Playback Mic - input to output

Output from mic to file or headphones with custom delay. Zero delay NOT possible

Playback Mic - Input to Output App for Android

"Playback Mic - input to output" is an Android app designed for audio monitoring and recording. It offers customizable delays for vocal training, language practice, and testing headphones, while allowing quick replay and sharing of recordings. Note that it is not suitable for zero-latency use or live singing with loudspeakers. The app supports both compressed and uncompressed audio formats, ensuring flexibility in recording. The free version includes 3 hours of recording time, after which sessions are limited to 1 minute.
Install from Google Play Store

App stats

Version: VARY (Last updated: 2023-05-24)
Creation date: 2019-06-08
Permissions
Microphone: record audio
Other:
  • view network connections
  • pair with Bluetooth devices
  • full network access
  • change your audio settings
  • prevent device from sleeping

Other platforms

Playback Rate Controller (v1.4.1)
4.56 (61) 10,000
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App summary

Designed for:
- Training vocal projection
- Practicing pronunciation at language learning
- Practicing for casting
- Testing headphones
- Recording with audio monitoring
- Recording multiple takes with quick replay of last recorded segment
- Anything else you might want to do with given feature set :)

NOT suitable for:
- Use as a singing microphone with loudspeakers
- Use as an interface with near-zero latency
because
* It is not possible to completely remove the latency on Android devices
* The microphones are typically omnidirectional and pick voices from surrounding, thus leading to loud feedback loop if using loudspeakers

Feature set:
- Output from microphone to speakers or headphones (monitoring)
- Custom delay on monitoring
- Audio recording in compressed or uncompressed format
- Quick replay of the latest recorded file
- Quick sharing of the latest recorded file

Notes:
- When monitoring, you need to make sure, the mic is not picking up the sound from the speakers (i.e. the use of headphones is recommended), otherwise the feedback loop starts producing noise!
- Minimum latency (delay) depends on the audio driver and device specifications. The app is designed to offer the lowest possible latency an app could offer, but there is inevitably going to be some latency on android devices (at least for now).

Free version allows for 3 h of total recording or monitoring time. After that the recording or monitoring session is limited to 1 minute.

In case of any problems, please contact me at [email protected] and I will try to resolve any issue.

Internet permission is needed for the purpose of handling crash reports and improving app performance for which we use Google Cloud services. Voice recordings are never collected.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Google Play Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Works well with USB microphones and Bluetooth earbuds when properly configured.
  • Minimizes lag and provides features suitable for amplifying sound in noisy environments.
  • Good functionality for immediate audio playback and recording.
  • Simple and user-friendly interface for specific use cases like mic checking.
  • Useful for various applications such as voice training and hearing aids.
Cons
  • Lack of clear notification for app status (whether it's recording or not).
  • Issues with Bluetooth headphone functionality, forcing audio through phone speakers.
  • Delays with playback can be problematic for some users, especially musicians.
  • Limited use of different microphones and unclear trial limitations.
  • App may stop functioning after some time with poor coding experiences reported.
Most mentioned
  • Delay in audio playback.
  • Bluetooth compatibility issues.
  • Lack of clear notifications for app status.
  • Good audio quality for various applications.
  • User interface simplicity.
User reviews
Works with a bit of fiddling on the settings. 2 main issues, though. I used this app because I wanted to use my phone as a microphone for a computer. It seems like it sometimes forgets whether to output through speaker or audio jack. The other issue I'm not sure what to think. There is no icon for it. Seems it can be left recording with no notices even after the window is closed. Probably a good feature for spying on people without their knowing, but I don't think that should be a feature.
by Unagi604 (Unagi604), 2024-11-16

WORKS WITH USB MIC AND BLUETOOTH EARBUDS. In settings, change your preferred device to the USB mic. Change Mic mode to automatic. Only settings box checked in stereo. Finally, in your phones bluetooth settings, uncheck "calls" for your earbuds. Like the app description says, there will be a delay. This is the only app that allows me to monitor my Audio-Technica mic.
by Chad R, 2024-11-11

i downloaded this app to see if I can use it as a microphone to sing, but it cuts off words so it's not the greatest. I need a substitute until I can get an actual mic 😔
by xXSky EmilyXx, 2024-11-05
View all user reviews

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