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# Recording interviews
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## Mobile apps
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Android has a useful, simple audio recording application built-in since Android 7.
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## Audio recorder
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* an audio recorder for little money (£€30-40).
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* a Galaxy Samsung SIII, S4, S5 with the default recorder app from lineageos
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* [TP8 Telephone Pick-Up](https://www.olympus-europa.com/site/en/a/audio_accessories/accessories_professional_dictation/microphones/tp8_telephone_pickup_pro/index.html) to record interviews done via mobile (software solutions are flaky or proprietary)
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## Audio recorder on GNU/Linux
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To record a videoconference https://obsproject.com/
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# Transcribing interviews
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- [OTranscribe](http://otranscribe.com/)
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- adb pull /sdcard/Music/SoundRecords /tmp
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- ffmpeg -i SoundRecord-2018-03-29-12-36-18.wav -vn -ar 44100 -ac 2 -ab 192k -f mp3 interview.mp3
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- chromium http://otranscribe.com/
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If the volume of the recording is too low, [it can be amplified](https://trac.ffmpeg.org/wiki/AudioVolume) with:
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ffmpeg -i interview.mp3 -filter:a "volume=5.0" amplified.mp3
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