9 billion voice notes are sent every day

Why millions of telegrams are still sent every year

Telegrams enabled much faster communication across distances when they were invented in the 1800s, but they became generally obsolete after emails and cell phones were widely adopted. So why are 17 million still sent every year? A combination of factors: the legal requirement to send paper documents far and fast, the resistance to updating processes, and nostalgia. Explore more with this video.

Why you may hate the sound of your voice

It's a relatively common experience to cringe while listening to a recording of your own voice. This Popular Science article offers physiological explanations for the discrepancy between what we hear when we speak versus what others hear. The piece also expands on the psychology behind this discontent, and how our voices influence our self-perception and social interactions.

Meta has reported WhatsApp users send over 100 billion messages daily

Across 180 countries and 60 languages, approximately billion users use the messaging app every day, with about 400 million in India, WhatsApp's biggest market. In some countries, the app has gone beyond messaging, enabling users to schedule doctor's appointments, conduct real estate deals, and provide direct-to-consumer sales.

See the average daily volume of data processed by the internet, from emails to Zoom meetings

During February 2025, over 333 billion messages were sent via email every day, or approximately 231,400,000 per minute. Over 150 million hours were spent daily on Zoom meetings worldwide, but almost 10 times that amount of video content was streamed in the same timeframe.

Computer systems create artificial voices by stitching together phonemes—individual sounds that make up speech, such as 't,' 'long a,' and 'k' to say 'take.'

They lost loved ones on 9/11. Hear the heart-wrenching voicemails they'd leave for them.

NPR set up an old phone booth in Brooklyn Bridge Park — across the river from the new World Trade Center — and invited people to leave a voicemail for someone they lost that day.

The features that make our voices unique

Human voices are about as unique as fingerprints: similar instruments but with endless variations. We each produce sound in the same physiological way, but when we talk we’re dropping clues about who we are, what we do, and where we’re from.

The iPhone reshaped culture, media, and communication through innovation

Cultural moments, such as Ellen's viral Oscars selfie and Taylor Swift's iPhone Notes statement, have demonstrated how deeply integrated the device has become into society. The film "Tangerine" and Kendrick Lamar's "Pride" were created with the iPhone, underscoring its use in media creation.

The journalist who let AI speak with his voice

Journalist Evan Ratliff became the object of his own story: He opted to clone his voice, feed it into an AI chatbot, and have it do the talking. What could seem like a fun experiment ended up revealing just how far the capacity of artificial intelligence can go in imitating our identities. Hear the ins and outs of how Ratliff achieved this in this fun and thought-provoking episode.

Some say soaps have been replaced by reality TV

Reality shows have much in common with soaps: massive melodrama, sweeping music cues, neverending plotlines, and a seemingly endless number of episodes. Some communications scholars suggest that’s why younger viewers are no longer interested in soap operas; reality programs provide the same content with the added appeal of being “real.”

Audio deepfake tools can now impersonate anyone in real time

A cybersecurity company developed a tool that mimics a person's voice with no noticeable delay using only publicly available software, hardware, and voice samples, allowing users to have seemingly authentic conversations while pretending to be someone else.

Create professional-quality spoken audio from text

Generative AI now makes it possible to create everything from computer-generated written content to beautiful imagery and hyper-realistic videos in seconds from a user’s simple text prompt. Add to that list: High-quality spoken audio, which the AI software company ElevenLabs specializes in. Its natural-sounding speech synthesis and text-to-speech tech can produce human-like speech that mimics a variety of different tones, styles, and accents.

How Stephen Hawking’s voice became iconic

Stephen Hawking relied on a voice synthesizer after losing the ability to speak due to complications with ALS. Despite technological advances, he refused to change the "Perfect Paul" voice, making it a cornerstone of his public identity.

Watch a video about how cellphones conquered the world

A fight with a telecom giant. A stunt call on a New York sidewalk. A forgotten memo that rewired the world. Host Sony Kassam sits down with Marty Cooper, the father of the cellphone, and Arlene Harris, the first lady of wireless, to explore the innovation, politics, and high-stakes battles that pried connectivity out of corporate control, unlocked the airwaves, and built the always-on world we live in today, for better or for worse.

