Playback Mic - input to output

Time Tools

In-app purchases

About this app

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 [e-mail] 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.

Ratings and reviews

I wanted to hear what my microphone hears (rather than hear myself through my jawbone) to improve my awful singing. This is exactly what I was looking for. The 150 millisecond minimum delay is short enough, and the ability to adjust the delay length is useful. My only complaint is that I can't use the microphone with other apps on the same phone at the same time (which is a limitation of my phone, not this app).

Works as advertised, but unacceptable for Bluetooth transmitting in real time. Lowest setting has too much latency. Although, this is not the apps fault. The conversion from analog to digital processing to Bluetooth and to amplification is the culprit, I suspect. If the latency playback is a non-issue then 4 stars. It could use a signal bar graph for input volume.

I use this app as a hearing aid microphone, and it works perfectly with my Bluetooth headset (Aftershokz brand). I would appreciate it if the app mic could automatically turn off the microphone whenever other sound-enabled apps, such as YouTube, are active. Overall, it's simple to use and has a clean, user-friendly interface.

What’s new

Stability improvements.
Update delay calculation.