Mavila Consulting
Mavila Consulting

Annotator - General Audio

Mavila Consulting

Annotator - General Audio

AI Trainer / Data AnnotatorBrazilBangladeshColombiaEgyptGhanaIndiaTurkeyIndonesiaMid-levelRemote
Audio TranscriptionAudio CaptioningLinguisticsAudio ProductionVoice AnalysisAccent Recognition

Role Overview:

We are seeking detail-oriented listeners with hands-on experience in audio captioning, transcription, audio production, or voice and linguistic analysis. This role supports the development and benchmarking of audio-capable Large Language Models (LLMs) by producing precise, evidence-based descriptions of speech, non-speech sounds, and mixed audio scenes. You will help ensure AI-generated captions reflect what is actually audible, not what a video, topic, or draft wording implies.

Required skills and qualifications:

  • Experience in audio captioning (ideal), transcription, or audio annotation.
  • Background in linguistics, voice analysis/coaching, or audio production is preferred.
  • Native-level written English with the vocabulary to describe voices and sounds precisely and concisely.
  • Ability to distinguish English accents and recognize other languages.
  • Strong listening acuity: able to hear quiet, brief, overlapping, and changing details and separate individual sources.
  • Describes sound in everyday words: what it sounds like, how loud it is relative to other sounds, and when it starts, stops, or changes.
  • Sustained focus and consistency across long batches.

Task Overview:

  • Listen critically to audio clips and write clear, concise, natural English descriptions of voices, sounds, and scene changes, without adding unsupported assumptions.
  • Transcribe English speech faithfully, including repetitions, fillers, and names, and flag lines spoken in another language.
  • Track who speaks when, attributing each line to the correct speaker through overlaps, interruptions, and group speech, and recognize when a new voice enters.
  • Describe how each voice sounds and how its delivery changes (pitch, voice quality, loudness, pace, emotion, intonation), judging delivery from the sound rather than the meaning of the words.
  • Identify, count, and time non-speech vocal sounds (laughs, coughs, sneezes, sobs, gasps, breaths) and other sounds by texture, attack, distance, and relative level, distinguishing discrete events from continuing ambience.
  • Judge which sounds stand out or mask others, and whether a voice or sound belongs to the recorded scene or was added over it (narration, playback, an added music bed).
  • Place onsets, offsets, speaker changes, overlaps, and gradual transitions accurately.
  • Review machine-generated drafts critically, catching invented, missing, mistimed, or misattributed content.
  • Apply consistent judgment throughout each clip and across each batch.

Offer Details:

  • Remote
  • Full-time dedication: 40 hours per week with 4 hours PST overlap
  • Location: Bangladesh, Brazil, Colombia, Egypt, Ghana, India, Indonesia, Turkey.
  • Engagement Length: 6 weeks

Please note: This position is paid on a task based model. The hourly rate listed in this form is only an estimated average to provide compensation context. The final payment will depend on the tasks completed.

Important note: Due to the high volume of applications, we are unable to provide individual feedback at this stage. Only candidates shortlisted for the next steps will be contacted by our team.

Posted 11/6/2026