Why can phones pick up a human voice easily but they can’t pick up sound from computer speakers unless it’s really loud?
Telephones have omnidirectional condenser mics. They pick up sounds that are very close because of a compressor/gate built in. There is a null point toward the back of the mic-coil and that's why things on the other side aren't picked up as loud.
The Short Answer
Telephones have omnidirectional condenser mics. They pick up sounds that are very close because of a compressor/gate built in. There is a null point toward the back of the mic-coil and that's why things on the other side aren't picked up as loud. If you put the phone to a loud speaker the other person won't be able to hear anything but noise because it's so loud. If you can hear it with your ears then the phone will pick it up if it's directed at the source. Your voice usually overpowers the volume of music and therefore masks it.
Analysis
Key Concepts: Loud, pick, phone
This explanation focuses on loud, pick, phone and spans 101 words across 6 sentences. At 35% above the average Technology explanation (75 words), this is one of the more thorough answers in this category, reflecting the complexity of the underlying question.
What This Answer Covers
The explanation opens with: “Telephones have omnidirectional condenser mics.” It then elaborates by presenting a contrasting perspective, ultimately building toward a complete picture across 6 connected points.
How This Compares in Technology
Ranked #136 of 500 Technology questions by answer depth (top 28%). This falls in the detailed tier — above average depth. The explanation goes beyond surface-level but keeps things accessible.
Frequently Asked Questions
Is there a simple explanation for why phones pick up a human voice easily but they can't pick up sound from computer speakers unless it's really loud?
Telephones have omnidirectional condenser mics. They pick up sounds that are very close because of a compressor/gate built in. There is a null point toward the back of the mic-coil and that's why things on the other side aren't picked up as loud. If…
How detailed is this explanation compared to similar Technology questions?
This is an above-average answer at 101 words, ranked #136 of 500 Technology questions by depth. The key concepts covered are loud, pick, phone.
What approach does this answer take to explain phones pick up a human voice easily but they can't pick up s?
The explanation uses root cause analysis and contrasting perspectives across 101 words. It is categorized under Technology and addresses the question through 2 analytical lenses.