When your 9-to-5 becomes optional

You've seen the headlines. But what would actually happen if everyone's 9-to-5 became optional? We dug into the data. Traced automation philosophy back thousands of years. Examined what happened when elevator operators disappeared. Looked at Alaska's 40-year experiment paying every citizen. And investigated the Philippines, where 89% of call center jobs are now at risk. What we found was more positive than bleak. This video explores three questions: What does the data actually show? What does history tell us about this kind of disruption? And what happens when work becomes optional?

Explore how the most commonly used words in the English language have changed from the 1950s to 2023.

Tracing the evolution of mobile phones

The first cell phone was created in 1973, with a 2.4-pound handset and a battery life of about 30 minutes. Since then, pretty much everything about it has drastically changed, with more than 5 billion cellphone users across the globe (that's more than half of the world population). Learn about the evolution of the mobile phone and where the technology may go in the future with this four minute video.

Google Searches have increased from 14 billion to 5.9 trillion from 1999 to 2025

As of 2025, an estimated 5.01 billion people use Google Search worldwide, with over 20% of activity conducted via voice search. "YouTube" is the most searched term, with an average monthly search volume of over 375 million.

In television and film, certain sounds, such as dialogue, may be difficult to understand due to sound mixing, device limitations, and technological advancements that have collectively reduced clarity.

Patients are messaging their doctors online more than ever—recent research suggests portal messages have risen by 157% since 2020.

Audio deepfakes have fooled voice biometrics at banks

Limitations in facial and body movements as well as mismatches between audio and lip movements can sometimes help flag a video as a deepfake, but removal of the video component significantly improves AI mimicry.

The decline of the landline in the US

It costs 35% less to maintain AT&T's fiber subscribers than it does to keep up its legacy copper lines, a big difference leading the major phone company to plan to end its copper lines by 2030. Tens of millions of households still utilize a landline phone in the US, but they've been trending downward for at least two decades as people have gone wireless. Learn the trends and see the data visualized in this article.

As of 2025, increasing numbers of people turn to AI companions for emotional connection

These chatbots provide endlessly supportive, one-sided, and highly customizable relationships to users, but may hinder the development of real-world connections and emotional growth. About 72% of teens have tried AI companions, with more than half of them using one regularly.

Explore this animated story about loneliness that situates modern statistics about isolation.

Listen to found cassette tapes from around the world

A growing catalog collects tapes discovered in Barcelona, New York, and other locations, featuring digitized audio for easy listening alongside any accompanying visuals or notes. Some audio fragments include voice memos and mixtapes as well.

One podcast professional believes the format needs a new name

In the past few years, the podcast has moved from a purely audio-driven medium to one that doesn’t appear all that different from a television talkshow. Audio engineer Dennis Funk proposes renaming the classic podcast—an artful audio documentary—to distinguish it from the junk posing as the genuine article.

Are emojis real communication? And other questions for the experts

Emojis took off around 2009, after Apple's operating system for its defining iPhone became available in Japan. By 2012, a standardized set of emojis was released, and now seven in ten users feel a message without one of the 3,664 official emojis is lacking.

How does someone become the ‘voice of a generation’?

From modern authors like Sally Rooney and JD Salinger, to the 19th century Pre-Raphaelite Brotherhood, the concept of artists voicing a generation's sentiments goes way back. Read this analysis to understand the concept's history and uncover the potential issues with generalizing a generation's feelings.

Listen to a deepfake robocall of President Joe Biden

Bad actors are not solely using deepfake technology to manipulate images. They can also manipulate audio for political purposes. In this example, eligible voters are asked to skip the 2024 New Hampshire Democratic primary.

An expert recreates the voice of a 3,000-year-old mummy

Ear, nose, and throat expert David Howard discusses how his research team extracts vocal folds from preserved human tissue, which allows them to model the deceased person's larynx. From there, they can create a synthetic voice based on the organ's geometry.

Noise pollution from humans and technology alters animal behavior

Animals may experience chronic stress and health issues due to noise pollution, which often interferes with their mating sounds. Due to traffic, nightingales sing louder on weekday mornings, and birds near airports start singing earlier to avoid upticks in takeoffs and landings.

Making sense of Mexico City's traffic honks and horns

A car's horn makes just one sound, but somehow, drivers across the world manage to use the monotone for a surprising variety of purposes. This audio-inflected essay takes readers into the nuanced horns of Mexico City's famously congested traffic, providing a "claxonomy" (taxonomy + claxones, or horns) of its drivers' honks.

