Impulse Response
ASO Keyword Dashboard
Tracking 139 keywords for Impulse Response in Google Play
Impulse Response tracks 139 keywords (no keywords rank yet; 139 need traction). Key metrics: opportunity 70.9, difficulty 45.4.
Turns an Android into a powerful tool for audio Impulse Response measurements
Tracked keywords
139
0 ranked • 139 not ranking yet
Top 10 coverage
—
Best rank — • Latest leader —
Avg opportunity
70.9
Top keyword: length
Avg difficulty
45.4
Lower scores indicate easier wins
Opportunity leaders
- 61.2
length
Opportunity: 74.0 • Difficulty: 38.9 • Rank —
Competitors: 362
- 62.6
bit
Opportunity: 74.0 • Difficulty: 43.4 • Rank —
Competitors: 749
- 61.8
speaker
Opportunity: 74.0 • Difficulty: 39.0 • Rank —
Competitors: 306
- 65.5
third
Opportunity: 74.0 • Difficulty: 53.4 • Rank —
Competitors: 828
- 60.4
meter
Opportunity: 74.0 • Difficulty: 38.0 • Rank —
Competitors: 286
Unranked opportunities
length
Opportunity: 74.0 • Difficulty: 38.9 • Competitors: 362
bit
Opportunity: 74.0 • Difficulty: 43.4 • Competitors: 749
speaker
Opportunity: 74.0 • Difficulty: 39.0 • Competitors: 306
third
Opportunity: 74.0 • Difficulty: 53.4 • Competitors: 828
meter
Opportunity: 74.0 • Difficulty: 38.0 • Competitors: 286
High competition keywords
time
Total apps: 390,164 • Major competitors: 17,979
Latest rank: — • Difficulty: 57.8
simple
Total apps: 251,116 • Major competitors: 12,133
Latest rank: — • Difficulty: 55.1
using
Total apps: 223,871 • Major competitors: 12,270
Latest rank: — • Difficulty: 57.0
easily
Total apps: 218,054 • Major competitors: 9,352
Latest rank: — • Difficulty: 56.5
data
Total apps: 178,035 • Major competitors: 7,100
Latest rank: — • Difficulty: 56.6
All tracked keywords
Includes opportunity, difficulty, rankings and competitor benchmarks
| Major Competitors | |||||||
|---|---|---|---|---|---|---|---|
| offline | 68 | 100 | 54 | 80 109,522 competing apps Median installs: 4,348 Avg rating: 2.5 | — | — | 6,971 major competitor apps |
| card | 69 | 100 | 50 | 77 68,751 competing apps Median installs: 4,483 Avg rating: 2.7 | — | — | 4,946 major competitor apps |
| level | 68 | 100 | 54 | 80 105,310 competing apps Median installs: 2,508 Avg rating: 2.5 | — | — | 6,912 major competitor apps |
| order | 67 | 100 | 52 | 82 140,408 competing apps Median installs: 554 Avg rating: 2.3 | — | — | 4,302 major competitor apps |
| via | 68 | 100 | 53 | 81 117,049 competing apps Median installs: 1,767 Avg rating: 2.4 | — | — | 4,629 major competitor apps |
| better | 69 | 100 | 52 | 78 82,985 competing apps Median installs: 2,079 Avg rating: 2.5 | — | — | 4,431 major competitor apps |
| step | 69 | 100 | 51 | 78 82,235 competing apps Median installs: 1,396 Avg rating: 2.4 | — | — | 4,078 major competitor apps |
| external | 73 | 100 | 47 | 67 16,522 competing apps Median installs: 1,495 Avg rating: 2.6 | — | — | 919 major competitor apps |
| party | 72 | 100 | 53 | 70 24,687 competing apps Median installs: 5,842 Avg rating: 2.7 | — | — | 2,295 major competitor apps |
| audio | 69 | 100 | 52 | 77 66,370 competing apps Median installs: 4,178 Avg rating: 2.6 | — | — | 3,515 major competitor apps |
| interest | 72 | 100 | 50 | 71 27,294 competing apps Median installs: 2,477 Avg rating: 2.3 | — | — | 1,570 major competitor apps |
| used | 68 | 100 | 55 | 81 116,981 competing apps Median installs: 3,110 Avg rating: 2.4 | — | — | 5,188 major competitor apps |
| file | 72 | 100 | 57 | 71 28,648 competing apps Median installs: 6,190 Avg rating: 2.6 | — | — | 2,412 major competitor apps |
| welcome | 68 | 100 | 51 | 81 124,834 competing apps Median installs: 797 Avg rating: 2.4 | — | — | 5,470 major competitor apps |
