Loading...
| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | reaktorplayer |
| 许可： | CC-BY-NC 非商业署名许可协议 |
| 描述： | Wiki: "Dualtone multifrequency signaling (DTMF) is used for telecommunication signaling over analog telephone lines in the voicefrequency band between telephone handsets and other communications devices and the switching center. The version of DTMF that is used in pushbutton telephones for tone dialing is known as TouchTone, first used by ATT in commerce as a registered trademark, and is standardized by ITUT Recommendation Q.23. It is also known in the UK as MF4." |
| 标签： | communications dialtones phone telephone tones |
| 音频格式 | wav |
| 声音时长 | 00:04 |
| 文件大小 | 827.1 KB |
| 比特率 | 1411 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |