doc:appunti:linux:audio:audio_recording_tmb113_e
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
doc:appunti:linux:audio:audio_recording_tmb113_e [2020/12/28 08:00] – [Setting the recording volume with PulseAudio] niccolo | doc:appunti:linux:audio:audio_recording_tmb113_e [2020/12/28 16:09] (current) – [Recording with PulseAudio parecord] niccolo | ||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== Audio recording with the Acer Travelmate | + | ====== Audio recording with the Acer TravelMate |
- | How to record audio using a **wireless microphone** connected to the audio jack of an **Acer | + | {{acer-travelmate-wireless-microphone.jpg? |
+ | How to record audio using a **wireless microphone** connected to the audio jack of an **Acer | ||
+ | |||
+ | The microphone is a **[[wp> | ||
+ | |||
+ | ===== Electrical connection ===== | ||
+ | |||
+ | I used an headset/ | ||
+ | |||
+ | ^ 1/4" TS female jack ^ Signal | ||
+ | | | Not connected | ||
+ | | | Not connected | ||
+ | | **Sleeve** | ||
+ | | **Tip** | ||
===== Problem detecting the external microphone ===== | ===== Problem detecting the external microphone ===== | ||
Line 91: | Line 104: | ||
The recording volume should be a vaule between the **base volume** and **65536** (corresponding to 100%, or 0.00 dB). Every different hardware should be tested to find the best settings to get a clear and loud sound, but to avoid clipping (out of scale samples). | The recording volume should be a vaule between the **base volume** and **65536** (corresponding to 100%, or 0.00 dB). Every different hardware should be tested to find the best settings to get a clear and loud sound, but to avoid clipping (out of scale samples). | ||
+ | < | ||
+ | pacmd list-sources | ||
+ | 2 source(s) available. | ||
+ | index: 0 | ||
+ | name: < | ||
+ | ... | ||
+ | properties: | ||
+ | device.description = " | ||
+ | device.class = " | ||
+ | ... | ||
+ | * index: 1 | ||
+ | name: < | ||
+ | volume: front-left: 26092 / 40% / -24.00 dB, | ||
+ | base volume: 5206 / 8% / -66.00 dB | ||
+ | ... | ||
+ | properties: | ||
+ | device.class = " | ||
+ | ... | ||
+ | ports: | ||
+ | analog-input-internal-mic: | ||
+ | ... | ||
+ | analog-input-mic: | ||
+ | active port: < | ||
+ | </ | ||
+ | |||
+ | **Beware** that with the audio card of the TMB113-E, the port **analog-input-mic** refers to the external microphone when that one is connected (or forcibly connected by hdajackretask), | ||
+ | |||
+ | Once you understand the output of **pacmd list-sources**, | ||
<code bash> | <code bash> | ||
+ | #!/bin/sh | ||
SOURCE=' | SOURCE=' | ||
PORT=' | PORT=' | ||
VOLUME=16463 | VOLUME=16463 | ||
- | |||
pacmd set-default-source " | pacmd set-default-source " | ||
pacmd set-source-port " | pacmd set-source-port " | ||
Line 103: | Line 144: | ||
parecord --verbose --device=" | parecord --verbose --device=" | ||
</ | </ | ||
+ | |||
+ | The result is a **44100 Hz, 16 bit little-endian, | ||
===== Microphone plug/unplug events ===== | ===== Microphone plug/unplug events ===== |
doc/appunti/linux/audio/audio_recording_tmb113_e.txt · Last modified: 2020/12/28 16:09 by niccolo