| using | 66 | 100 | 57 | 85 223,871 competing apps Median installs: 2,829 Avg rating: 2.4 | — | — | 12,270 major competitor apps |
| time | 64 | 100 | 58 | 89 390,164 competing apps Median installs: 1,395 Avg rating: 2.4 | — | — | 17,979 major competitor apps |
| exciting | 68 | 100 | 52 | 79 88,195 competing apps Median installs: 4,040 Avg rating: 2.6 | — | — | 7,694 major competitor apps |
| function | 71 | 100 | 47 | 73 36,960 competing apps Median installs: 4,247 Avg rating: 2.4 | — | — | 1,981 major competitor apps |
| test | 68 | 100 | 51 | 79 95,480 competing apps Median installs: 2,127 Avg rating: 2.5 | — | — | 5,274 major competitor apps |
| around | 68 | 100 | 57 | 79 89,233 competing apps Median installs: 3,460 Avg rating: 2.6 | — | — | 6,339 major competitor apps |
| series | 72 | 100 | 48 | 70 26,177 competing apps Median installs: 6,137 Avg rating: 2.6 | — | — | 1,944 major competitor apps |
| power | 69 | 100 | 53 | 77 66,547 competing apps Median installs: 2,263 Avg rating: 2.5 | — | — | 4,103 major competitor apps |
| text | 69 | 100 | 57 | 78 76,583 competing apps Median installs: 4,625 Avg rating: 2.6 | — | — | 4,636 major competitor apps |
| realtime | 72 | 100 | 35 | 54 2,471 competing apps Median installs: 1,964 Avg rating: 2.5 | — | — | 145 major competitor apps |
| many | 67 | 100 | 56 | 83 166,519 competing apps Median installs: 5,326 Avg rating: 2.6 | — | — | 11,796 major competitor apps |
App Description
Turns an Android into a powerful tool for audio Impulse Response measurements
This app will only be of interest to those who understand what an Impulse Response is!
The app generates an MLS signal from the speaker (or headset jack) and records it via the microphone, and then calculates the response of the system as a function of frequency and as a time series. The MLS signal is an alternative method to the usual sine wave sweeps, and in many ways superior.
The IR can be saved as a 44.1kHz 16bit Mono WAV file for use with third party tools such as Voxengo that use Impulse Response data.
The display shows the realtime spectral response together with the derived impulse signal as well as the step function. The spectrum can be shown in 1/1, 1/3 or 1/6 ISO octave bands, or in full pixel resolution. Another display shows the Phase of the impulse response as a function of frequency: the phase is unwrapped. The level (dB), frequency (HZ) can be adjusted via the Menu. An automatic time window feature homes in on the time region around the impulse - the duration of the window can be adjusted via the Menu.
The impulse and phase signal can be averaged, if desired. Spectrum response as well as the time series of the impulse response data can be saved in a file to the SD card for later retrieval, or offline processing (the files are simple text files easily imported into e.g. Excel), and shown alongside the realtime spectrum data.
To test the response of audio equipment, the MLS signal may be fed into its Line In input via a cable attached to the phone's headset jack. If a higher quality external microphone is to be used it can easily be attached using a Y breakout connector in the headset jack.
The MLS (Maximum Length Sequence) signal is much better than a simple pulse signal in that it has a greater power density and thus causes the equipment under test to operate in a more usual regime by exciting the whole frequency spectrum at once. This app uses a Fast Hadamard Transform to calculate the necessary convolution of the recorded signal with the MLS in order to extract the impulse response of the system.
Feedback and/or questions/problem reports are most welcome - please send email.
(If you require an Android-based SPL meter, Signal Generator, RT60 meter and Spectrum Analyser, please see our AudioTool app, also in Goog