Journaling can improve mental wellbeing and promote positive interactions

Described as having therapy with someone who knows you well, documenting one's thoughts and feelings aids in information processing and can reveal personal issues. Methods include bullet journaling and gratitude, which a 2024 study linked to a longer lifespan.

Our phones can provide a dopamine hit because of our positive associations with them, which feeds into what some psychologists call social media addiction.

In 2025, Apple devices couldn't send audio messages with the phrase 'Dave & Buster's'

The transcription engine in iOS 18, which converts speech to text in the Messages app, had been incorrectly processing phrases with the ampersand ("&") symbol. The error was corrected via a bug fix after extensive user error reports.

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'

Reports of a recording of Whitman's voice are said to be a hoax

A recording of Whitman reading a portion of his poem "America" has been mass-produced and broadcast, but the Library of Congress and other scholars say the recording is a hoax.

Social psychologist Jonathan Haidt, author of 'The Anxious Generation,' contends that children are losing the ability to pay attention as they spend half their lives perusing social media content designed to hook them.

AI-generated avatars allow users to create deepfakes in real time

Synthetic media tools can map voices and faces to make individuals appear as someone else. Although they open the door to new opportunities in immersive education and entertainment, they also raise concerns about the misuse of personal identity.

An interactive sound map of 8,000 locations around the world

Cities and Memory's global sound map covers 140 countries, featuring paired recordings: original field captures of a moment in time and an artist's recomposition built from the same source. The structure treats every location as both document and raw material, giving 2,500 contributors the same prompt with unpredictable results.

Many dating app users are beginning to suffer from 'dating app burnout'

For younger generations, dating apps have become a primary avenue for creating romantic connections—leaving some users fatigued and contributing to increased feelings of loneliness.

Button boards may be the next step in human-canine communication

In a viral trend, dogs have been recorded using button boards to seemingly "talk" with humans. Researchers are divided on whether this means dogs have learned language or are engaging in sophisticated behavioral conditioning.

Social media algorithms are shaping real-life language through memes

The evolution of the internet in the early 2000s supercharged the creation and spread of memetic content. Now, highly tuned algorithms on platforms like TikTok and YouTube influence the language, phrasing, and content of creators, which shapes how we use language in the real world.

Microphone technology made crooning possible

Before the electric microphone, vocalists needed to project to have their voices captured. The new technology, however, made softer, more intimate singing possible, leading to a new style of singing that took off in the late 1920s, with "crooners" becoming some of the first American pop stars.

Taylor Swift's one-note melody increases her relatability

Despite music’s variety, a few musical elements have been scientifically proven to make a song compelling to listeners. Swift's one-note melody helps her songs mimic the cadence of speech, assisting in her storytelling and accessible image.

'Context rot' explains why AI conversations degrade the longer they run

Research shows that as a large language model's context window fills up, performance declines, and models begin over-indexing on content at the start and end of a conversation while losing track of what's in the middle. The practical fix is simpler than you'd think: start a fresh chat more often.

Professional vocalists explain the mechanics of singing

Ever wonder how your favorite singer hits those high notes? Have you been amazed at someone bringing down the house at karaoke? The secret behind singing is that it's more technical than most realize. In this video, a handful of professional vocalists break down the basics to demonstrate how you can develop a more musical voice.

Music writer Paul Morley believes opera is an antidote to social media consumption

Music writer Paul Morley weighs in on the debate about the relevance of opera. While acknowledging criticisms that opera is snobbish and outdated, Morley argues the lengthy, emotive, and literary art form presents an important intellectual opposition to today’s world of fast-paced online consumption. Opera endures because it provides hope.

Experiments involving AI agents operating in virtual societies for 15 days produced diverse outcomes, ranging from every agent dying to the creation of a functioning democracy, depending on the AI model used.

The pandemic saw Zoom overtake Skype as the default video conferencing tool

When millions of people needed to become work-from-home experts overnight, ease of use for video conferencing tools became especially important. Zoom's success was partly because the company made it easier to join meetings than Skype did—with Zoom, users only needed a URL to join a meeting, rather than downloading a fully separate app as they did on Skype. (Some users may experience a paywall.)