ASR is one of the best sound and voice recording app on the Play Store. Record meetings, notes, lessons, songs. It is free and without any limitations on the recording time. 

Here are some of the features of ASR:

- Lots of recording formats such as MP3, WAV, OGG, FLAC, M4A, AMR
- Cloud upload integration (Pro) support for Google Drive, Dropbox, OneDrive, Box, Yandex Disk, FTP, WebDav, Auto email 
- Grouping recordings by tag/label
- Adding notes while listening or recording
- Audio converter to cut and save parts from recording
- Playback speed controller
- Sample and bit rate options for better control of recording quality
- Dedicated pause recording button
- Dedicated discard recording button
- Customizable recording folder
- Skip silence mode
- Gain to increase or decrease volume of recording
- Delete and share multiple recordings
- Record and play recordings while app is in the background
- Listen while recording with headphones
- Record from Bluetooth headset microphone
- Auto start recording
- Recording widget and shortcut for quick and easy access
- Multiple languages