How to Record a Good Voice Sample on Your Phone

To record a good voice sample, find a quiet room with soft furnishings, place your phone or laptop about 30 to 50 cm from your mouth, switch off fans and notifications, and speak at your normal volume and pace. Do a short test, listen back, and adjust before your real recording. That is most of it, and none of it needs special equipment.

This guide explains each step in more detail, with tips specific to contributing Tamil speech to the Eelam Lab contribution studio, where your recordings help train Nila (நிலா, nilā, "moon"), the Tamil language model we are building from scratch.

#Why recording quality matters (and why it does not need to be perfect)

When you contribute your voice, the recording becomes training data. A model learns from what it hears. If the audio is buried in noise, clipped, or mostly silence, it teaches the model very little.

That said, we are not looking for studio recordings. Speech technology has to work in real homes, kitchens and cars, so a natural recording made in an ordinary room is genuinely useful. The goal is simple: your voice should be clearly the loudest, clearest thing in the recording.

If you want to understand why this data matters so much for Tamil, our article on what makes a good Tamil speech dataset explains the bigger picture.

#How to record a good voice sample: step by step

#1. Choose the right room

Rooms with hard, bare surfaces (tiles, glass, empty walls) make your voice bounce around and sound echoey. Rooms with soft things absorb sound.

Good choices:

• A bedroom with curtains, a bed and a carpet
• A living room with sofas and cushions
• A wardrobe or closet full of clothes (surprisingly excellent)

Rooms to avoid if you can:

• Bathrooms and kitchens with tiles
• Large empty rooms
• Rooms next to a busy road

A quick test: clap once. If you hear a ringing echo after the clap, try a different room or add soft items like blankets and pillows nearby.

#2. Remove background noise

Before recording, take a minute to listen to the room. You may notice sounds you normally tune out.

• Turn off fans, air conditioners and heaters if it is safe and comfortable to do so
• Turn off the television, radio and music
• Close windows facing the street
• Move away from fridges, washing machines and fish tanks
• Ask others in the house for a few quiet minutes

Some background sound is fine, and occasional noises (a bird outside, a distant car) are not a problem. Constant, loud noise is what to avoid.

#3. Place your phone or laptop correctly

Microphone placement makes the biggest single difference to quality.

• Distance: about 30 to 50 cm from your mouth, roughly the length of a forearm. Too close and your breath and "p" sounds pop. Too far and the room sound takes over.
• Height: level with your mouth or slightly below. Stack books under the phone if needed.
• Stability: rest the device on a table or stand rather than holding it. Hands create rustling and handling noise.
• Direction: find where the microphone is (usually at the bottom edge of a phone) and make sure it faces you and is not covered by a case or your fingers.
• Angle: speaking slightly across the microphone rather than straight into it reduces popping sounds.

If you have wired earphones with a built-in microphone, they can work well too. Clip the microphone to your collar so it does not rub against clothing.

#4. Prepare your device

• Switch on do-not-disturb so calls and notifications do not interrupt. (Avoid full flight mode when recording in the browser, because you need an internet connection to upload your clip.)
• Close other apps that might use the microphone.
• Check you have enough battery.
• When your browser asks for microphone permission, allow it.

#5. Do a test recording

Record 10 to 20 seconds of yourself speaking normally, then listen back with earphones if possible. Check for:

• Clarity: can you understand every word easily?
• Volume: is it comfortable, not faint and not distorted or crackly?
• Echo: does it sound like you are in a cave?
• Noise: is there a hum, hiss or buzz under your voice?

Adjust and test again if anything sounds off. This minute of testing saves a lot of wasted recordings.

#6. Speak naturally

• Use your normal speaking volume. There is no need to shout or whisper.
• Keep a steady distance from the microphone. Try not to turn your head away mid-sentence.
• Speak at your natural pace. Slowing down unnaturally can make speech sound less like real Tamil.
• Pause briefly before you start and after you finish, so the first and last words are not cut off.
• Have water nearby. A dry mouth creates clicking sounds.

#Tips for contributing Tamil speech

The Eelam Lab contribution studio at /contribute offers two ways to record in your browser.

#Reading a sentence aloud

You will see a Tamil sentence and record yourself reading it.

• Read the sentence silently once before recording, so you are comfortable with it.
• Read it the way you would naturally say it. If a word feels unfamiliar, it is fine to pause and try again.
• If you make a mistake, simply re-record. There is no penalty.

#Talking freely

You can also talk about anything you like, for up to 5 minutes per clip. This spontaneous speech is especially valuable because it captures how Tamil is really spoken.

Some ideas if you are not sure what to say:

• Describe your morning or your journey to work
• Explain how your family makes a favourite dish
• Talk about a festival such as Pongal (பொங்கல், poṅkal, the harvest festival) and how you celebrate it
• Share a childhood memory or a story an elder told you
• Explain a proverb your parents used to say

#Speak your own Tamil

Please do not try to sound "correct" or formal unless the prompt asks for it. Your dialect, your accent and your everyday vocabulary are exactly what is missing from most Tamil data. If you are from Jaffna, Batticaloa, Madurai, Kongu, Tirunelveli, Malaysia, Singapore or the diaspora, speak the way you speak at home. Our guide to Tamil dialects shows how rich this variety is.

Mixing English words into your Tamil is fine too. That is how many people talk, and a useful model needs to understand it.

#Recording elders

If you are helping a parent or grandparent record, set up the phone for them, do a test, and let them speak in their own time. Make sure they understand what the recording is for and agree to it. Our guide to recording Tamil oral history has questions and tips for these conversations.

#Common problems and quick fixes

Problem	Likely cause	Quick fix
Voice sounds distant	Phone too far away	Move to 30 to 50 cm
Popping on "p" and "b"	Speaking straight into the mic	Angle the phone slightly to the side
Echo	Hard, bare room	Move to a room with soft furnishings
Constant hum	Fan, fridge or air conditioner	Switch it off or move away
Rustling	Holding the phone	Rest it on a table
Crackly or distorted	Too close or too loud	Move back a little, speak at normal volume
Words cut off	Started speaking too soon	Pause one second before and after

#Before you submit

Every contribution to Eelam Lab requires your explicit consent. Recordings are reviewed by people before being used in training and may be licensed to third parties. Only submit your own voice, or recordings of others who have clearly agreed to contribute.

Avoid sharing sensitive personal details in free recordings, such as full addresses, phone numbers or financial information. We follow Canada's PIPEDA privacy principles, and you can request deletion by emailing privacy@eelamlab.com. See our privacy page for how deletion works.

#Frequently asked questions

#Do I need a special microphone to record a good voice sample?

No. A modern smartphone or laptop microphone is enough for contributions. Room choice and microphone placement matter far more than the device itself.

#How long should each recording be?

Read-aloud recordings are usually just one sentence. Free-talk recordings can be up to 5 minutes per clip. Several shorter clips on different topics are often more useful than one long one.

#What if there is a little background noise?

A small amount of everyday noise is fine and even reflects real conditions. Just make sure your voice is clearly louder than anything else. If constant noise competes with your voice, try a quieter time or room.

#Can I record on a laptop instead of a phone?

Yes. The studio works in your browser on both. Place the laptop at a comfortable distance, avoid typing while you speak, and be aware that laptop fans can be noisy during long sessions.

#Ready to record

You now know everything you need: a soft, quiet room, your phone at forearm's length, a quick test, and your own natural Tamil. Open the contribution studio, allow microphone access, and record your first clip. A few minutes of your voice helps build Tamil technology that understands Tamil the way you speak it.