torch-harmonics

by NVIDIA

Spherical signal transforms — used in advanced ASR research.

Looking at torch-harmonics? Try this first.

Drop your audio. Transcript in seconds. First transcript free, then $4 = 300 min

TL;DR

Best for research workloads adapting spherical transforms to speech. Pricing: free.

Category
Open source
License
NOASSERTION
Stars
★ 691
Last push
2026-08-07
Pricing
free
Platforms
Linux

What it is

NVIDIA's library for differentiable spherical harmonics. BSD-3-Clause.

Best for: Research workloads adapting spherical transforms to speech.
Watch out for: Niche; not an ASR engine.

Install / use

pip install torch-harmonics

Features

Speaker diarizationNo
Word-level timestampsYes
Streaming / real-timeNo
Languages supported1
HIPAA eligibleNo

Links

GitHub repo ↗

torch-harmonics vs Whipscribe

Featuretorch-harmonicsWhipscribe
CategoryOpen sourceTranscription APIs
Pricingfree$4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup
Speaker diarizationNoYes
Word timestampsYesYes
StreamingNoNo
Languages199
PlatformsLinuxWeb, API, MCP

Alternatives to torch-harmonics

OpenAI Whisper
OpenAI

The reference open-source multilingual ASR model from OpenAI.

OSS · MIT ★ 107.0k
whisper.cpp
Georgi Gerganov

C/C++ port of Whisper — runs on anything, from a Raspberry Pi to Apple Silicon.

OSS · MIT ★ 52.8k
faster-whisper
SYSTRAN

4× faster than reference Whisper using CTranslate2 — production sweet spot.

OSS · MIT ★ 24.8k

Whipscribe is a managed faster-whisper + whisperX service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.