--- title: Microphone slug: microphone-4f15c url: /detay/microphone-4f15c type: article language: English entity: primary: Microphone type: article disambiguation: Microphones: Convert sound to electrical signals. Types include dynamic, condenser, & ribbon. Learn about their history & technology. categories: - name: Media And Communication slug: medya-ve-iletisim url: /kategori/medya-ve-iletisim - name: Electricity and Electronics slug: elektrik-ve-elektronik url: /kategori/elektrik-ve-elektronik - name: Consumer Electronics slug: tuketici-elektronigi url: /kategori/tuketici-elektronigi tags: - Recording - Electronic Device - Polar Patterns - Ribbon Microphone - Dynamic Microphone - Condenser Microphone - Microphone - Technology - music - Sound author: Ömer Faruk Bilcan created_at: 2025-07-11T20:04:17.911677+03:00 updated_at: 2025-07-12T09:23:58.813545+03:00 image: https://cdn.t3pedia.org/media/uploads/2025/07/11/VLp07b944hWqSwUhlUvNRhzYZwV499Rw.jpg --- # Microphone ## KURE Information Cards ![pexels-jaasiel-mora-750006729-18653022.jpg](https://cdn.t3pedia.org/media/uploads/2025/07/11/aks3bOuNVR3xhoJuZK10YITh9mULDdyQ.jpg) *Microphone* | Field | Value | |-------|-------| | Definition(s) | A Device That Converts Sound Waveforms Into Electrical Signals | | Connectivity | Wired (XLR, 1/4" Jack) And Wireless Options | | Operating Principle | Sound Waves Vibrate The Diaphragm; This Movement Is Converted Into An Electrical Signal | | Applications | Sound Recording, Broadcasting, Speech, Musical Performance | | Type(s) | Ribbon Etc.,Condenser,Dynamic | ## Article Content A microphone is a device that converts [sound waves](/en/detay/the-silence-of-space-do-sound-waves-travel-through/llms.txt)—small variations in air pressure—into [electrical signals](/en/detay/electric-circuits-f76bd/llms.txt). These signals can then be amplified, recorded, or transmitted. Microphones are fundamental components of many [audio communication](/en/detay/communication-systems-7337d/llms.txt) and production technologies, including telephony, broadcasting, music recording, speech recognition, and surveillance. ![Image](https://cdn.kureansiklopedi.com/media/uploads/2025/07/11/3WAaek9Oz3H2JvVX0Hj5MAEkzOZmxpha.jpg) *A Dynamic Microphone (Pexels)* ### **History of the Microphone** Although one of the earliest microphone designs was developed by Johann Philipp Reis in the 1860s, his device was unable to clearly transmit speech. - In the 1870s, Elisha Gray and Alexander Graham Bell designed microphones based on the liquid conductor principle; Bell achieved the first intelligible voice transmission in 1876 and secured the patent rights. - In 1878, David Edward Hughes developed the first carbon microphone using carbon granules. Thomas Edison further improved this technology, inventing the durable carbon microphone used in telephones. - Advancements in radio broadcasting and recording technologies during the 1920s led to improvements in carbon microphones; electromagnetic and condenser microphones also became widespread during this period. - In the 1930s, ribbon microphones emerged, and with the use of strong magnets, microphones became smaller and more durable. New technical solutions were developed in condenser microphones to prevent interference caused by humidity. Today, research continues on new technologies such as microphones compatible with high sampling rates, ambisonic systems, and optical microphones. In the future, optomechanical and laser-based microphone technologies are expected to play a significant role in the microphone industry. ### **Types of Microphones** Microphones are classified according to their method of converting acoustic energy into electrical signals. The main types include dynamic, condenser, and ribbon microphones, along with several specialized varieties. #### **Dynamic Microphones** Dynamic microphones operate based on electromagnetic induction. A coil attached to the diaphragm moves within a [magnetic field](/en/detay/magnetic-field-260e6/llms.txt), generating an electrical current. Due to their low sensitivity and robust construction, they are widely used for high sound pressure level (SPL) sources such as live vocals, drums, and guitar amplifiers. Dynamic microphones do not require an external power supply. #### **Condenser Microphones** [Condenser microphones](/en/detay/microphone-02da3/llms.txt) (also known as capacitor microphones) detect changes in [capacitance](/en/detay/capacitance/llms.txt) between a diaphragm and a fixed backplate, converting these changes into electrical signals. Their high sensitivity and wide frequency response make them preferred in studio environments for vocals, acoustic instruments, and ambient sound recording. They are usually powered by 48V phantom power or an internal battery. They have two subtypes: - **Large diaphragm condenser microphones** are popular for vocals and instruments, emphasizing bass or midrange frequencies. - **Small diaphragm condenser microphones** are suitable for sources with fast transients and high-frequency detail (e.g., cymbals, strings). #### **Ribbon Microphones** Ribbon