performance and coaching from call summaries matters most. Run both through a week of actual calls to see which suits your workflow.
Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper.
Voiso is a cloud contact-center platform with AI speech analytics that transcribes calls into searchable text, scores conversations, and generates automatic call summaries.
Buzz is a widely used open-source desktop application that transcribes and translates audio offline on the user's personal computer, powered by OpenAI's Whisper. It is MIT-licensed and actively maintained, with v1.4.4 released in March 2026, and it has grown a large community with roughly 19.7k GitHub stars. Buzz runs on macOS, Windows, and Linux, with installation options including Flatpak, Snap, and PyPI. It supports both importing existing audio and video files and real-time transcription from microphone input, and it can export results in formats such as TXT, SRT, and VTT for subtitling and documentation. The app includes an advanced transcript viewer with search and playback controls, a watch folder for automatically transcribing new files, and a command-line interface for automation. It offers GPU acceleration through CUDA for Nvidia cards, Apple Silicon support, and Vulkan for many other GPUs, which makes faster transcription practical even on laptops. Buzz also provides speaker identification and speech separation for noisy audio, plus a plugin system that adds capabilities like AI-generated summaries. Because all processing happens locally, recordings and transcripts remain on the user's machine rather than being uploaded to a cloud service. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Voiso is a cloud-based contact-center platform built for sales and customer-service teams, combining voice, SMS, and messaging channels with AI-driven analytics in a single workspace. Its speech analytics suite processes recorded call audio through speech-to-text and natural-language pipelines, transcribing calls into searchable text across more than ten languages, including English, Spanish, French, and Arabic. Transcripts can be navigated, searched, and flagged against predefined or custom keyword lists to support quality assurance, compliance, and agent training. Beyond raw transcription, the platform applies AI to score conversations on a 1-to-5 scale, detect sentiment and emotional cues, and automatically generate concise call summaries that capture key topics and outcomes without reviewing full recordings. It is aimed at call centers, BPOs, and outbound and inbound teams in industries such as fintech, travel, retail, and e-commerce. Other platform capabilities include a predictive dialer, IVR and routing flow builder, CRM integrations, call recording, and real-time performance dashboards. Speech analytics features are available on its Pro plan and higher.
Best suited for
Buzz is a free tier with paid upgrades (freemium); Voiso is a free tier with paid upgrades (paid). Always confirm current pricing on each vendor's site before buying.
| Feature | Buzz | Voiso |
|---|---|---|
| Core capability | Offline transcription and translation using OpenAI's Whisper | AI call transcription converting audio into searchable text in 10+ languages |
| Standout feature | Real-time transcription from microphone input | AI conversation scoring rating calls on a 1-to-5 scale across languages |
| Team usage | Speaker identification and speech separation for noisy audio | Sentiment and emotion analysis detecting tone and customer satisfaction cues |
| Integrations | Exports to TXT, SRT, and VTT | Automatic call summaries highlighting key topics and outcomes |
| Languages & capture | Watch folder for automatic transcription and a command-line interface | Keyword highlighting with custom lists for compliance and QA flagging |
| Best-fit workflow | GPU acceleration via CUDA, Apple Silicon, and Vulkan | Call recording with real-time dashboards and performance reporting |
Buzz
Choose Buzz if you need transcribing recorded meetings, interviews, podcasts, or lectures offline — strengths include fully offline so audio and transcripts stay on the user's computer.
Voiso
Choose Voiso if you need quality assurance and compliance teams reviewing transcribed, keyword-flagged calls — strengths include transcription and analytics are integrated directly into the contact-center workflow, including recording, dialing, and routing.
Buzz
Voiso
It depends on your workflow. Buzz is strong for transcribing recorded meetings, interviews, podcasts, or lectures offline, while Voiso is strong for quality assurance and compliance teams reviewing transcribed, keyword-flagged calls. Both transcribe and summarize meetings.
Buzz is a free tier with paid upgrades and Voiso is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Often yes: teams combine tools when one handles capture and another handles analysis.
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