microphones use a thin metal ribbon suspended within a magnetic field. Sound waves move this ribbon, changing the current passing through it. These microphones are bidirectional (figure-eight polar pattern) and provide a smooth, natural tone. Due to their delicate construction, they require protection from physical damage, and some older models are sensitive to phantom power. #### **Other Types** - **Electret Microphones**: A subtype of condenser microphones using permanently charged materials; commonly used in consumer electronics like mobile phones and computers. - **USB Microphones**: Typically condenser or dynamic microphones with built-in digital converters and audio interfaces, allowing direct connection to computers. - **Tube Microphones**: Condenser microphones employing vacuum tubes for signal amplification; they add warmth and character to the sound. - **Crystal Microphones**: Use piezoelectric materials; not intended for high-quality audio but for specific applications. - **MEMS Microphones**: Microelectromechanical systems developed for compact digital audio recording in mobile devices and computers. ### **Advantages and Disadvantages** Choosing a microphone type requires balancing sensitivity, durability, frequency response, and suitability for the acoustic environment. | Type | Advantages | Disadvantages | | Dynamic | Durable; handles high SPL; no power required | Lower sensitivity; limited frequency response | | Condenser | High sensitivity and detail; broad frequency response | Requires power; more sensitive to handling noise and moisture | | Ribbon | Natural, warm sound; bi-directional pickup | Fragile; some models incompatible with phantom power | | Electret | Compact, inexpensive, suitable for general-purpose use | Lower fidelity, reduced longevity compared to pro-grade mics | | USB | Plug-and-play; convenient for streaming and home recording | Limited upgradeability; dependent on internal preamp quality | | MEMS | Ultra-compact; integrated digital conversion | Not designed for professional audio capture | ### **Polar Patterns** Microphones have different polar patterns that define their sensitivity to sound arriving from various directions. These patterns are critical for microphone placement and isolating unwanted sound sources. - **Cardioid:** The most common directional pattern. It picks up sound primarily from the front while largely rejecting sounds from the sides and rear. Suitable for close-miking vocals and instruments. - **Supercardioid and Hypercardioid:** Narrower versions of the cardioid pattern; they provide tighter sound pickup from the front but allow slightly more sound from the sides and rear. Require precise positioning. - **Omnidirectional:** Picks up sound equally from all directions. Preferred for natural and realistic recordings; useful when the speaker moves around (e.g., lavalier microphones). - **Bidirectional (Figure-Eight):** Picks up sound equally from the front and rear while rejecting sounds from the sides. Used in stereo recording techniques such as Blumlein and mid/side. - **Shotgun:** Provides a very narrow and focused pickup from the front, largely rejecting side and rear sounds. Used in film, broadcasting, and outdoor recording to capture sound from a distance. ![Image](https://cdn.kureansiklopedi.com/media/uploads/2025/07/11/HvXqkMNh7DccbbsfRzufctTjwMART7e5.jpg) *Polar Design Example 1 (Flickr) ve Polar Design Example 2 (Flickr)* ## Academic Sources and References 1. Boyer, Mark, and Talon Homer. “How Microphones Capture Sound.” HowStuffWorks. Accessed July 11, 2025. https://electronics.howstuffworks.com/gadgets/audio-music/question309.htm. 2. Eargle, John. The Microphone Book: From Mono to Stereo to Surround — A Guide to Microphone Design and Application. 3rd ed. New York: Focal Press, 2012. Accessed July 11, 2025. 3. Parmar, Robin. Common Microphone Polar Patterns 1. Uploaded March 8, 2013. Accessed July 11, 2025. https://www.flickr.com/photos/rparmar/8539439589/in/album-72157632914359702. 4. Parmar, Robin. Common Microphone Polar Patterns 2. Uploaded March 8, 2013. Accessed July 11, 2025. https://www.flickr.com/photos/rparmar/8539439523/in/album-72157632914359702. 5. RØDE Microphones. “What Are a Microphone’s Polar Patterns?” RØDE. Accessed July 11, 2025. https://rode.com/en/about/news-info/what-are-a-microphones-polar-patterns. 6. Stempel, Philip. “Types of Microphones.” LEWITT Blog. Published November 26, 2024. Accessed July 11, 2025. https://www.lewitt-audio.com/blog/types-of-microphones. 7. Titze, Ingo R., and William S. Winholtz. “Effect of Microphone Type and Placement on Voice Perturbation Measurements.” Journal of Voice 7, no. 1 (1993): 80–86. Accessed July 11, 2025. https://www.jvoice.org/article/S0892-1997(01)00035-2/fulltext. 8. Tobias, Thomas K. “Dynamic vs. Condenser Microphones: What’s Better?” LEWITT Blog, September 4, 2020. Accessed July 11, 2025. https://www.lewitt-audio.com/blog/dynamic-vs-condenser-microphones-what-better. ## Related Articles - [Electric Vehicle](//detay/electric-vehicle/llms.txt) - [Electrical Engineering](//detay/electrical-engineering/llms.txt)